From ee1868a10e06b8c7ed8e26ed22046091a8e5adf1 Mon Sep 17 00:00:00 2001
From: Yiyang Kang <kkyy@kkyy.me>
Date: Fri, 27 Feb 2026 12:55:48 +0900
Subject: [PATCH] chore: add package level comments

---
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 303 files changed, 303 insertions(+)

diff --git a/solutions/0/q1/solution.go b/solutions/0/q1/solution.go
index 72db61f..0309608 100644
--- a/solutions/0/q1/solution.go
+++ b/solutions/0/q1/solution.go
@@ -1,3 +1,4 @@
+// Package q1 implements a solution for https://leetcode.com/problems/two-sum/
 package q1
 
 import "slices"
diff --git a/solutions/0/q12/solution.go b/solutions/0/q12/solution.go
index 0c8ff69..856c4f2 100644
--- a/solutions/0/q12/solution.go
+++ b/solutions/0/q12/solution.go
@@ -1,3 +1,4 @@
+// Package q12 implements a solution for https://leetcode.com/problems/integer-to-roman/
 package q12
 
 import "strings"
diff --git a/solutions/0/q13/solution.go b/solutions/0/q13/solution.go
index b281763..fc6d61e 100644
--- a/solutions/0/q13/solution.go
+++ b/solutions/0/q13/solution.go
@@ -1,3 +1,4 @@
+// Package q13 implements a solution for https://leetcode.com/problems/roman-to-integer/
 package q13
 
 func lookup(b byte) int {
diff --git a/solutions/0/q14/solution.go b/solutions/0/q14/solution.go
index c91f0cf..71f0ba5 100644
--- a/solutions/0/q14/solution.go
+++ b/solutions/0/q14/solution.go
@@ -1,3 +1,4 @@
+// Package q14 implements a solution for https://leetcode.com/problems/longest-common-prefix/
 package q14
 
 func longestCommonPrefix(strs []string) string {
diff --git a/solutions/0/q15/solution.go b/solutions/0/q15/solution.go
index 69d9fcd..2e7a939 100644
--- a/solutions/0/q15/solution.go
+++ b/solutions/0/q15/solution.go
@@ -1,3 +1,4 @@
+// Package q15 implements a solution for https://leetcode.com/problems/3sum/
 package q15
 
 import "slices"
diff --git a/solutions/0/q17/solution.go b/solutions/0/q17/solution.go
index 632e70d..8c1744f 100644
--- a/solutions/0/q17/solution.go
+++ b/solutions/0/q17/solution.go
@@ -1,3 +1,4 @@
+// Package q17 implements a solution for https://leetcode.com/problems/letter-combinations-of-a-phone-number/
 package q17
 
 var alphabets = [][]byte{
diff --git a/solutions/0/q19/solution.go b/solutions/0/q19/solution.go
index 06a6f9a..3777888 100644
--- a/solutions/0/q19/solution.go
+++ b/solutions/0/q19/solution.go
@@ -1,3 +1,4 @@
+// Package q19 implements a solution for https://leetcode.com/problems/remove-nth-node-from-end-of-list/
 package q19
 
 type ListNode struct {
diff --git a/solutions/0/q2/solution.go b/solutions/0/q2/solution.go
index 581cb7f..535d844 100644
--- a/solutions/0/q2/solution.go
+++ b/solutions/0/q2/solution.go
@@ -1,3 +1,4 @@
+// Package q2 implements a solution for https://leetcode.com/problems/add-two-numbers/
 package q2
 
 type ListNode struct {
diff --git a/solutions/0/q20/solution.go b/solutions/0/q20/solution.go
index 254d63b..fa072ca 100644
--- a/solutions/0/q20/solution.go
+++ b/solutions/0/q20/solution.go
@@ -1,3 +1,4 @@
+// Package q20 implements a solution for https://leetcode.com/problems/valid-parentheses/
 package q20
 
 func isValid(s string) bool {
diff --git a/solutions/0/q21/solution.go b/solutions/0/q21/solution.go
index 79cb325..04c96f2 100644
--- a/solutions/0/q21/solution.go
+++ b/solutions/0/q21/solution.go
@@ -1,3 +1,4 @@
+// Package q21 implements a solution for https://leetcode.com/problems/merge-two-sorted-lists/
 package q21
 
 type ListNode struct {
diff --git a/solutions/0/q22/solution.go b/solutions/0/q22/solution.go
index 4389b45..17ea223 100644
--- a/solutions/0/q22/solution.go
+++ b/solutions/0/q22/solution.go
@@ -1,3 +1,4 @@
+// Package q22 implements a solution for https://leetcode.com/problems/generate-parentheses/
 package q22
 
 func gen(n, lvl, used int, buf []byte, ret []string) []string {
diff --git a/solutions/0/q23/solution.go b/solutions/0/q23/solution.go
index 168d7e0..dbd89c6 100644
--- a/solutions/0/q23/solution.go
+++ b/solutions/0/q23/solution.go
@@ -1,3 +1,4 @@
+// Package q23 implements a solution for https://leetcode.com/problems/merge-k-sorted-lists/
 package q23
 
 import "container/heap"
diff --git a/solutions/0/q25/solution.go b/solutions/0/q25/solution.go
index 118c3a0..bdaffe8 100644
--- a/solutions/0/q25/solution.go
+++ b/solutions/0/q25/solution.go
@@ -1,3 +1,4 @@
+// Package q25 implements a solution for https://leetcode.com/problems/reverse-nodes-in-k-group/
 package q25
 
 type ListNode struct {
diff --git a/solutions/0/q28/solution.go b/solutions/0/q28/solution.go
index 9a589ee..a70e754 100644
--- a/solutions/0/q28/solution.go
+++ b/solutions/0/q28/solution.go
@@ -1,3 +1,4 @@
+// Package q28 implements a solution for https://leetcode.com/problems/find-the-index-of-the-first-occurrence-in-a-string/
 package q28
 
 import "strings"
diff --git a/solutions/0/q3/solution.go b/solutions/0/q3/solution.go
index 52466e0..9be262a 100644
--- a/solutions/0/q3/solution.go
+++ b/solutions/0/q3/solution.go
@@ -1,3 +1,4 @@
+// Package q3 implements a solution for https://leetcode.com/problems/longest-substring-without-repeating-characters/
 package q3
 
 func lengthOfLongestSubstring(s string) int {
diff --git a/solutions/0/q33/solution.go b/solutions/0/q33/solution.go
index 2ab6a35..a0b183a 100644
--- a/solutions/0/q33/solution.go
+++ b/solutions/0/q33/solution.go
@@ -1,3 +1,4 @@
+// Package q33 implements a solution for https://leetcode.com/problems/search-in-rotated-sorted-array/
 package q33
 
 func findK(nums []int) int {
diff --git a/solutions/0/q34/solution.go b/solutions/0/q34/solution.go
index 4f00f27..f10a51c 100644
--- a/solutions/0/q34/solution.go
+++ b/solutions/0/q34/solution.go
@@ -1,3 +1,4 @@
+// Package q34 implements a solution for https://leetcode.com/problems/find-first-and-last-position-of-element-in-sorted-array/
 package q34
 
 func find(nums []int, target int) int {
diff --git a/solutions/0/q35/solution.go b/solutions/0/q35/solution.go
index 15f6011..ff4c4b6 100644
--- a/solutions/0/q35/solution.go
+++ b/solutions/0/q35/solution.go
@@ -1,3 +1,4 @@
+// Package q35 implements a solution for https://leetcode.com/problems/search-insert-position/
 package q35
 
 func searchInsert(nums []int, target int) int {
diff --git a/solutions/0/q36/solution.go b/solutions/0/q36/solution.go
index 08f3f77..6fd8a96 100644
--- a/solutions/0/q36/solution.go
+++ b/solutions/0/q36/solution.go
@@ -1,3 +1,4 @@
+// Package q36 implements a solution for https://leetcode.com/problems/valid-sudoku/
 package q36
 
 func validateCol(board [][]byte, col int) bool {
diff --git a/solutions/0/q39/solution.go b/solutions/0/q39/solution.go
index ece03b3..88ad1c0 100644
--- a/solutions/0/q39/solution.go
+++ b/solutions/0/q39/solution.go
@@ -1,3 +1,4 @@
+// Package q39 implements a solution for https://leetcode.com/problems/combination-sum/
 package q39
 
 import "slices"
diff --git a/solutions/0/q4/solution.go b/solutions/0/q4/solution.go
index 5463316..85ae5ec 100644
--- a/solutions/0/q4/solution.go
+++ b/solutions/0/q4/solution.go
@@ -1,3 +1,4 @@
+// Package q4 implements a solution for https://leetcode.com/problems/median-of-two-sorted-arrays/
 package q4
 
 import "math"
diff --git a/solutions/0/q42/solution.go b/solutions/0/q42/solution.go
index ed790a1..91d5436 100644
--- a/solutions/0/q42/solution.go
+++ b/solutions/0/q42/solution.go
@@ -1,3 +1,4 @@
+// Package q42 implements a solution for https://leetcode.com/problems/trapping-rain-water/
 package q42
 
 func trap(height []int) int {
diff --git a/solutions/0/q43/solution.go b/solutions/0/q43/solution.go
index bbb1b48..4e6eeb4 100644
--- a/solutions/0/q43/solution.go
+++ b/solutions/0/q43/solution.go
@@ -1,3 +1,4 @@
+// Package q43 implements a solution for https://leetcode.com/problems/multiply-strings/
 package q43
 
 import "slices"
diff --git a/solutions/0/q46/solution.go b/solutions/0/q46/solution.go
index 7500ab4..927409c 100644
--- a/solutions/0/q46/solution.go
+++ b/solutions/0/q46/solution.go
@@ -1,3 +1,4 @@
+// Package q46 implements a solution for https://leetcode.com/problems/permutations/
 package q46
 
 func recurse(nums []int, offset int, buf []int, seen []bool, ret [][]int) [][]int {
diff --git a/solutions/0/q48/solution.go b/solutions/0/q48/solution.go
index 31b5609..5ddd8b1 100644
--- a/solutions/0/q48/solution.go
+++ b/solutions/0/q48/solution.go
@@ -1,3 +1,4 @@
+// Package q48 implements a solution for https://leetcode.com/problems/rotate-image/
 package q48
 
 func rotateCell(matrix [][]int, x, y int) {
diff --git a/solutions/0/q49/solution.go b/solutions/0/q49/solution.go
index 8b55209..5673c67 100644
--- a/solutions/0/q49/solution.go
+++ b/solutions/0/q49/solution.go
@@ -1,3 +1,4 @@
+// Package q49 implements a solution for https://leetcode.com/problems/group-anagrams/
 package q49
 
 import "slices"
diff --git a/solutions/0/q5/solution.go b/solutions/0/q5/solution.go
index 6228213..c637b29 100644
--- a/solutions/0/q5/solution.go
+++ b/solutions/0/q5/solution.go
@@ -1,3 +1,4 @@
+// Package q5 implements a solution for https://leetcode.com/problems/longest-palindromic-substring/
 package q5
 
 // Note: Although it can be done in O(N) with, e.g., Manacher's algorithm, the
diff --git a/solutions/0/q50/solution.go b/solutions/0/q50/solution.go
index 2e88b24..9125d7b 100644
--- a/solutions/0/q50/solution.go
+++ b/solutions/0/q50/solution.go
@@ -1,3 +1,4 @@
+// Package q50 implements a solution for https://leetcode.com/problems/powx-n/
 package q50
 
 func myPow(x float64, n int) float64 {
diff --git a/solutions/0/q52/solution.go b/solutions/0/q52/solution.go
index 8618f23..e3f915a 100644
--- a/solutions/0/q52/solution.go
+++ b/solutions/0/q52/solution.go
@@ -1,3 +1,4 @@
+// Package q52 implements a solution for https://leetcode.com/problems/n-queens-ii/
 package q52
 
 func findNSolutions(nQueen, row int, rows, cols, diag1, diag2 []bool) int {
diff --git a/solutions/0/q53/solution.go b/solutions/0/q53/solution.go
index af32086..07b8c87 100644
--- a/solutions/0/q53/solution.go
+++ b/solutions/0/q53/solution.go
@@ -1,3 +1,4 @@
+// Package q53 implements a solution for https://leetcode.com/problems/maximum-subarray/
 package q53
 
 import "math"
diff --git a/solutions/0/q54/solution.go b/solutions/0/q54/solution.go
index 25b2570..06fae07 100644
--- a/solutions/0/q54/solution.go
+++ b/solutions/0/q54/solution.go
@@ -1,3 +1,4 @@
+// Package q54 implements a solution for https://leetcode.com/problems/spiral-matrix/
 package q54
 
 import "math"
diff --git a/solutions/0/q56/solution.go b/solutions/0/q56/solution.go
index 920f87a..beee33f 100644
--- a/solutions/0/q56/solution.go
+++ b/solutions/0/q56/solution.go
@@ -1,3 +1,4 @@
+// Package q56 implements a solution for https://leetcode.com/problems/merge-intervals/
 package q56
 
 import "slices"
diff --git a/solutions/0/q57/solution.go b/solutions/0/q57/solution.go
index 62fea24..6200fac 100644
--- a/solutions/0/q57/solution.go
+++ b/solutions/0/q57/solution.go
@@ -1,3 +1,4 @@
+// Package q57 implements a solution for https://leetcode.com/problems/insert-interval/
 package q57
 
 func insert(intervals [][]int, newInterval []int) [][]int {
diff --git a/solutions/0/q58/solution.go b/solutions/0/q58/solution.go
index e299fb0..0c4c4cb 100644
--- a/solutions/0/q58/solution.go
+++ b/solutions/0/q58/solution.go
@@ -1,3 +1,4 @@
+// Package q58 implements a solution for https://leetcode.com/problems/length-of-last-word/
 package q58
 
 func lengthOfLastWord(s string) int {
diff --git a/solutions/0/q6/solution.go b/solutions/0/q6/solution.go
index 31b15fd..611f2a8 100644
--- a/solutions/0/q6/solution.go
+++ b/solutions/0/q6/solution.go
@@ -1,3 +1,4 @@
+// Package q6 implements a solution for https://leetcode.com/problems/zigzag-conversion/
 package q6
 
 import "strings"
diff --git a/solutions/0/q61/solution.go b/solutions/0/q61/solution.go
index 7fe1cb1..7269bd3 100644
--- a/solutions/0/q61/solution.go
+++ b/solutions/0/q61/solution.go
@@ -1,3 +1,4 @@
+// Package q61 implements a solution for https://leetcode.com/problems/rotate-list/
 package q61
 
 type ListNode struct {
diff --git a/solutions/0/q62/solution.go b/solutions/0/q62/solution.go
index 7d08c03..2adfddc 100644
--- a/solutions/0/q62/solution.go
+++ b/solutions/0/q62/solution.go
@@ -1,3 +1,4 @@
+// Package q62 implements a solution for https://leetcode.com/problems/unique-paths/
 package q62
 
 func uniquePaths(m int, n int) int {
diff --git a/solutions/0/q63/solution.go b/solutions/0/q63/solution.go
index cf5011e..0c48066 100644
--- a/solutions/0/q63/solution.go
+++ b/solutions/0/q63/solution.go
@@ -1,3 +1,4 @@
+// Package q63 implements a solution for https://leetcode.com/problems/unique-paths-ii/
 package q63
 
 func uniquePathsWithObstacles(obstacleGrid [][]int) int {
diff --git a/solutions/0/q64/solution.go b/solutions/0/q64/solution.go
index d8bb586..4f97ddb 100644
--- a/solutions/0/q64/solution.go
+++ b/solutions/0/q64/solution.go
@@ -1,3 +1,4 @@
+// Package q64 implements a solution for https://leetcode.com/problems/minimum-path-sum/
 package q64
 
 func minPathSum(grid [][]int) int {
diff --git a/solutions/0/q66/solution.go b/solutions/0/q66/solution.go
index fdcfb96..8ce1ae6 100644
--- a/solutions/0/q66/solution.go
+++ b/solutions/0/q66/solution.go
@@ -1,3 +1,4 @@
+// Package q66 implements a solution for https://leetcode.com/problems/plus-one/
 package q66
 
 func plusOne(digits []int) []int {
diff --git a/solutions/0/q67/solution.go b/solutions/0/q67/solution.go
index b1618ef..1337883 100644
--- a/solutions/0/q67/solution.go
+++ b/solutions/0/q67/solution.go
@@ -1,3 +1,4 @@
+// Package q67 implements a solution for https://leetcode.com/problems/add-binary/
 package q67
 
 func toDigit(byt byte) uint8  { return byt - '0' }
diff --git a/solutions/0/q68/solution.go b/solutions/0/q68/solution.go
index d536aa9..b62c8a8 100644
--- a/solutions/0/q68/solution.go
+++ b/solutions/0/q68/solution.go
@@ -1,3 +1,4 @@
+// Package q68 implements a solution for https://leetcode.com/problems/text-justification/
 package q68
 
 var (
diff --git a/solutions/0/q69/solution.go b/solutions/0/q69/solution.go
index f02eb65..a18ddf3 100644
--- a/solutions/0/q69/solution.go
+++ b/solutions/0/q69/solution.go
@@ -1,3 +1,4 @@
+// Package q69 implements a solution for https://leetcode.com/problems/sqrtx/
 package q69
 
 func mySqrt(x int) int {
diff --git a/solutions/0/q70/solution.go b/solutions/0/q70/solution.go
index 540545d..aa31ab0 100644
--- a/solutions/0/q70/solution.go
+++ b/solutions/0/q70/solution.go
@@ -1,3 +1,4 @@
+// Package q70 implements a solution for https://leetcode.com/problems/climbing-stairs/
 package q70
 
 func nWays(n, i int, cache []int) int {
diff --git a/solutions/0/q71/solution.go b/solutions/0/q71/solution.go
index bf2668b..b8d94ae 100644
--- a/solutions/0/q71/solution.go
+++ b/solutions/0/q71/solution.go
@@ -1,3 +1,4 @@
+// Package q71 implements a solution for https://leetcode.com/problems/simplify-path/
 package q71
 
 import "strings"
diff --git a/solutions/0/q72/solution.go b/solutions/0/q72/solution.go
index 5c4fb4e..0d2b576 100644
--- a/solutions/0/q72/solution.go
+++ b/solutions/0/q72/solution.go
@@ -1,3 +1,4 @@
+// Package q72 implements a solution for https://leetcode.com/problems/edit-distance/
 package q72
 
 func make2d[T any](rows, cols int) [][]T {
diff --git a/solutions/0/q73/solution.go b/solutions/0/q73/solution.go
index 1b373ff..62e73a7 100644
--- a/solutions/0/q73/solution.go
+++ b/solutions/0/q73/solution.go
@@ -1,3 +1,4 @@
+// Package q73 implements a solution for https://leetcode.com/problems/set-matrix-zeroes/
 package q73
 
 func setZeroes(matrix [][]int) {
diff --git a/solutions/0/q74/solution.go b/solutions/0/q74/solution.go
index 4543215..6650399 100644
--- a/solutions/0/q74/solution.go
+++ b/solutions/0/q74/solution.go
@@ -1,3 +1,4 @@
+// Package q74 implements a solution for https://leetcode.com/problems/search-a-2d-matrix/
 package q74
 
 func searchMatrix(matrix [][]int, target int) bool {
diff --git a/solutions/0/q77/solution.go b/solutions/0/q77/solution.go
index 9e987b6..688b557 100644
--- a/solutions/0/q77/solution.go
+++ b/solutions/0/q77/solution.go
@@ -1,3 +1,4 @@
+// Package q77 implements a solution for https://leetcode.com/problems/combinations/
 package q77
 
 var (
diff --git a/solutions/0/q79/solution.go b/solutions/0/q79/solution.go
index 437b339..e46bfb6 100644
--- a/solutions/0/q79/solution.go
+++ b/solutions/0/q79/solution.go
@@ -1,3 +1,4 @@
+// Package q79 implements a solution for https://leetcode.com/problems/word-search/
 package q79
 
 func search(board [][]byte, word string, prefixLen, row, col int) bool {
diff --git a/solutions/0/q8/solution.go b/solutions/0/q8/solution.go
index 8698445..b7e997a 100644
--- a/solutions/0/q8/solution.go
+++ b/solutions/0/q8/solution.go
@@ -1,3 +1,4 @@
+// Package q8 implements a solution for https://leetcode.com/problems/string-to-integer-atoi/
 package q8
 
 const (
diff --git a/solutions/0/q82/solution.go b/solutions/0/q82/solution.go
index a40254d..78191da 100644
--- a/solutions/0/q82/solution.go
+++ b/solutions/0/q82/solution.go
@@ -1,3 +1,4 @@
+// Package q82 implements a solution for https://leetcode.com/problems/remove-duplicates-from-sorted-list-ii/
 package q82
 
 type ListNode struct {
diff --git a/solutions/0/q84/solution.go b/solutions/0/q84/solution.go
index a8d38cd..8ab9f87 100644
--- a/solutions/0/q84/solution.go
+++ b/solutions/0/q84/solution.go
@@ -1,3 +1,4 @@
+// Package q84 implements a solution for https://leetcode.com/problems/largest-rectangle-in-histogram/
 package q84
 
 func largestRectangleArea(heights []int) int {
diff --git a/solutions/0/q85/solution.go b/solutions/0/q85/solution.go
index 7051fc0..f9d7c72 100644
--- a/solutions/0/q85/solution.go
+++ b/solutions/0/q85/solution.go
@@ -1,3 +1,4 @@
+// Package q85 implements a solution for https://leetcode.com/problems/maximal-rectangle/
 package q85
 
 func maximalRectangle(matrix [][]byte) int {
diff --git a/solutions/0/q86/solution.go b/solutions/0/q86/solution.go
index de9c52f..8553f5d 100644
--- a/solutions/0/q86/solution.go
+++ b/solutions/0/q86/solution.go
@@ -1,3 +1,4 @@
+// Package q86 implements a solution for https://leetcode.com/problems/partition-list/
 package q86
 
 type ListNode struct {
diff --git a/solutions/0/q9/solution.go b/solutions/0/q9/solution.go
index faf307a..35a4857 100644
--- a/solutions/0/q9/solution.go
+++ b/solutions/0/q9/solution.go
@@ -1,3 +1,4 @@
+// Package q9 implements a solution for https://leetcode.com/problems/palindrome-number/
 package q9
 
 import "strconv"
diff --git a/solutions/0/q92/solution.go b/solutions/0/q92/solution.go
index edc2934..f486215 100644
--- a/solutions/0/q92/solution.go
+++ b/solutions/0/q92/solution.go
@@ -1,3 +1,4 @@
+// Package q92 implements a solution for https://leetcode.com/problems/reverse-linked-list-ii/
 package q92
 
 type ListNode struct {
diff --git a/solutions/0/q94/solution.go b/solutions/0/q94/solution.go
index f86701c..5728725 100644
--- a/solutions/0/q94/solution.go
+++ b/solutions/0/q94/solution.go
@@ -1,3 +1,4 @@
+// Package q94 implements a solution for https://leetcode.com/problems/binary-tree-inorder-traversal/
 package q94
 
 type TreeNode struct {
diff --git a/solutions/0/q97/solution.go b/solutions/0/q97/solution.go
index d9ea20d..d8df3a1 100644
--- a/solutions/0/q97/solution.go
+++ b/solutions/0/q97/solution.go
@@ -1,3 +1,4 @@
+// Package q97 implements a solution for https://leetcode.com/problems/interleaving-string/
 package q97
 
 func isInterleave(s1 string, s2 string, s3 string) bool {
diff --git a/solutions/0/q98/solution.go b/solutions/0/q98/solution.go
index fa20161..853c937 100644
--- a/solutions/0/q98/solution.go
+++ b/solutions/0/q98/solution.go
@@ -1,3 +1,4 @@
+// Package q98 implements a solution for https://leetcode.com/problems/validate-binary-search-tree/
 package q98
 
 type TreeNode struct {
diff --git a/solutions/1/q100/solution.go b/solutions/1/q100/solution.go
index 255748e..31fa0b8 100644
--- a/solutions/1/q100/solution.go
+++ b/solutions/1/q100/solution.go
@@ -1,3 +1,4 @@
+// Package q100 implements a solution for https://leetcode.com/problems/same-tree/
 package q100
 
 type TreeNode struct {
diff --git a/solutions/1/q101/solution.go b/solutions/1/q101/solution.go
index 062ca32..c90d596 100644
--- a/solutions/1/q101/solution.go
+++ b/solutions/1/q101/solution.go
@@ -1,3 +1,4 @@
+// Package q101 implements a solution for https://leetcode.com/problems/symmetric-tree/
 package q101
 
 type TreeNode struct {
diff --git a/solutions/1/q102/solution.go b/solutions/1/q102/solution.go
index ab5828e..d8a5c8d 100644
--- a/solutions/1/q102/solution.go
+++ b/solutions/1/q102/solution.go
@@ -1,3 +1,4 @@
+// Package q102 implements a solution for https://leetcode.com/problems/binary-tree-level-order-traversal/
 package q102
 
 type TreeNode struct {
diff --git a/solutions/1/q103/solution.go b/solutions/1/q103/solution.go
index d6fb18a..502fa20 100644
--- a/solutions/1/q103/solution.go
+++ b/solutions/1/q103/solution.go
@@ -1,3 +1,4 @@
+// Package q103 implements a solution for https://leetcode.com/problems/binary-tree-zigzag-level-order-traversal/
 package q103
 
 import "slices"
diff --git a/solutions/1/q104/solution.go b/solutions/1/q104/solution.go
index 78fa9ca..7ec2707 100644
--- a/solutions/1/q104/solution.go
+++ b/solutions/1/q104/solution.go
@@ -1,3 +1,4 @@
+// Package q104 implements a solution for https://leetcode.com/problems/maximum-depth-of-binary-tree/
 package q104
 
 type TreeNode struct {
diff --git a/solutions/1/q105/solution.go b/solutions/1/q105/solution.go
index b645da6..191e923 100644
--- a/solutions/1/q105/solution.go
+++ b/solutions/1/q105/solution.go
@@ -1,3 +1,4 @@
+// Package q105 implements a solution for https://leetcode.com/problems/construct-binary-tree-from-preorder-and-inorder-traversal/
 package q105
 
 type TreeNode struct {
diff --git a/solutions/1/q106/solution.go b/solutions/1/q106/solution.go
index 91f126d..6b2aace 100644
--- a/solutions/1/q106/solution.go
+++ b/solutions/1/q106/solution.go
@@ -1,3 +1,4 @@
+// Package q106 implements a solution for https://leetcode.com/problems/construct-binary-tree-from-inorder-and-postorder-traversal/
 package q106
 
 import "slices"
diff --git a/solutions/1/q108/solution.go b/solutions/1/q108/solution.go
index 2de7147..33c838d 100644
--- a/solutions/1/q108/solution.go
+++ b/solutions/1/q108/solution.go
@@ -1,3 +1,4 @@
+// Package q108 implements a solution for https://leetcode.com/problems/convert-sorted-array-to-binary-search-tree/
 package q108
 
 type TreeNode struct {
diff --git a/solutions/1/q110/solution.go b/solutions/1/q110/solution.go
index 94b73e1..72f7660 100644
--- a/solutions/1/q110/solution.go
+++ b/solutions/1/q110/solution.go
@@ -1,3 +1,4 @@
+// Package q110 implements a solution for https://leetcode.com/problems/balanced-binary-tree/
 package q110
 
 type TreeNode struct {
diff --git a/solutions/1/q112/solution.go b/solutions/1/q112/solution.go
index 5571d73..67fa972 100644
--- a/solutions/1/q112/solution.go
+++ b/solutions/1/q112/solution.go
@@ -1,3 +1,4 @@
+// Package q112 implements a solution for https://leetcode.com/problems/path-sum/
 package q112
 
 type TreeNode struct {
diff --git a/solutions/1/q114/solution.go b/solutions/1/q114/solution.go
index b52d640..002b31a 100644
--- a/solutions/1/q114/solution.go
+++ b/solutions/1/q114/solution.go
@@ -1,3 +1,4 @@
+// Package q114 implements a solution for https://leetcode.com/problems/flatten-binary-tree-to-linked-list/
 package q114
 
 type TreeNode struct {
diff --git a/solutions/1/q117/solution.go b/solutions/1/q117/solution.go
index 1c6ba30..c55045b 100644
--- a/solutions/1/q117/solution.go
+++ b/solutions/1/q117/solution.go
@@ -1,3 +1,4 @@
+// Package q117 implements a solution for https://leetcode.com/problems/populating-next-right-pointers-in-each-node-ii/
 package q117
 
 type Node struct {
diff --git a/solutions/1/q118/solution.go b/solutions/1/q118/solution.go
index a27e6fa..71a7955 100644
--- a/solutions/1/q118/solution.go
+++ b/solutions/1/q118/solution.go
@@ -1,3 +1,4 @@
+// Package q118 implements a solution for https://leetcode.com/problems/pascals-triangle/
 package q118
 
 func generate(numRows int) [][]int {
diff --git a/solutions/1/q120/solution.go b/solutions/1/q120/solution.go
index 5978b01..026f2df 100644
--- a/solutions/1/q120/solution.go
+++ b/solutions/1/q120/solution.go
@@ -1,3 +1,4 @@
+// Package q120 implements a solution for https://leetcode.com/problems/triangle/
 package q120
 
 func minimumTotal(triangle [][]int) int {
diff --git a/solutions/1/q125/solution.go b/solutions/1/q125/solution.go
index e9b33fd..cdf02e6 100644
--- a/solutions/1/q125/solution.go
+++ b/solutions/1/q125/solution.go
@@ -1,3 +1,4 @@
+// Package q125 implements a solution for https://leetcode.com/problems/valid-palindrome/
 package q125
 
 func isAlphanumeric(c byte) bool {
diff --git a/solutions/1/q127/solution.go b/solutions/1/q127/solution.go
index 0899383..049e0e5 100644
--- a/solutions/1/q127/solution.go
+++ b/solutions/1/q127/solution.go
@@ -1,3 +1,4 @@
+// Package q127 implements a solution for https://leetcode.com/problems/word-ladder/
 package q127
 
 // Ideas for improvement: use a hashmap to index strings instead of an O(n^2)
diff --git a/solutions/1/q128/solution.go b/solutions/1/q128/solution.go
index 129ccb1..7073ce3 100644
--- a/solutions/1/q128/solution.go
+++ b/solutions/1/q128/solution.go
@@ -1,3 +1,4 @@
+// Package q128 implements a solution for https://leetcode.com/problems/longest-consecutive-sequence/
 package q128
 
 func longestConsecutive(nums []int) int {
diff --git a/solutions/1/q129/solution.go b/solutions/1/q129/solution.go
index eb0bc8d..814d6de 100644
--- a/solutions/1/q129/solution.go
+++ b/solutions/1/q129/solution.go
@@ -1,3 +1,4 @@
+// Package q129 implements a solution for https://leetcode.com/problems/sum-root-to-leaf-numbers/
 package q129
 
 type TreeNode struct {
diff --git a/solutions/1/q130/solution.go b/solutions/1/q130/solution.go
index d11467a..8cc38cf 100644
--- a/solutions/1/q130/solution.go
+++ b/solutions/1/q130/solution.go
@@ -1,3 +1,4 @@
+// Package q130 implements a solution for https://leetcode.com/problems/surrounded-regions/
 package q130
 
 func markI(board [][]byte, x, y int) {
diff --git a/solutions/1/q133/solution.go b/solutions/1/q133/solution.go
index 00111a9..425baae 100644
--- a/solutions/1/q133/solution.go
+++ b/solutions/1/q133/solution.go
@@ -1,3 +1,4 @@
+// Package q133 implements a solution for https://leetcode.com/problems/clone-graph/
 package q133
 
 type Node struct {
diff --git a/solutions/1/q134/solution.go b/solutions/1/q134/solution.go
index 8682c46..3b7c0a5 100644
--- a/solutions/1/q134/solution.go
+++ b/solutions/1/q134/solution.go
@@ -1,3 +1,4 @@
+// Package q134 implements a solution for https://leetcode.com/problems/gas-station/
 package q134
 
 func canCompleteCircuit(gas []int, cost []int) int {
diff --git a/solutions/1/q135/solution.go b/solutions/1/q135/solution.go
index 424c6d4..5257ac2 100644
--- a/solutions/1/q135/solution.go
+++ b/solutions/1/q135/solution.go
@@ -1,3 +1,4 @@
+// Package q135 implements a solution for https://leetcode.com/problems/candy/
 package q135
 
 func candy(ratings []int) int {
diff --git a/solutions/1/q136/solution.go b/solutions/1/q136/solution.go
index f1a8404..dac3569 100644
--- a/solutions/1/q136/solution.go
+++ b/solutions/1/q136/solution.go
@@ -1,3 +1,4 @@
+// Package q136 implements a solution for https://leetcode.com/problems/single-number/
 package q136
 
 func singleNumber(nums []int) int {
diff --git a/solutions/1/q137/solution.go b/solutions/1/q137/solution.go
index 6e7c50c..8fc7593 100644
--- a/solutions/1/q137/solution.go
+++ b/solutions/1/q137/solution.go
@@ -1,3 +1,4 @@
+// Package q137 implements a solution for https://leetcode.com/problems/single-number-ii/
 package q137
 
 func singleNumber(nums []int) int {
diff --git a/solutions/1/q138/solution.go b/solutions/1/q138/solution.go
index ecfbda4..9469151 100644
--- a/solutions/1/q138/solution.go
+++ b/solutions/1/q138/solution.go
@@ -1,3 +1,4 @@
+// Package q138 implements a solution for https://leetcode.com/problems/copy-list-with-random-pointer/
 package q138
 
 type Node struct {
diff --git a/solutions/1/q139/solution.go b/solutions/1/q139/solution.go
index 0935c3b..3683fe4 100644
--- a/solutions/1/q139/solution.go
+++ b/solutions/1/q139/solution.go
@@ -1,3 +1,4 @@
+// Package q139 implements a solution for https://leetcode.com/problems/word-break/
 package q139
 
 func wordBreak(s string, wordDict []string) bool {
diff --git a/solutions/1/q141/solution.go b/solutions/1/q141/solution.go
index e927c9f..120e3bc 100644
--- a/solutions/1/q141/solution.go
+++ b/solutions/1/q141/solution.go
@@ -1,3 +1,4 @@
+// Package q141 implements a solution for https://leetcode.com/problems/linked-list-cycle/
 package q141
 
 type ListNode struct {
diff --git a/solutions/1/q142/solution.go b/solutions/1/q142/solution.go
index fb53a3e..e7ac207 100644
--- a/solutions/1/q142/solution.go
+++ b/solutions/1/q142/solution.go
@@ -1,3 +1,4 @@
+// Package q142 implements a solution for https://leetcode.com/problems/linked-list-cycle-ii/
 package q142
 
 type ListNode struct {
diff --git a/solutions/1/q144/solution.go b/solutions/1/q144/solution.go
index af1ba92..d79431e 100644
--- a/solutions/1/q144/solution.go
+++ b/solutions/1/q144/solution.go
@@ -1,3 +1,4 @@
+// Package q144 implements a solution for https://leetcode.com/problems/binary-tree-preorder-traversal/
 package q144
 
 type TreeNode struct {
diff --git a/solutions/1/q145/solution.go b/solutions/1/q145/solution.go
index dc4d8ff..715ff9a 100644
--- a/solutions/1/q145/solution.go
+++ b/solutions/1/q145/solution.go
@@ -1,3 +1,4 @@
+// Package q145 implements a solution for https://leetcode.com/problems/binary-tree-postorder-traversal/
 package q145
 
 type TreeNode struct {
diff --git a/solutions/1/q146/solution.go b/solutions/1/q146/solution.go
index f993724..9d47eb3 100644
--- a/solutions/1/q146/solution.go
+++ b/solutions/1/q146/solution.go
@@ -1,3 +1,4 @@
+// Package q146 implements a solution for https://leetcode.com/problems/lru-cache/
 package q146
 
 type lruNode struct {
diff --git a/solutions/1/q148/solution.go b/solutions/1/q148/solution.go
index ea488d4..5c12050 100644
--- a/solutions/1/q148/solution.go
+++ b/solutions/1/q148/solution.go
@@ -1,3 +1,4 @@
+// Package q148 implements a solution for https://leetcode.com/problems/sort-list/
 package q148
 
 import "slices"
diff --git a/solutions/1/q150/solution.go b/solutions/1/q150/solution.go
index ce09cab..b4a5c59 100644
--- a/solutions/1/q150/solution.go
+++ b/solutions/1/q150/solution.go
@@ -1,3 +1,4 @@
+// Package q150 implements a solution for https://leetcode.com/problems/evaluate-reverse-polish-notation/
 package q150
 
 import "strconv"
diff --git a/solutions/1/q151/solution.go b/solutions/1/q151/solution.go
index df3e29f..cfbe3e2 100644
--- a/solutions/1/q151/solution.go
+++ b/solutions/1/q151/solution.go
@@ -1,3 +1,4 @@
+// Package q151 implements a solution for https://leetcode.com/problems/reverse-words-in-a-string/
 package q151
 
 import "strings"
diff --git a/solutions/1/q153/solution.go b/solutions/1/q153/solution.go
index 2ee45bc..fc17976 100644
--- a/solutions/1/q153/solution.go
+++ b/solutions/1/q153/solution.go
@@ -1,3 +1,4 @@
+// Package q153 implements a solution for https://leetcode.com/problems/find-minimum-in-rotated-sorted-array/
 package q153
 
 func findMin(nums []int) int {
diff --git a/solutions/1/q155/solution.go b/solutions/1/q155/solution.go
index 043fa1d..084fe28 100644
--- a/solutions/1/q155/solution.go
+++ b/solutions/1/q155/solution.go
@@ -1,3 +1,4 @@
+// Package q155 implements a solution for https://leetcode.com/problems/min-stack/
 package q155
 
 type stackElem struct {
diff --git a/solutions/1/q162/solution.go b/solutions/1/q162/solution.go
index 76ba592..00ac1b5 100644
--- a/solutions/1/q162/solution.go
+++ b/solutions/1/q162/solution.go
@@ -1,3 +1,4 @@
+// Package q162 implements a solution for https://leetcode.com/problems/find-peak-element/
 package q162
 
 // Important constraint: nums[i] != nums[i + 1]
diff --git a/solutions/1/q167/solution.go b/solutions/1/q167/solution.go
index c3dffda..05318f5 100644
--- a/solutions/1/q167/solution.go
+++ b/solutions/1/q167/solution.go
@@ -1,3 +1,4 @@
+// Package q167 implements a solution for https://leetcode.com/problems/two-sum-ii-input-array-is-sorted/
 package q167
 
 func twoSum(numbers []int, target int) []int {
diff --git a/solutions/1/q172/solution.go b/solutions/1/q172/solution.go
index 045345e..dcfca5d 100644
--- a/solutions/1/q172/solution.go
+++ b/solutions/1/q172/solution.go
@@ -1,3 +1,4 @@
+// Package q172 implements a solution for https://leetcode.com/problems/factorial-trailing-zeroes/
 package q172
 
 // Note: actually, counting 5 alone is enough since 2 certainly occurs more than 5.
diff --git a/solutions/1/q173/solution.go b/solutions/1/q173/solution.go
index 9c7b1c6..7beebb4 100644
--- a/solutions/1/q173/solution.go
+++ b/solutions/1/q173/solution.go
@@ -1,3 +1,4 @@
+// Package q173 implements a solution for https://leetcode.com/problems/binary-search-tree-iterator/
 package q173
 
 type TreeNode struct {
diff --git a/solutions/1/q190/solution.go b/solutions/1/q190/solution.go
index 31c77df..987f5bb 100644
--- a/solutions/1/q190/solution.go
+++ b/solutions/1/q190/solution.go
@@ -1,3 +1,4 @@
+// Package q190 implements a solution for https://leetcode.com/problems/reverse-bits/
 package q190
 
 func reverseBits(n int) int {
diff --git a/solutions/1/q191/solution.go b/solutions/1/q191/solution.go
index 6aad68a..41612e1 100644
--- a/solutions/1/q191/solution.go
+++ b/solutions/1/q191/solution.go
@@ -1,3 +1,4 @@
+// Package q191 implements a solution for https://leetcode.com/problems/number-of-1-bits/
 package q191
 
 func hammingWeight(n int) int {
diff --git a/solutions/1/q198/solution.go b/solutions/1/q198/solution.go
index c72252e..5fc2ff1 100644
--- a/solutions/1/q198/solution.go
+++ b/solutions/1/q198/solution.go
@@ -1,3 +1,4 @@
+// Package q198 implements a solution for https://leetcode.com/problems/house-robber/
 package q198
 
 func rob(nums []int) int {
diff --git a/solutions/1/q199/solution.go b/solutions/1/q199/solution.go
index 3ee35a9..0fecd45 100644
--- a/solutions/1/q199/solution.go
+++ b/solutions/1/q199/solution.go
@@ -1,3 +1,4 @@
+// Package q199 implements a solution for https://leetcode.com/problems/binary-tree-right-side-view/
 package q199
 
 type TreeNode struct {
diff --git a/solutions/10/q1004/solution.go b/solutions/10/q1004/solution.go
index 3d07b36..4ae33d6 100644
--- a/solutions/10/q1004/solution.go
+++ b/solutions/10/q1004/solution.go
@@ -1,3 +1,4 @@
+// Package q1004 implements a solution for https://leetcode.com/problems/max-consecutive-ones-iii/
 package q1004
 
 func longestOnes(nums []int, k int) int {
diff --git a/solutions/10/q1018/solution.go b/solutions/10/q1018/solution.go
index 373df41..8f049c0 100644
--- a/solutions/10/q1018/solution.go
+++ b/solutions/10/q1018/solution.go
@@ -1,3 +1,4 @@
+// Package q1018 implements a solution for https://leetcode.com/problems/binary-prefix-divisible-by-5/
 package q1018
 
 func prefixesDivBy5(nums []int) []bool {
diff --git a/solutions/10/q1022/solution.go b/solutions/10/q1022/solution.go
index ee96d2e..541f96e 100644
--- a/solutions/10/q1022/solution.go
+++ b/solutions/10/q1022/solution.go
@@ -1,3 +1,4 @@
+// Package q1022 implements a solution for https://leetcode.com/problems/sum-of-root-to-leaf-binary-numbers/
 package q1022
 
 type TreeNode struct {
diff --git a/solutions/10/q1041/solution.go b/solutions/10/q1041/solution.go
index 4aa06fe..38396cf 100644
--- a/solutions/10/q1041/solution.go
+++ b/solutions/10/q1041/solution.go
@@ -1,3 +1,4 @@
+// Package q1041 implements a solution for https://leetcode.com/problems/robot-bounded-in-circle/
 package q1041
 
 type Dir int8
diff --git a/solutions/10/q1046/solution.go b/solutions/10/q1046/solution.go
index 8249a68..74b7d77 100644
--- a/solutions/10/q1046/solution.go
+++ b/solutions/10/q1046/solution.go
@@ -1,3 +1,4 @@
+// Package q1046 implements a solution for https://leetcode.com/problems/last-stone-weight/
 package q1046
 
 import "container/heap"
diff --git a/solutions/10/q1071/solution.go b/solutions/10/q1071/solution.go
index bb3a9b9..a2039fc 100644
--- a/solutions/10/q1071/solution.go
+++ b/solutions/10/q1071/solution.go
@@ -1,3 +1,4 @@
+// Package q1071 implements a solution for https://leetcode.com/problems/greatest-common-divisor-of-strings/
 package q1071
 
 func isRepeatOf(segment, str string) bool {
diff --git a/solutions/11/q1114/solution.go b/solutions/11/q1114/solution.go
index 3e39131..105c920 100644
--- a/solutions/11/q1114/solution.go
+++ b/solutions/11/q1114/solution.go
@@ -1,3 +1,4 @@
+// Package q1114 implements a solution for https://leetcode.com/problems/print-in-order/
 package q1114
 
 type Foo struct {
diff --git a/solutions/11/q1115/solution.go b/solutions/11/q1115/solution.go
index efbfde4..d9fbc8a 100644
--- a/solutions/11/q1115/solution.go
+++ b/solutions/11/q1115/solution.go
@@ -1,3 +1,4 @@
+// Package q1115 implements a solution for https://leetcode.com/problems/print-foobar-alternately/
 package q1115
 
 type FooBar struct {
diff --git a/solutions/11/q1116/solution.go b/solutions/11/q1116/solution.go
index 1681aed..e246194 100644
--- a/solutions/11/q1116/solution.go
+++ b/solutions/11/q1116/solution.go
@@ -1,3 +1,4 @@
+// Package q1116 implements a solution for https://leetcode.com/problems/print-zero-even-odd/
 package q1116
 
 type void struct{}
diff --git a/solutions/11/q1117/solution.go b/solutions/11/q1117/solution.go
index e73d101..b5c49e9 100644
--- a/solutions/11/q1117/solution.go
+++ b/solutions/11/q1117/solution.go
@@ -1,3 +1,4 @@
+// Package q1117 implements a solution for https://leetcode.com/problems/building-h2o/
 package q1117
 
 type void struct{}
diff --git a/solutions/11/q1137/solution.go b/solutions/11/q1137/solution.go
index 87cbdf9..03fb9a3 100644
--- a/solutions/11/q1137/solution.go
+++ b/solutions/11/q1137/solution.go
@@ -1,3 +1,4 @@
+// Package q1137 implements a solution for https://leetcode.com/problems/n-th-tribonacci-number/
 package q1137
 
 func tribonacci(n int) int {
diff --git a/solutions/11/q1143/solution.go b/solutions/11/q1143/solution.go
index 231fa6e..ce81a88 100644
--- a/solutions/11/q1143/solution.go
+++ b/solutions/11/q1143/solution.go
@@ -1,3 +1,4 @@
+// Package q1143 implements a solution for https://leetcode.com/problems/longest-common-subsequence/
 package q1143
 
 // Note: Can be compressed to only len(text1) extra space.
diff --git a/solutions/11/q1161/solution.go b/solutions/11/q1161/solution.go
index 6aa3884..29a6c67 100644
--- a/solutions/11/q1161/solution.go
+++ b/solutions/11/q1161/solution.go
@@ -1,3 +1,4 @@
+// Package q1161 implements a solution for https://leetcode.com/problems/maximum-level-sum-of-a-binary-tree/
 package q1161
 
 import "math"
diff --git a/solutions/12/q1200/solution.go b/solutions/12/q1200/solution.go
index c6b97df..485b0cc 100644
--- a/solutions/12/q1200/solution.go
+++ b/solutions/12/q1200/solution.go
@@ -1,3 +1,4 @@
+// Package q1200 implements a solution for https://leetcode.com/problems/minimum-absolute-difference/
 package q1200
 
 import (
diff --git a/solutions/12/q1207/solution.go b/solutions/12/q1207/solution.go
index ddb5eec..8c1b0ee 100644
--- a/solutions/12/q1207/solution.go
+++ b/solutions/12/q1207/solution.go
@@ -1,3 +1,4 @@
+// Package q1207 implements a solution for https://leetcode.com/problems/unique-number-of-occurrences/
 package q1207
 
 import "slices"
diff --git a/solutions/12/q1226/solution.go b/solutions/12/q1226/solution.go
index b5e25d8..889a4fd 100644
--- a/solutions/12/q1226/solution.go
+++ b/solutions/12/q1226/solution.go
@@ -1,3 +1,4 @@
+// Package q1226 implements a solution for https://leetcode.com/problems/the-dining-philosophers/
 package q1226
 
 import "sync"
diff --git a/solutions/12/q1266/solution.go b/solutions/12/q1266/solution.go
index 31b75e6..f434fd9 100644
--- a/solutions/12/q1266/solution.go
+++ b/solutions/12/q1266/solution.go
@@ -1,3 +1,4 @@
+// Package q1266 implements a solution for https://leetcode.com/problems/minimum-time-visiting-all-points/
 package q1266
 
 func abs(i int) int {
diff --git a/solutions/12/q1268/solution.go b/solutions/12/q1268/solution.go
index 5216606..f989d40 100644
--- a/solutions/12/q1268/solution.go
+++ b/solutions/12/q1268/solution.go
@@ -1,3 +1,4 @@
+// Package q1268 implements a solution for https://leetcode.com/problems/search-suggestions-system/
 package q1268
 
 import "slices"
diff --git a/solutions/12/q1292/solution.go b/solutions/12/q1292/solution.go
index 98f94b0..5c99b3e 100644
--- a/solutions/12/q1292/solution.go
+++ b/solutions/12/q1292/solution.go
@@ -1,3 +1,4 @@
+// Package q1292 implements a solution for https://leetcode.com/problems/maximum-side-length-of-a-square-with-sum-less-than-or-equal-to-threshold/
 package q1292
 
 func pfSum(mat [][]int) [][]int {
diff --git a/solutions/13/q1304/solution.go b/solutions/13/q1304/solution.go
index ff3c7a1..d47a641 100644
--- a/solutions/13/q1304/solution.go
+++ b/solutions/13/q1304/solution.go
@@ -1,3 +1,4 @@
+// Package q1304 implements a solution for https://leetcode.com/problems/find-n-unique-integers-sum-up-to-zero/
 package q1304
 
 func sumZero(n int) []int {
diff --git a/solutions/13/q1317/solution.go b/solutions/13/q1317/solution.go
index 623b7ba..676b927 100644
--- a/solutions/13/q1317/solution.go
+++ b/solutions/13/q1317/solution.go
@@ -1,3 +1,4 @@
+// Package q1317 implements a solution for https://leetcode.com/problems/convert-integer-to-the-sum-of-two-no-zero-integers/
 package q1317
 
 func noZero(n int) bool {
diff --git a/solutions/13/q1318/solution.go b/solutions/13/q1318/solution.go
index 34e30f8..74cc7a4 100644
--- a/solutions/13/q1318/solution.go
+++ b/solutions/13/q1318/solution.go
@@ -1,3 +1,4 @@
+// Package q1318 implements a solution for https://leetcode.com/problems/minimum-flips-to-make-a-or-b-equal-to-c/
 package q1318
 
 func minFlips(a int, b int, c int) int {
diff --git a/solutions/13/q1339/solution.go b/solutions/13/q1339/solution.go
index 627f178..1df4106 100644
--- a/solutions/13/q1339/solution.go
+++ b/solutions/13/q1339/solution.go
@@ -1,3 +1,4 @@
+// Package q1339 implements a solution for https://leetcode.com/problems/maximum-product-of-splitted-binary-tree/
 package q1339
 
 type TreeNode struct {
diff --git a/solutions/13/q1351/solution.go b/solutions/13/q1351/solution.go
index 823d8c3..c36e587 100644
--- a/solutions/13/q1351/solution.go
+++ b/solutions/13/q1351/solution.go
@@ -1,3 +1,4 @@
+// Package q1351 implements a solution for https://leetcode.com/problems/count-negative-numbers-in-a-sorted-matrix/
 package q1351
 
 func countNegatives(grid [][]int) int {
diff --git a/solutions/13/q1356/solution.go b/solutions/13/q1356/solution.go
index 4c341b8..3dfa3f9 100644
--- a/solutions/13/q1356/solution.go
+++ b/solutions/13/q1356/solution.go
@@ -1,3 +1,4 @@
+// Package q1356 implements a solution for https://leetcode.com/problems/sort-integers-by-the-number-of-1-bits/
 package q1356
 
 import "slices"
diff --git a/solutions/13/q1365/solution.go b/solutions/13/q1365/solution.go
index cff957e..8d6cc8e 100644
--- a/solutions/13/q1365/solution.go
+++ b/solutions/13/q1365/solution.go
@@ -1,3 +1,4 @@
+// Package q1365 implements a solution for https://leetcode.com/problems/how-many-numbers-are-smaller-than-the-current-number/
 package q1365
 
 import "slices"
diff --git a/solutions/13/q1372/solution.go b/solutions/13/q1372/solution.go
index d2297e2..d67b6ea 100644
--- a/solutions/13/q1372/solution.go
+++ b/solutions/13/q1372/solution.go
@@ -1,3 +1,4 @@
+// Package q1372 implements a solution for https://leetcode.com/problems/longest-zigzag-path-in-a-binary-tree/
 package q1372
 
 type TreeNode struct {
diff --git a/solutions/13/q1382/solution.go b/solutions/13/q1382/solution.go
index 7ae061a..d69c7b4 100644
--- a/solutions/13/q1382/solution.go
+++ b/solutions/13/q1382/solution.go
@@ -1,3 +1,4 @@
+// Package q1382 implements a solution for https://leetcode.com/problems/balance-a-binary-search-tree/
 package q1382
 
 type TreeNode struct {
diff --git a/solutions/13/q1390/solution.go b/solutions/13/q1390/solution.go
index dc3778a..9c3aed1 100644
--- a/solutions/13/q1390/solution.go
+++ b/solutions/13/q1390/solution.go
@@ -1,3 +1,4 @@
+// Package q1390 implements a solution for https://leetcode.com/problems/four-divisors/
 package q1390
 
 import "slices"
diff --git a/solutions/14/q1404/solution.go b/solutions/14/q1404/solution.go
index 41e097c..f63b102 100644
--- a/solutions/14/q1404/solution.go
+++ b/solutions/14/q1404/solution.go
@@ -1,3 +1,4 @@
+// Package q1404 implements a solution for https://leetcode.com/problems/number-of-steps-to-reduce-a-number-in-binary-representation-to-one/
 package q1404
 
 func numSteps(s string) int {
diff --git a/solutions/14/q1411/solution.go b/solutions/14/q1411/solution.go
index d10f409..2f0b158 100644
--- a/solutions/14/q1411/solution.go
+++ b/solutions/14/q1411/solution.go
@@ -1,3 +1,4 @@
+// Package q1411 implements a solution for https://leetcode.com/problems/number-of-ways-to-paint-n-3-grid/
 package q1411
 
 type Color uint8
diff --git a/solutions/14/q1431/solution.go b/solutions/14/q1431/solution.go
index 92b217a..2220de9 100644
--- a/solutions/14/q1431/solution.go
+++ b/solutions/14/q1431/solution.go
@@ -1,3 +1,4 @@
+// Package q1431 implements a solution for https://leetcode.com/problems/kids-with-the-greatest-number-of-candies/
 package q1431
 
 import "slices"
diff --git a/solutions/14/q1437/solution.go b/solutions/14/q1437/solution.go
index 5db904a..6259703 100644
--- a/solutions/14/q1437/solution.go
+++ b/solutions/14/q1437/solution.go
@@ -1,3 +1,4 @@
+// Package q1437 implements a solution for https://leetcode.com/problems/check-if-all-1s-are-at-least-length-k-places-away/
 package q1437
 
 func kLengthApart(nums []int, k int) bool {
diff --git a/solutions/14/q1441/solution.go b/solutions/14/q1441/solution.go
index e46da81..94c1066 100644
--- a/solutions/14/q1441/solution.go
+++ b/solutions/14/q1441/solution.go
@@ -1,3 +1,4 @@
+// Package q1441 implements a solution for https://leetcode.com/problems/build-an-array-with-stack-operations/
 package q1441
 
 const (
diff --git a/solutions/14/q1448/solution.go b/solutions/14/q1448/solution.go
index 1ae93a8..0a1911b 100644
--- a/solutions/14/q1448/solution.go
+++ b/solutions/14/q1448/solution.go
@@ -1,3 +1,4 @@
+// Package q1448 implements a solution for https://leetcode.com/problems/count-good-nodes-in-binary-tree/
 package q1448
 
 import "math"
diff --git a/solutions/14/q1456/solution.go b/solutions/14/q1456/solution.go
index dfa5d6f..6feca68 100644
--- a/solutions/14/q1456/solution.go
+++ b/solutions/14/q1456/solution.go
@@ -1,3 +1,4 @@
+// Package q1456 implements a solution for https://leetcode.com/problems/maximum-number-of-vowels-in-a-substring-of-given-length/
 package q1456
 
 func isVowel(b byte) bool {
diff --git a/solutions/14/q1458/solution.go b/solutions/14/q1458/solution.go
index bc88f4b..9b6bc58 100644
--- a/solutions/14/q1458/solution.go
+++ b/solutions/14/q1458/solution.go
@@ -1,3 +1,4 @@
+// Package q1458 implements a solution for https://leetcode.com/problems/max-dot-product-of-two-subsequences/
 package q1458
 
 import "math"
diff --git a/solutions/14/q1466/solution.go b/solutions/14/q1466/solution.go
index c7968cf..b8f7ce6 100644
--- a/solutions/14/q1466/solution.go
+++ b/solutions/14/q1466/solution.go
@@ -1,3 +1,4 @@
+// Package q1466 implements a solution for https://leetcode.com/problems/reorder-routes-to-make-all-paths-lead-to-the-city-zero/
 package q1466
 
 import "math"
diff --git a/solutions/14/q1470/solution.go b/solutions/14/q1470/solution.go
index d991f04..11af3dd 100644
--- a/solutions/14/q1470/solution.go
+++ b/solutions/14/q1470/solution.go
@@ -1,3 +1,4 @@
+// Package q1470 implements a solution for https://leetcode.com/problems/shuffle-the-array/
 package q1470
 
 func shuffle(nums []int, n int) []int {
diff --git a/solutions/14/q1475/solution.go b/solutions/14/q1475/solution.go
index e1f2e3e..97eba12 100644
--- a/solutions/14/q1475/solution.go
+++ b/solutions/14/q1475/solution.go
@@ -1,3 +1,4 @@
+// Package q1475 implements a solution for https://leetcode.com/problems/final-prices-with-a-special-discount-in-a-shop/
 package q1475
 
 func finalPrices(prices []int) []int {
diff --git a/solutions/14/q1493/solution.go b/solutions/14/q1493/solution.go
index 72196d4..58029a8 100644
--- a/solutions/14/q1493/solution.go
+++ b/solutions/14/q1493/solution.go
@@ -1,3 +1,4 @@
+// Package q1493 implements a solution for https://leetcode.com/problems/longest-subarray-of-1s-after-deleting-one-element/
 package q1493
 
 func longestSubarray(nums []int) int {
diff --git a/solutions/15/q1518/solution.go b/solutions/15/q1518/solution.go
index 62621a7..ab4a679 100644
--- a/solutions/15/q1518/solution.go
+++ b/solutions/15/q1518/solution.go
@@ -1,3 +1,4 @@
+// Package q1518 implements a solution for https://leetcode.com/problems/water-bottles/
 package q1518
 
 func numWaterBottles(numBottles int, numExchange int) int {
diff --git a/solutions/15/q1523/solution.go b/solutions/15/q1523/solution.go
index d1aa683..a7f498f 100644
--- a/solutions/15/q1523/solution.go
+++ b/solutions/15/q1523/solution.go
@@ -1,3 +1,4 @@
+// Package q1523 implements a solution for https://leetcode.com/problems/count-odd-numbers-in-an-interval-range/
 package q1523
 
 func countOdds(low int, high int) int {
diff --git a/solutions/16/q1653/solution.go b/solutions/16/q1653/solution.go
index 5ccfeca..1f5a202 100644
--- a/solutions/16/q1653/solution.go
+++ b/solutions/16/q1653/solution.go
@@ -1,3 +1,4 @@
+// Package q1653 implements a solution for https://leetcode.com/problems/minimum-deletions-to-make-string-balanced/
 package q1653
 
 func minimumDeletions(s string) int {
diff --git a/solutions/16/q1657/solution.go b/solutions/16/q1657/solution.go
index d56a282..181f19f 100644
--- a/solutions/16/q1657/solution.go
+++ b/solutions/16/q1657/solution.go
@@ -1,3 +1,4 @@
+// Package q1657 implements a solution for https://leetcode.com/problems/determine-if-two-strings-are-close/
 package q1657
 
 import "slices"
diff --git a/solutions/16/q1679/solution.go b/solutions/16/q1679/solution.go
index a1fc1a1..d39f560 100644
--- a/solutions/16/q1679/solution.go
+++ b/solutions/16/q1679/solution.go
@@ -1,3 +1,4 @@
+// Package q1679 implements a solution for https://leetcode.com/problems/max-number-of-k-sum-pairs/
 package q1679
 
 import "slices"
diff --git a/solutions/17/q1700/solution.go b/solutions/17/q1700/solution.go
index 7c635a3..57522c1 100644
--- a/solutions/17/q1700/solution.go
+++ b/solutions/17/q1700/solution.go
@@ -1,3 +1,4 @@
+// Package q1700 implements a solution for https://leetcode.com/problems/number-of-students-unable-to-eat-lunch/
 package q1700
 
 func countStudents(students []int, sandwiches []int) int {
diff --git a/solutions/17/q1716/solution.go b/solutions/17/q1716/solution.go
index b91bfee..96fbb04 100644
--- a/solutions/17/q1716/solution.go
+++ b/solutions/17/q1716/solution.go
@@ -1,3 +1,4 @@
+// Package q1716 implements a solution for https://leetcode.com/problems/calculate-money-in-leetcode-bank/
 package q1716
 
 func totalMoney(n int) int {
diff --git a/solutions/17/q1732/solution.go b/solutions/17/q1732/solution.go
index a5232be..9191bb1 100644
--- a/solutions/17/q1732/solution.go
+++ b/solutions/17/q1732/solution.go
@@ -1,3 +1,4 @@
+// Package q1732 implements a solution for https://leetcode.com/problems/find-the-highest-altitude/
 package q1732
 
 func largestAltitude(gain []int) int {
diff --git a/solutions/17/q1768/solution.go b/solutions/17/q1768/solution.go
index a21d28a..aea0995 100644
--- a/solutions/17/q1768/solution.go
+++ b/solutions/17/q1768/solution.go
@@ -1,3 +1,4 @@
+// Package q1768 implements a solution for https://leetcode.com/problems/merge-strings-alternately/
 package q1768
 
 import "strings"
diff --git a/solutions/18/q1877/solution.go b/solutions/18/q1877/solution.go
index 164aafc..485cf68 100644
--- a/solutions/18/q1877/solution.go
+++ b/solutions/18/q1877/solution.go
@@ -1,3 +1,4 @@
+// Package q1877 implements a solution for https://leetcode.com/problems/minimize-maximum-pair-sum-in-array/
 package q1877
 
 import "slices"
diff --git a/solutions/18/q1895/solution.go b/solutions/18/q1895/solution.go
index 28b60a6..1f590db 100644
--- a/solutions/18/q1895/solution.go
+++ b/solutions/18/q1895/solution.go
@@ -1,3 +1,4 @@
+// Package q1895 implements a solution for https://leetcode.com/problems/largest-magic-square/
 package q1895
 
 func isMagicSq(grid [][]int, x, y, w int) bool {
diff --git a/solutions/19/q1925/solution.go b/solutions/19/q1925/solution.go
index aab58a4..ab0968a 100644
--- a/solutions/19/q1925/solution.go
+++ b/solutions/19/q1925/solution.go
@@ -1,3 +1,4 @@
+// Package q1925 implements a solution for https://leetcode.com/problems/count-square-sum-triples/
 package q1925
 
 import "math"
diff --git a/solutions/19/q1926/solution.go b/solutions/19/q1926/solution.go
index 84a4883..f1c1105 100644
--- a/solutions/19/q1926/solution.go
+++ b/solutions/19/q1926/solution.go
@@ -1,3 +1,4 @@
+// Package q1926 implements a solution for https://leetcode.com/problems/nearest-exit-from-entrance-in-maze/
 package q1926
 
 const (
diff --git a/solutions/19/q1929/solution.go b/solutions/19/q1929/solution.go
index 56bc69f..f119157 100644
--- a/solutions/19/q1929/solution.go
+++ b/solutions/19/q1929/solution.go
@@ -1,3 +1,4 @@
+// Package q1929 implements a solution for https://leetcode.com/problems/concatenation-of-array/
 package q1929
 
 func getConcatenation(nums []int) []int {
diff --git a/solutions/19/q1935/solution.go b/solutions/19/q1935/solution.go
index 4d55c0a..42983c6 100644
--- a/solutions/19/q1935/solution.go
+++ b/solutions/19/q1935/solution.go
@@ -1,3 +1,4 @@
+// Package q1935 implements a solution for https://leetcode.com/problems/maximum-number-of-words-you-can-type/
 package q1935
 
 import "strings"
diff --git a/solutions/19/q1970/solution.go b/solutions/19/q1970/solution.go
index 76f2b88..826cbae 100644
--- a/solutions/19/q1970/solution.go
+++ b/solutions/19/q1970/solution.go
@@ -1,3 +1,4 @@
+// Package q1970 implements a solution for https://leetcode.com/problems/last-day-where-you-can-still-cross/
 package q1970
 
 var dirs = [4][2]int{{0, 1}, {0, -1}, {1, 0}, {-1, 0}}
diff --git a/solutions/19/q1975/solution.go b/solutions/19/q1975/solution.go
index 0c576c7..38ebb07 100644
--- a/solutions/19/q1975/solution.go
+++ b/solutions/19/q1975/solution.go
@@ -1,3 +1,4 @@
+// Package q1975 implements a solution for https://leetcode.com/problems/maximum-matrix-sum/
 package q1975
 
 import "math"
diff --git a/solutions/19/q1984/solution.go b/solutions/19/q1984/solution.go
index e13814e..62833d4 100644
--- a/solutions/19/q1984/solution.go
+++ b/solutions/19/q1984/solution.go
@@ -1,3 +1,4 @@
+// Package q1984 implements a solution for https://leetcode.com/problems/minimum-difference-between-highest-and-lowest-of-k-scores/
 package q1984
 
 import (
diff --git a/solutions/2/q200/solution.go b/solutions/2/q200/solution.go
index 9564d9a..f0b0770 100644
--- a/solutions/2/q200/solution.go
+++ b/solutions/2/q200/solution.go
@@ -1,3 +1,4 @@
+// Package q200 implements a solution for https://leetcode.com/problems/number-of-islands/
 package q200
 
 const (
diff --git a/solutions/2/q201/solution.go b/solutions/2/q201/solution.go
index 9324e60..357ed15 100644
--- a/solutions/2/q201/solution.go
+++ b/solutions/2/q201/solution.go
@@ -1,3 +1,4 @@
+// Package q201 implements a solution for https://leetcode.com/problems/bitwise-and-of-numbers-range/
 package q201
 
 func rangeBitwiseAnd(left int, right int) int {
diff --git a/solutions/2/q202/solution.go b/solutions/2/q202/solution.go
index cddb7b8..cf6d3f5 100644
--- a/solutions/2/q202/solution.go
+++ b/solutions/2/q202/solution.go
@@ -1,3 +1,4 @@
+// Package q202 implements a solution for https://leetcode.com/problems/happy-number/
 package q202
 
 type void struct{}
diff --git a/solutions/2/q205/solution.go b/solutions/2/q205/solution.go
index aea8514..9eb99c5 100644
--- a/solutions/2/q205/solution.go
+++ b/solutions/2/q205/solution.go
@@ -1,3 +1,4 @@
+// Package q205 implements a solution for https://leetcode.com/problems/isomorphic-strings/
 package q205
 
 func isIsomorphic(s string, t string) bool {
diff --git a/solutions/2/q206/solution.go b/solutions/2/q206/solution.go
index b6001b8..c8bcf7b 100644
--- a/solutions/2/q206/solution.go
+++ b/solutions/2/q206/solution.go
@@ -1,3 +1,4 @@
+// Package q206 implements a solution for https://leetcode.com/problems/reverse-linked-list/
 package q206
 
 type ListNode struct {
diff --git a/solutions/2/q207/solution.go b/solutions/2/q207/solution.go
index a7a223e..2eb7e6e 100644
--- a/solutions/2/q207/solution.go
+++ b/solutions/2/q207/solution.go
@@ -1,3 +1,4 @@
+// Package q207 implements a solution for https://leetcode.com/problems/course-schedule/
 package q207
 
 func canFinish(numCourses int, prerequisites [][]int) bool {
diff --git a/solutions/2/q208/solution.go b/solutions/2/q208/solution.go
index 87c3ca2..16187ef 100644
--- a/solutions/2/q208/solution.go
+++ b/solutions/2/q208/solution.go
@@ -1,3 +1,4 @@
+// Package q208 implements a solution for https://leetcode.com/problems/implement-trie-prefix-tree/
 package q208
 
 type tNode struct {
diff --git a/solutions/2/q209/solution.go b/solutions/2/q209/solution.go
index 1c4d4bf..4a28932 100644
--- a/solutions/2/q209/solution.go
+++ b/solutions/2/q209/solution.go
@@ -1,3 +1,4 @@
+// Package q209 implements a solution for https://leetcode.com/problems/minimum-size-subarray-sum/
 package q209
 
 import "math"
diff --git a/solutions/2/q210/solution.go b/solutions/2/q210/solution.go
index 2d745cd..40d3fbb 100644
--- a/solutions/2/q210/solution.go
+++ b/solutions/2/q210/solution.go
@@ -1,3 +1,4 @@
+// Package q210 implements a solution for https://leetcode.com/problems/course-schedule-ii/
 package q210
 
 func findOrder(numCourses int, prerequisites [][]int) []int {
diff --git a/solutions/2/q211/solution.go b/solutions/2/q211/solution.go
index cc453a2..362b94d 100644
--- a/solutions/2/q211/solution.go
+++ b/solutions/2/q211/solution.go
@@ -1,3 +1,4 @@
+// Package q211 implements a solution for https://leetcode.com/problems/design-add-and-search-words-data-structure/
 package q211
 
 type TrieNode struct {
diff --git a/solutions/2/q212/solution.go b/solutions/2/q212/solution.go
index 665cd7b..c84d39f 100644
--- a/solutions/2/q212/solution.go
+++ b/solutions/2/q212/solution.go
@@ -1,3 +1,4 @@
+// Package q212 implements a solution for https://leetcode.com/problems/word-search-ii/
 package q212
 
 type TrieNode struct {
diff --git a/solutions/2/q215/solution.go b/solutions/2/q215/solution.go
index 41c54d3..2ed0f25 100644
--- a/solutions/2/q215/solution.go
+++ b/solutions/2/q215/solution.go
@@ -1,3 +1,4 @@
+// Package q215 implements a solution for https://leetcode.com/problems/kth-largest-element-in-an-array/
 package q215
 
 func findKthLargest(nums []int, k int) int {
diff --git a/solutions/2/q216/solution.go b/solutions/2/q216/solution.go
index bab5103..f68fc83 100644
--- a/solutions/2/q216/solution.go
+++ b/solutions/2/q216/solution.go
@@ -1,3 +1,4 @@
+// Package q216 implements a solution for https://leetcode.com/problems/combination-sum-iii/
 package q216
 
 // k numbers sum up to n
diff --git a/solutions/2/q219/solution.go b/solutions/2/q219/solution.go
index 86b96d8..b1d8ebf 100644
--- a/solutions/2/q219/solution.go
+++ b/solutions/2/q219/solution.go
@@ -1,3 +1,4 @@
+// Package q219 implements a solution for https://leetcode.com/problems/contains-duplicate-ii/
 package q219
 
 func containsNearbyDuplicate(nums []int, k int) bool {
diff --git a/solutions/2/q221/solution.go b/solutions/2/q221/solution.go
index f08d92a..9d35758 100644
--- a/solutions/2/q221/solution.go
+++ b/solutions/2/q221/solution.go
@@ -1,3 +1,4 @@
+// Package q221 implements a solution for https://leetcode.com/problems/maximal-square/
 package q221
 
 func maximalSquare(matrix [][]byte) int {
diff --git a/solutions/2/q222/solution.go b/solutions/2/q222/solution.go
index a1dfc4e..2f11240 100644
--- a/solutions/2/q222/solution.go
+++ b/solutions/2/q222/solution.go
@@ -1,3 +1,4 @@
+// Package q222 implements a solution for https://leetcode.com/problems/count-complete-tree-nodes/
 package q222
 
 type TreeNode struct {
diff --git a/solutions/2/q226/solution.go b/solutions/2/q226/solution.go
index 0abc04f..2634f29 100644
--- a/solutions/2/q226/solution.go
+++ b/solutions/2/q226/solution.go
@@ -1,3 +1,4 @@
+// Package q226 implements a solution for https://leetcode.com/problems/invert-binary-tree/
 package q226
 
 type TreeNode struct {
diff --git a/solutions/2/q228/solution.go b/solutions/2/q228/solution.go
index 15e303f..aa2ebf9 100644
--- a/solutions/2/q228/solution.go
+++ b/solutions/2/q228/solution.go
@@ -1,3 +1,4 @@
+// Package q228 implements a solution for https://leetcode.com/problems/summary-ranges/
 package q228
 
 import (
diff --git a/solutions/2/q230/solution.go b/solutions/2/q230/solution.go
index 6f4e362..ef14aef 100644
--- a/solutions/2/q230/solution.go
+++ b/solutions/2/q230/solution.go
@@ -1,3 +1,4 @@
+// Package q230 implements a solution for https://leetcode.com/problems/kth-smallest-element-in-a-bst/
 package q230
 
 type TreeNode struct {
diff --git a/solutions/2/q232/solution.go b/solutions/2/q232/solution.go
index 35bc078..72ed5f6 100644
--- a/solutions/2/q232/solution.go
+++ b/solutions/2/q232/solution.go
@@ -1,3 +1,4 @@
+// Package q232 implements a solution for https://leetcode.com/problems/implement-queue-using-stacks/
 package q232
 
 type MyQueue struct{ data []int }
diff --git a/solutions/2/q236/solution.go b/solutions/2/q236/solution.go
index add64ff..977063f 100644
--- a/solutions/2/q236/solution.go
+++ b/solutions/2/q236/solution.go
@@ -1,3 +1,4 @@
+// Package q236 implements a solution for https://leetcode.com/problems/lowest-common-ancestor-of-a-binary-tree/
 package q236
 
 type TreeNode struct {
diff --git a/solutions/2/q238/solution.go b/solutions/2/q238/solution.go
index 1bb552f..0f06db5 100644
--- a/solutions/2/q238/solution.go
+++ b/solutions/2/q238/solution.go
@@ -1,3 +1,4 @@
+// Package q238 implements a solution for https://leetcode.com/problems/product-of-array-except-self/
 package q238
 
 func productExceptSelf(nums []int) []int {
diff --git a/solutions/2/q242/solution.go b/solutions/2/q242/solution.go
index fe7f20d..8186ea2 100644
--- a/solutions/2/q242/solution.go
+++ b/solutions/2/q242/solution.go
@@ -1,3 +1,4 @@
+// Package q242 implements a solution for https://leetcode.com/problems/valid-anagram/
 package q242
 
 func isAnagram(s string, t string) bool {
diff --git a/solutions/2/q283/solution.go b/solutions/2/q283/solution.go
index a8f1268..412e3f3 100644
--- a/solutions/2/q283/solution.go
+++ b/solutions/2/q283/solution.go
@@ -1,3 +1,4 @@
+// Package q283 implements a solution for https://leetcode.com/problems/move-zeroes/
 package q283
 
 func moveZeroes(nums []int) {
diff --git a/solutions/2/q289/solution.go b/solutions/2/q289/solution.go
index e8d0ed9..e1c628f 100644
--- a/solutions/2/q289/solution.go
+++ b/solutions/2/q289/solution.go
@@ -1,3 +1,4 @@
+// Package q289 implements a solution for https://leetcode.com/problems/game-of-life/
 package q289
 
 func countLiveNeighbors(board [][]int, row, col int) int {
diff --git a/solutions/2/q290/solution.go b/solutions/2/q290/solution.go
index 8f29154..467ad5a 100644
--- a/solutions/2/q290/solution.go
+++ b/solutions/2/q290/solution.go
@@ -1,3 +1,4 @@
+// Package q290 implements a solution for https://leetcode.com/problems/word-pattern/
 package q290
 
 import "strings"
diff --git a/solutions/20/q2011/solution.go b/solutions/20/q2011/solution.go
index 80cc202..b4ba65b 100644
--- a/solutions/20/q2011/solution.go
+++ b/solutions/20/q2011/solution.go
@@ -1,3 +1,4 @@
+// Package q2011 implements a solution for https://leetcode.com/problems/final-value-of-variable-after-performing-operations/
 package q2011
 
 func finalValueAfterOperations(operations []string) int {
diff --git a/solutions/20/q2073/solution.go b/solutions/20/q2073/solution.go
index 9479103..3d1d258 100644
--- a/solutions/20/q2073/solution.go
+++ b/solutions/20/q2073/solution.go
@@ -1,3 +1,4 @@
+// Package q2073 implements a solution for https://leetcode.com/problems/time-needed-to-buy-tickets/
 package q2073
 
 func timeRequiredToBuy(tickets []int, k int) int {
diff --git a/solutions/20/q2095/solution.go b/solutions/20/q2095/solution.go
index a425c6d..1d06dcb 100644
--- a/solutions/20/q2095/solution.go
+++ b/solutions/20/q2095/solution.go
@@ -1,3 +1,4 @@
+// Package q2095 implements a solution for https://leetcode.com/problems/delete-the-middle-node-of-a-linked-list/
 package q2095
 
 type ListNode struct {
diff --git a/solutions/21/q2130/solution.go b/solutions/21/q2130/solution.go
index 9f9ecd2..24a0f43 100644
--- a/solutions/21/q2130/solution.go
+++ b/solutions/21/q2130/solution.go
@@ -1,3 +1,4 @@
+// Package q2130 implements a solution for https://leetcode.com/problems/maximum-twin-sum-of-a-linked-list/
 package q2130
 
 import "math"
diff --git a/solutions/21/q2154/solution.go b/solutions/21/q2154/solution.go
index 442e7ec..00a1b96 100644
--- a/solutions/21/q2154/solution.go
+++ b/solutions/21/q2154/solution.go
@@ -1,3 +1,4 @@
+// Package q2154 implements a solution for https://leetcode.com/problems/keep-multiplying-found-values-by-two/
 package q2154
 
 import "slices"
diff --git a/solutions/21/q2169/solution.go b/solutions/21/q2169/solution.go
index 4d5cacc..0170e31 100644
--- a/solutions/21/q2169/solution.go
+++ b/solutions/21/q2169/solution.go
@@ -1,3 +1,4 @@
+// Package q2169 implements a solution for https://leetcode.com/problems/count-operations-to-obtain-zero/
 package q2169
 
 func countOperations(num1 int, num2 int) int {
diff --git a/solutions/22/q2215/solution.go b/solutions/22/q2215/solution.go
index 50b96aa..eea15fd 100644
--- a/solutions/22/q2215/solution.go
+++ b/solutions/22/q2215/solution.go
@@ -1,3 +1,4 @@
+// Package q2215 implements a solution for https://leetcode.com/problems/find-the-difference-of-two-arrays/
 package q2215
 
 import "slices"
diff --git a/solutions/22/q2273/solution.go b/solutions/22/q2273/solution.go
index 6cd019a..2abc8e0 100644
--- a/solutions/22/q2273/solution.go
+++ b/solutions/22/q2273/solution.go
@@ -1,3 +1,4 @@
+// Package q2273 implements a solution for https://leetcode.com/problems/find-resultant-array-after-removing-anagrams/
 package q2273
 
 var buf = [26]int{}
diff --git a/solutions/23/q2300/solution.go b/solutions/23/q2300/solution.go
index c193bef..967b687 100644
--- a/solutions/23/q2300/solution.go
+++ b/solutions/23/q2300/solution.go
@@ -1,3 +1,4 @@
+// Package q2300 implements a solution for https://leetcode.com/problems/successful-pairs-of-spells-and-potions/
 package q2300
 
 import "slices"
diff --git a/solutions/23/q2336/solution.go b/solutions/23/q2336/solution.go
index 0420346..837edb1 100644
--- a/solutions/23/q2336/solution.go
+++ b/solutions/23/q2336/solution.go
@@ -1,3 +1,4 @@
+// Package q2336 implements a solution for https://leetcode.com/problems/smallest-number-in-infinite-set/
 package q2336
 
 import "container/heap"
diff --git a/solutions/23/q2352/solution.go b/solutions/23/q2352/solution.go
index bb02781..8c31656 100644
--- a/solutions/23/q2352/solution.go
+++ b/solutions/23/q2352/solution.go
@@ -1,3 +1,4 @@
+// Package q2352 implements a solution for https://leetcode.com/problems/equal-row-and-column-pairs/
 package q2352
 
 import "strings"
diff --git a/solutions/23/q2390/solution.go b/solutions/23/q2390/solution.go
index 44f44ac..e85843b 100644
--- a/solutions/23/q2390/solution.go
+++ b/solutions/23/q2390/solution.go
@@ -1,3 +1,4 @@
+// Package q2390 implements a solution for https://leetcode.com/problems/removing-stars-from-a-string/
 package q2390
 
 func removeStars(s string) string {
diff --git a/solutions/24/q2402/solution.go b/solutions/24/q2402/solution.go
index 526ca20..bf223b4 100644
--- a/solutions/24/q2402/solution.go
+++ b/solutions/24/q2402/solution.go
@@ -1,3 +1,4 @@
+// Package q2402 implements a solution for https://leetcode.com/problems/meeting-rooms-iii/
 package q2402
 
 import (
diff --git a/solutions/24/q2405/solution.go b/solutions/24/q2405/solution.go
index 64ab052..8dff2f1 100644
--- a/solutions/24/q2405/solution.go
+++ b/solutions/24/q2405/solution.go
@@ -1,3 +1,4 @@
+// Package q2405 implements a solution for https://leetcode.com/problems/optimal-partition-of-string/
 package q2405
 
 func partitionString(s string) int {
diff --git a/solutions/24/q2462/solution.go b/solutions/24/q2462/solution.go
index 2c86c50..eda9fe9 100644
--- a/solutions/24/q2462/solution.go
+++ b/solutions/24/q2462/solution.go
@@ -1,3 +1,4 @@
+// Package q2462 implements a solution for https://leetcode.com/problems/total-cost-to-hire-k-workers/
 package q2462
 
 import "container/heap"
diff --git a/solutions/24/q2483/solution.go b/solutions/24/q2483/solution.go
index 2e6b54e..e32041f 100644
--- a/solutions/24/q2483/solution.go
+++ b/solutions/24/q2483/solution.go
@@ -1,3 +1,4 @@
+// Package q2483 implements a solution for https://leetcode.com/problems/minimum-penalty-for-a-shop/
 package q2483
 
 func bestClosingTime(customers string) int {
diff --git a/solutions/25/q2542/solution.go b/solutions/25/q2542/solution.go
index 41dbe65..4dc3f2a 100644
--- a/solutions/25/q2542/solution.go
+++ b/solutions/25/q2542/solution.go
@@ -1,3 +1,4 @@
+// Package q2542 implements a solution for https://leetcode.com/problems/maximum-subsequence-score/
 package q2542
 
 import (
diff --git a/solutions/29/q2943/solution.go b/solutions/29/q2943/solution.go
index c2dbfba..ce0eaa4 100644
--- a/solutions/29/q2943/solution.go
+++ b/solutions/29/q2943/solution.go
@@ -1,3 +1,4 @@
+// Package q2943 implements a solution for https://leetcode.com/problems/maximize-area-of-square-hole-in-grid/
 package q2943
 
 import "slices"
diff --git a/solutions/29/q2975/solution.go b/solutions/29/q2975/solution.go
index 9acd316..12b4777 100644
--- a/solutions/29/q2975/solution.go
+++ b/solutions/29/q2975/solution.go
@@ -1,3 +1,4 @@
+// Package q2975 implements a solution for https://leetcode.com/problems/maximum-square-area-by-removing-fences-from-a-field/
 package q2975
 
 import "slices"
diff --git a/solutions/29/q2976/solution.go b/solutions/29/q2976/solution.go
index d9ecf39..23feeb5 100644
--- a/solutions/29/q2976/solution.go
+++ b/solutions/29/q2976/solution.go
@@ -1,3 +1,4 @@
+// Package q2976 implements a solution for https://leetcode.com/problems/minimum-cost-to-convert-string-i/
 package q2976
 
 import "math"
diff --git a/solutions/29/q2977/solution.go b/solutions/29/q2977/solution.go
index 0dad56b..7556932 100644
--- a/solutions/29/q2977/solution.go
+++ b/solutions/29/q2977/solution.go
@@ -1,3 +1,4 @@
+// Package q2977 implements a solution for https://leetcode.com/problems/minimum-cost-to-convert-string-ii/
 package q2977
 
 import "math"
diff --git a/solutions/3/q300/solution.go b/solutions/3/q300/solution.go
index badfa9f..214b970 100644
--- a/solutions/3/q300/solution.go
+++ b/solutions/3/q300/solution.go
@@ -1,3 +1,4 @@
+// Package q300 implements a solution for https://leetcode.com/problems/longest-increasing-subsequence/
 package q300
 
 func lengthOfLIS(nums []int) int {
diff --git a/solutions/3/q322/solution.go b/solutions/3/q322/solution.go
index 81e85af..c9db5c1 100644
--- a/solutions/3/q322/solution.go
+++ b/solutions/3/q322/solution.go
@@ -1,3 +1,4 @@
+// Package q322 implements a solution for https://leetcode.com/problems/coin-change/
 package q322
 
 // Note: The cache size only needs to be min(max(coins), amount).
diff --git a/solutions/3/q328/solution.go b/solutions/3/q328/solution.go
index 0579a9e..6b73989 100644
--- a/solutions/3/q328/solution.go
+++ b/solutions/3/q328/solution.go
@@ -1,3 +1,4 @@
+// Package q328 implements a solution for https://leetcode.com/problems/odd-even-linked-list/
 package q328
 
 type ListNode struct {
diff --git a/solutions/3/q334/solution.go b/solutions/3/q334/solution.go
index 2b0d9c1..db15667 100644
--- a/solutions/3/q334/solution.go
+++ b/solutions/3/q334/solution.go
@@ -1,3 +1,4 @@
+// Package q334 implements a solution for https://leetcode.com/problems/increasing-triplet-subsequence/
 package q334
 
 import "math"
diff --git a/solutions/3/q338/solution.go b/solutions/3/q338/solution.go
index cba325d..6003dd6 100644
--- a/solutions/3/q338/solution.go
+++ b/solutions/3/q338/solution.go
@@ -1,3 +1,4 @@
+// Package q338 implements a solution for https://leetcode.com/problems/counting-bits/
 package q338
 
 func countBits(n int) []int {
diff --git a/solutions/3/q345/solution.go b/solutions/3/q345/solution.go
index 3f63373..b2db539 100644
--- a/solutions/3/q345/solution.go
+++ b/solutions/3/q345/solution.go
@@ -1,3 +1,4 @@
+// Package q345 implements a solution for https://leetcode.com/problems/reverse-vowels-of-a-string/
 package q345
 
 func isVowel(b byte) bool {
diff --git a/solutions/3/q373/solution.go b/solutions/3/q373/solution.go
index b07158c..a232c7b 100644
--- a/solutions/3/q373/solution.go
+++ b/solutions/3/q373/solution.go
@@ -1,3 +1,4 @@
+// Package q373 implements a solution for https://leetcode.com/problems/find-k-pairs-with-smallest-sums/
 package q373
 
 import "container/heap"
diff --git a/solutions/3/q374/solution.go b/solutions/3/q374/solution.go
index 32f9708..d665336 100644
--- a/solutions/3/q374/solution.go
+++ b/solutions/3/q374/solution.go
@@ -1,3 +1,4 @@
+// Package q374 implements a solution for https://leetcode.com/problems/guess-number-higher-or-lower/
 package q374
 
 func guess(num int) int { panic("stub") }
diff --git a/solutions/3/q380/solution.go b/solutions/3/q380/solution.go
index 685279e..732ee0c 100644
--- a/solutions/3/q380/solution.go
+++ b/solutions/3/q380/solution.go
@@ -1,3 +1,4 @@
+// Package q380 implements a solution for https://leetcode.com/problems/insert-delete-getrandom-o1/
 package q380
 
 import "math/rand"
diff --git a/solutions/3/q383/solution.go b/solutions/3/q383/solution.go
index 8e6f390..34d1fce 100644
--- a/solutions/3/q383/solution.go
+++ b/solutions/3/q383/solution.go
@@ -1,3 +1,4 @@
+// Package q383 implements a solution for https://leetcode.com/problems/ransom-note/
 package q383
 
 func canConstruct(ransomNote string, magazine string) bool {
diff --git a/solutions/3/q394/solution.go b/solutions/3/q394/solution.go
index 3346adf..8a2ed1a 100644
--- a/solutions/3/q394/solution.go
+++ b/solutions/3/q394/solution.go
@@ -1,3 +1,4 @@
+// Package q394 implements a solution for https://leetcode.com/problems/decode-string/
 package q394
 
 import "strings"
diff --git a/solutions/3/q399/solution.go b/solutions/3/q399/solution.go
index bc909ba..5d40245 100644
--- a/solutions/3/q399/solution.go
+++ b/solutions/3/q399/solution.go
@@ -1,3 +1,4 @@
+// Package q399 implements a solution for https://leetcode.com/problems/evaluate-division/
 package q399
 
 func calcEquation(equations [][]string, values []float64, queries [][]string) []float64 {
diff --git a/solutions/30/q3005/solution.go b/solutions/30/q3005/solution.go
index a346c41..ae06adc 100644
--- a/solutions/30/q3005/solution.go
+++ b/solutions/30/q3005/solution.go
@@ -1,3 +1,4 @@
+// Package q3005 implements a solution for https://leetcode.com/problems/count-elements-with-maximum-frequency/
 package q3005
 
 import "slices"
diff --git a/solutions/30/q3010/solution.go b/solutions/30/q3010/solution.go
index 7a4bcf4..6f564c5 100644
--- a/solutions/30/q3010/solution.go
+++ b/solutions/30/q3010/solution.go
@@ -1,3 +1,4 @@
+// Package q3010 implements a solution for https://leetcode.com/problems/divide-an-array-into-subarrays-with-minimum-cost-i/
 package q3010
 
 func minimumCost(nums []int) int {
diff --git a/solutions/30/q3013/solution.go b/solutions/30/q3013/solution.go
index da15aff..7bce10d 100644
--- a/solutions/30/q3013/solution.go
+++ b/solutions/30/q3013/solution.go
@@ -1,3 +1,4 @@
+// Package q3013 implements a solution for https://leetcode.com/problems/divide-an-array-into-subarrays-with-minimum-cost-ii/
 package q3013
 
 import (
diff --git a/solutions/30/q3047/solution.go b/solutions/30/q3047/solution.go
index 754d6aa..e772cb9 100644
--- a/solutions/30/q3047/solution.go
+++ b/solutions/30/q3047/solution.go
@@ -1,3 +1,4 @@
+// Package q3047 implements a solution for https://leetcode.com/problems/find-the-largest-area-of-square-inside-two-rectangles/
 package q3047
 
 import "slices"
diff --git a/solutions/30/q3074/solution.go b/solutions/30/q3074/solution.go
index 309877c..336c63f 100644
--- a/solutions/30/q3074/solution.go
+++ b/solutions/30/q3074/solution.go
@@ -1,3 +1,4 @@
+// Package q3074 implements a solution for https://leetcode.com/problems/apple-redistribution-into-boxes/
 package q3074
 
 import "slices"
diff --git a/solutions/30/q3075/solution.go b/solutions/30/q3075/solution.go
index e319b8d..d7c9ae4 100644
--- a/solutions/30/q3075/solution.go
+++ b/solutions/30/q3075/solution.go
@@ -1,3 +1,4 @@
+// Package q3075 implements a solution for https://leetcode.com/problems/maximize-happiness-of-selected-children/
 package q3075
 
 import "slices"
diff --git a/solutions/31/q3190/solution.go b/solutions/31/q3190/solution.go
index c42a859..64b4bce 100644
--- a/solutions/31/q3190/solution.go
+++ b/solutions/31/q3190/solution.go
@@ -1,3 +1,4 @@
+// Package q3190 implements a solution for https://leetcode.com/problems/find-minimum-operations-to-make-all-elements-divisible-by-three/
 package q3190
 
 func minimumOperations(nums []int) int {
diff --git a/solutions/32/q3289/solution.go b/solutions/32/q3289/solution.go
index 1bde672..7ddd4cf 100644
--- a/solutions/32/q3289/solution.go
+++ b/solutions/32/q3289/solution.go
@@ -1,3 +1,4 @@
+// Package q3289 implements a solution for https://leetcode.com/problems/the-two-sneaky-numbers-of-digitville/
 package q3289
 
 func getSneakyNumbers(nums []int) []int {
diff --git a/solutions/33/q3314/solution.go b/solutions/33/q3314/solution.go
index 71dd068..c080b84 100644
--- a/solutions/33/q3314/solution.go
+++ b/solutions/33/q3314/solution.go
@@ -1,3 +1,4 @@
+// Package q3314 implements a solution for https://leetcode.com/problems/construct-the-minimum-bitwise-array-i/
 package q3314
 
 func minBitwiseArray(nums []int) []int {
diff --git a/solutions/33/q3315/solution.go b/solutions/33/q3315/solution.go
index 19ac8ed..f2295bc 100644
--- a/solutions/33/q3315/solution.go
+++ b/solutions/33/q3315/solution.go
@@ -1,3 +1,4 @@
+// Package q3315 implements a solution for https://leetcode.com/problems/construct-the-minimum-bitwise-array-ii/
 package q3315
 
 func minBitwiseArray(nums []int) []int {
diff --git a/solutions/33/q3318/solution.go b/solutions/33/q3318/solution.go
index b9820a6..bb63ea3 100644
--- a/solutions/33/q3318/solution.go
+++ b/solutions/33/q3318/solution.go
@@ -1,3 +1,4 @@
+// Package q3318 implements a solution for https://leetcode.com/problems/find-x-sum-of-all-k-long-subarrays-i/
 package q3318
 
 import "slices"
diff --git a/solutions/33/q3349/solution.go b/solutions/33/q3349/solution.go
index cac3e32..9959b70 100644
--- a/solutions/33/q3349/solution.go
+++ b/solutions/33/q3349/solution.go
@@ -1,3 +1,4 @@
+// Package q3349 implements a solution for https://leetcode.com/problems/adjacent-increasing-subarrays-detection-i/
 package q3349
 
 func hasIncreasingSubarrays(nums []int, k int) bool {
diff --git a/solutions/33/q3354/solution.go b/solutions/33/q3354/solution.go
index 9a6d784..518988e 100644
--- a/solutions/33/q3354/solution.go
+++ b/solutions/33/q3354/solution.go
@@ -1,3 +1,4 @@
+// Package q3354 implements a solution for https://leetcode.com/problems/make-array-elements-equal-to-zero/
 package q3354
 
 func countValidSelections(nums []int) int {
diff --git a/solutions/33/q3370/solution.go b/solutions/33/q3370/solution.go
index 3554be8..7774c71 100644
--- a/solutions/33/q3370/solution.go
+++ b/solutions/33/q3370/solution.go
@@ -1,3 +1,4 @@
+// Package q3370 implements a solution for https://leetcode.com/problems/smallest-number-with-all-set-bits/
 package q3370
 
 func smallestNumber(n int) int {
diff --git a/solutions/33/q3379/solution.go b/solutions/33/q3379/solution.go
index 14a4f99..2eb6072 100644
--- a/solutions/33/q3379/solution.go
+++ b/solutions/33/q3379/solution.go
@@ -1,3 +1,4 @@
+// Package q3379 implements a solution for https://leetcode.com/problems/transformed-array/
 package q3379
 
 func constructTransformedArray(nums []int) []int {
diff --git a/solutions/34/q3432/solution.go b/solutions/34/q3432/solution.go
index b59db2c..eadb71d 100644
--- a/solutions/34/q3432/solution.go
+++ b/solutions/34/q3432/solution.go
@@ -1,3 +1,4 @@
+// Package q3432 implements a solution for https://leetcode.com/problems/count-partitions-with-even-sum-difference/
 package q3432
 
 func countPartitions(nums []int) int {
diff --git a/solutions/34/q3453/solution.go b/solutions/34/q3453/solution.go
index 75c5320..2ec0de0 100644
--- a/solutions/34/q3453/solution.go
+++ b/solutions/34/q3453/solution.go
@@ -1,3 +1,4 @@
+// Package q3453 implements a solution for https://leetcode.com/problems/separate-squares-i/
 package q3453
 
 import (
diff --git a/solutions/34/q3454/solution.go b/solutions/34/q3454/solution.go
index a9c67d5..76a3fc1 100644
--- a/solutions/34/q3454/solution.go
+++ b/solutions/34/q3454/solution.go
@@ -1,3 +1,4 @@
+// Package q3454 implements a solution for https://leetcode.com/problems/separate-squares-ii/
 package q3454
 
 import (
diff --git a/solutions/34/q3461/solution.go b/solutions/34/q3461/solution.go
index a3b7f75..56d7aed 100644
--- a/solutions/34/q3461/solution.go
+++ b/solutions/34/q3461/solution.go
@@ -1,3 +1,4 @@
+// Package q3461 implements a solution for https://leetcode.com/problems/check-if-digits-are-equal-in-string-after-operations-i/
 package q3461
 
 func hasSameDigits(s string) bool {
diff --git a/solutions/35/q3507/solution.go b/solutions/35/q3507/solution.go
index dd3aa0b..8b13c95 100644
--- a/solutions/35/q3507/solution.go
+++ b/solutions/35/q3507/solution.go
@@ -1,3 +1,4 @@
+// Package q3507 implements a solution for https://leetcode.com/problems/minimum-pair-removal-to-sort-array-i/
 package q3507
 
 import "math"
diff --git a/solutions/35/q3510/solution.go b/solutions/35/q3510/solution.go
index 69e74a3..37299ef 100644
--- a/solutions/35/q3510/solution.go
+++ b/solutions/35/q3510/solution.go
@@ -1,3 +1,4 @@
+// Package q3510 implements a solution for https://leetcode.com/problems/minimum-pair-removal-to-sort-array-ii/
 package q3510
 
 import "container/heap"
diff --git a/solutions/35/q3512/solution.go b/solutions/35/q3512/solution.go
index 8be2750..a84b004 100644
--- a/solutions/35/q3512/solution.go
+++ b/solutions/35/q3512/solution.go
@@ -1,3 +1,4 @@
+// Package q3512 implements a solution for https://leetcode.com/problems/minimum-operations-to-make-array-sum-divisible-by-k/
 package q3512
 
 func minOperations(nums []int, k int) int {
diff --git a/solutions/35/q3516/solution.go b/solutions/35/q3516/solution.go
index d931850..ddb1ec9 100644
--- a/solutions/35/q3516/solution.go
+++ b/solutions/35/q3516/solution.go
@@ -1,3 +1,4 @@
+// Package q3516 implements a solution for https://leetcode.com/problems/find-closest-person/
 package q3516
 
 func abs(n int) int {
diff --git a/solutions/35/q3541/solution.go b/solutions/35/q3541/solution.go
index fab5b46..26adc0b 100644
--- a/solutions/35/q3541/solution.go
+++ b/solutions/35/q3541/solution.go
@@ -1,3 +1,4 @@
+// Package q3541 implements a solution for https://leetcode.com/problems/find-most-frequent-vowel-and-consonant/
 package q3541
 
 func maxFreqSum(s string) int {
diff --git a/solutions/36/q3606/solution.go b/solutions/36/q3606/solution.go
index f251ab2..e762f01 100644
--- a/solutions/36/q3606/solution.go
+++ b/solutions/36/q3606/solution.go
@@ -1,3 +1,4 @@
+// Package q3606 implements a solution for https://leetcode.com/problems/coupon-code-validator/
 package q3606
 
 import (
diff --git a/solutions/36/q3634/solution.go b/solutions/36/q3634/solution.go
index f29eed2..357a688 100644
--- a/solutions/36/q3634/solution.go
+++ b/solutions/36/q3634/solution.go
@@ -1,3 +1,4 @@
+// Package q3634 implements a solution for https://leetcode.com/problems/minimum-removals-to-balance-array/
 package q3634
 
 import "slices"
diff --git a/solutions/36/q3637/solution.go b/solutions/36/q3637/solution.go
index 4774a6a..3c8e02f 100644
--- a/solutions/36/q3637/solution.go
+++ b/solutions/36/q3637/solution.go
@@ -1,3 +1,4 @@
+// Package q3637 implements a solution for https://leetcode.com/problems/trionic-array-i/
 package q3637
 
 func isTrionic(nums []int) bool {
diff --git a/solutions/36/q3640/solution.go b/solutions/36/q3640/solution.go
index b865f6d..34a7b4a 100644
--- a/solutions/36/q3640/solution.go
+++ b/solutions/36/q3640/solution.go
@@ -1,3 +1,4 @@
+// Package q3640 implements a solution for https://leetcode.com/problems/trionic-array-ii/
 package q3640
 
 import "math"
diff --git a/solutions/36/q3650/solution.go b/solutions/36/q3650/solution.go
index d3c24a3..f7dfbba 100644
--- a/solutions/36/q3650/solution.go
+++ b/solutions/36/q3650/solution.go
@@ -1,3 +1,4 @@
+// Package q3650 implements a solution for https://leetcode.com/problems/minimum-cost-path-with-edge-reversals/
 package q3650
 
 func minCost(n int, edges [][]int) int {
diff --git a/solutions/36/q3651/solution.go b/solutions/36/q3651/solution.go
index 484d2c2..7222dbf 100644
--- a/solutions/36/q3651/solution.go
+++ b/solutions/36/q3651/solution.go
@@ -1,3 +1,4 @@
+// Package q3651 implements a solution for https://leetcode.com/problems/minimum-cost-path-with-teleportations/
 package q3651
 
 import (
diff --git a/solutions/37/q3713/solution.go b/solutions/37/q3713/solution.go
index 19f429f..d5d0a41 100644
--- a/solutions/37/q3713/solution.go
+++ b/solutions/37/q3713/solution.go
@@ -1,3 +1,4 @@
+// Package q3713 implements a solution for https://leetcode.com/problems/longest-balanced-substring-i/
 package q3713
 
 func longestBalanced(s string) int {
diff --git a/solutions/37/q3714/solution.go b/solutions/37/q3714/solution.go
index 7825100..b9267bd 100644
--- a/solutions/37/q3714/solution.go
+++ b/solutions/37/q3714/solution.go
@@ -1,3 +1,4 @@
+// Package q3714 implements a solution for https://leetcode.com/problems/longest-balanced-substring-ii/
 package q3714
 
 func longestBalanced(s string) int {
diff --git a/solutions/37/q3719/solution.go b/solutions/37/q3719/solution.go
index 4a6f3e7..8deffe0 100644
--- a/solutions/37/q3719/solution.go
+++ b/solutions/37/q3719/solution.go
@@ -1,3 +1,4 @@
+// Package q3719 implements a solution for https://leetcode.com/problems/longest-balanced-subarray-i/
 package q3719
 
 var seen [6000]bool
diff --git a/solutions/4/q401/solution.go b/solutions/4/q401/solution.go
index 2361179..40999df 100644
--- a/solutions/4/q401/solution.go
+++ b/solutions/4/q401/solution.go
@@ -1,3 +1,4 @@
+// Package q401 implements a solution for https://leetcode.com/problems/binary-watch/
 package q401
 
 import "fmt"
diff --git a/solutions/4/q427/solution.go b/solutions/4/q427/solution.go
index 069753b..654bbcf 100644
--- a/solutions/4/q427/solution.go
+++ b/solutions/4/q427/solution.go
@@ -1,3 +1,4 @@
+// Package q427 implements a solution for https://leetcode.com/problems/construct-quad-tree/
 package q427
 
 type Node struct {
diff --git a/solutions/4/q433/solution.go b/solutions/4/q433/solution.go
index cd8b84e..8cd5299 100644
--- a/solutions/4/q433/solution.go
+++ b/solutions/4/q433/solution.go
@@ -1,3 +1,4 @@
+// Package q433 implements a solution for https://leetcode.com/problems/minimum-genetic-mutation/
 package q433
 
 import "slices"
diff --git a/solutions/4/q435/solution.go b/solutions/4/q435/solution.go
index f0e68f3..9f1ef01 100644
--- a/solutions/4/q435/solution.go
+++ b/solutions/4/q435/solution.go
@@ -1,3 +1,4 @@
+// Package q435 implements a solution for https://leetcode.com/problems/non-overlapping-intervals/
 package q435
 
 import (
diff --git a/solutions/4/q437/solution.go b/solutions/4/q437/solution.go
index c83aa3b..8d4d67c 100644
--- a/solutions/4/q437/solution.go
+++ b/solutions/4/q437/solution.go
@@ -1,3 +1,4 @@
+// Package q437 implements a solution for https://leetcode.com/problems/path-sum-iii/
 package q437
 
 type TreeNode struct {
diff --git a/solutions/4/q443/solution.go b/solutions/4/q443/solution.go
index 175c933..0cecaf5 100644
--- a/solutions/4/q443/solution.go
+++ b/solutions/4/q443/solution.go
@@ -1,3 +1,4 @@
+// Package q443 implements a solution for https://leetcode.com/problems/string-compression/
 package q443
 
 func compress(chars []byte) int {
diff --git a/solutions/4/q445/solution.go b/solutions/4/q445/solution.go
index 6e697c1..4c55af7 100644
--- a/solutions/4/q445/solution.go
+++ b/solutions/4/q445/solution.go
@@ -1,3 +1,4 @@
+// Package q445 implements a solution for https://leetcode.com/problems/add-two-numbers-ii/
 package q445
 
 type ListNode struct {
diff --git a/solutions/4/q448/solution.go b/solutions/4/q448/solution.go
index 1c043c0..fa4107e 100644
--- a/solutions/4/q448/solution.go
+++ b/solutions/4/q448/solution.go
@@ -1,3 +1,4 @@
+// Package q448 implements a solution for https://leetcode.com/problems/find-all-numbers-disappeared-in-an-array/
 package q448
 
 func findDisappearedNumbers(nums []int) []int {
diff --git a/solutions/4/q450/solution.go b/solutions/4/q450/solution.go
index d5b280f..f998d37 100644
--- a/solutions/4/q450/solution.go
+++ b/solutions/4/q450/solution.go
@@ -1,3 +1,4 @@
+// Package q450 implements a solution for https://leetcode.com/problems/delete-node-in-a-bst/
 package q450
 
 type TreeNode struct {
diff --git a/solutions/4/q452/solution.go b/solutions/4/q452/solution.go
index e93b6b2..42dcbdb 100644
--- a/solutions/4/q452/solution.go
+++ b/solutions/4/q452/solution.go
@@ -1,3 +1,4 @@
+// Package q452 implements a solution for https://leetcode.com/problems/minimum-number-of-arrows-to-burst-balloons/
 package q452
 
 import "slices"
diff --git a/solutions/4/q485/solution.go b/solutions/4/q485/solution.go
index 74eac37..7cdf9fd 100644
--- a/solutions/4/q485/solution.go
+++ b/solutions/4/q485/solution.go
@@ -1,3 +1,4 @@
+// Package q485 implements a solution for https://leetcode.com/problems/max-consecutive-ones/
 package q485
 
 func findMaxConsecutiveOnes(nums []int) int {
diff --git a/solutions/5/q530/solution.go b/solutions/5/q530/solution.go
index 673014c..9383fdb 100644
--- a/solutions/5/q530/solution.go
+++ b/solutions/5/q530/solution.go
@@ -1,3 +1,4 @@
+// Package q530 implements a solution for https://leetcode.com/problems/minimum-absolute-difference-in-bst/
 package q530
 
 import "math"
diff --git a/solutions/5/q547/solution.go b/solutions/5/q547/solution.go
index a3fa9bb..21af241 100644
--- a/solutions/5/q547/solution.go
+++ b/solutions/5/q547/solution.go
@@ -1,3 +1,4 @@
+// Package q547 implements a solution for https://leetcode.com/problems/number-of-provinces/
 package q547
 
 func walk(graph [][]int, i int, seen []bool) {
diff --git a/solutions/6/q605/solution.go b/solutions/6/q605/solution.go
index 81e1792..0af9505 100644
--- a/solutions/6/q605/solution.go
+++ b/solutions/6/q605/solution.go
@@ -1,3 +1,4 @@
+// Package q605 implements a solution for https://leetcode.com/problems/can-place-flowers/
 package q605
 
 func canPlaceFlowers(flowerbed []int, n int) bool {
diff --git a/solutions/6/q636/solution.go b/solutions/6/q636/solution.go
index f46e6d1..011adf4 100644
--- a/solutions/6/q636/solution.go
+++ b/solutions/6/q636/solution.go
@@ -1,3 +1,4 @@
+// Package q636 implements a solution for https://leetcode.com/problems/exclusive-time-of-functions/
 package q636
 
 import (
diff --git a/solutions/6/q637/solution.go b/solutions/6/q637/solution.go
index a6822d5..37a80fd 100644
--- a/solutions/6/q637/solution.go
+++ b/solutions/6/q637/solution.go
@@ -1,3 +1,4 @@
+// Package q637 implements a solution for https://leetcode.com/problems/average-of-levels-in-binary-tree/
 package q637
 
 type TreeNode struct {
diff --git a/solutions/6/q643/solution.go b/solutions/6/q643/solution.go
index 4bb7d0d..4ce56a1 100644
--- a/solutions/6/q643/solution.go
+++ b/solutions/6/q643/solution.go
@@ -1,3 +1,4 @@
+// Package q643 implements a solution for https://leetcode.com/problems/maximum-average-subarray-i/
 package q643
 
 import "math"
diff --git a/solutions/6/q645/solution.go b/solutions/6/q645/solution.go
index e214789..2333985 100644
--- a/solutions/6/q645/solution.go
+++ b/solutions/6/q645/solution.go
@@ -1,3 +1,4 @@
+// Package q645 implements a solution for https://leetcode.com/problems/set-mismatch/
 package q645
 
 func findErrorNums(nums []int) []int {
diff --git a/solutions/6/q649/solution.go b/solutions/6/q649/solution.go
index 8155436..b8481bd 100644
--- a/solutions/6/q649/solution.go
+++ b/solutions/6/q649/solution.go
@@ -1,3 +1,4 @@
+// Package q649 implements a solution for https://leetcode.com/problems/dota2-senate/
 package q649
 
 func predictPartyVictory(senate string) string {
diff --git a/solutions/6/q693/solution.go b/solutions/6/q693/solution.go
index e9fca63..7cfb576 100644
--- a/solutions/6/q693/solution.go
+++ b/solutions/6/q693/solution.go
@@ -1,3 +1,4 @@
+// Package q693 implements a solution for https://leetcode.com/problems/binary-number-with-alternating-bits/
 package q693
 
 func hasAlternatingBits(n int) bool {
diff --git a/solutions/6/q696/solution.go b/solutions/6/q696/solution.go
index dd93f49..7f5cd2b 100644
--- a/solutions/6/q696/solution.go
+++ b/solutions/6/q696/solution.go
@@ -1,3 +1,4 @@
+// Package q696 implements a solution for https://leetcode.com/problems/count-binary-substrings/
 package q696
 
 func countBinarySubstrings(s string) int {
diff --git a/solutions/7/q700/solution.go b/solutions/7/q700/solution.go
index 7862ab2..5408c9f 100644
--- a/solutions/7/q700/solution.go
+++ b/solutions/7/q700/solution.go
@@ -1,3 +1,4 @@
+// Package q700 implements a solution for https://leetcode.com/problems/search-in-a-binary-search-tree/
 package q700
 
 type TreeNode struct {
diff --git a/solutions/7/q712/solution.go b/solutions/7/q712/solution.go
index 31c1a62..55f4ba3 100644
--- a/solutions/7/q712/solution.go
+++ b/solutions/7/q712/solution.go
@@ -1,3 +1,4 @@
+// Package q712 implements a solution for https://leetcode.com/problems/minimum-ascii-delete-sum-for-two-strings/
 package q712
 
 func minimumDeleteSum(s1 string, s2 string) int {
diff --git a/solutions/7/q714/solution.go b/solutions/7/q714/solution.go
index 06992fa..94e65db 100644
--- a/solutions/7/q714/solution.go
+++ b/solutions/7/q714/solution.go
@@ -1,3 +1,4 @@
+// Package q714 implements a solution for https://leetcode.com/problems/best-time-to-buy-and-sell-stock-with-transaction-fee/
 package q714
 
 // Note: could be done faster with dynamic programming
diff --git a/solutions/7/q717/solution.go b/solutions/7/q717/solution.go
index ba5ad4c..1de7110 100644
--- a/solutions/7/q717/solution.go
+++ b/solutions/7/q717/solution.go
@@ -1,3 +1,4 @@
+// Package q717 implements a solution for https://leetcode.com/problems/1-bit-and-2-bit-characters/
 package q717
 
 func isOneBitCharacter(bits []int) bool {
diff --git a/solutions/7/q724/solution.go b/solutions/7/q724/solution.go
index a47f413..717c915 100644
--- a/solutions/7/q724/solution.go
+++ b/solutions/7/q724/solution.go
@@ -1,3 +1,4 @@
+// Package q724 implements a solution for https://leetcode.com/problems/find-pivot-index/
 package q724
 
 func pivotIndex(nums []int) int {
diff --git a/solutions/7/q735/solution.go b/solutions/7/q735/solution.go
index 7319ee5..34b3b59 100644
--- a/solutions/7/q735/solution.go
+++ b/solutions/7/q735/solution.go
@@ -1,3 +1,4 @@
+// Package q735 implements a solution for https://leetcode.com/problems/asteroid-collision/
 package q735
 
 func asteroidCollision(asteroids []int) []int {
diff --git a/solutions/7/q739/solution.go b/solutions/7/q739/solution.go
index 4734afa..a134708 100644
--- a/solutions/7/q739/solution.go
+++ b/solutions/7/q739/solution.go
@@ -1,3 +1,4 @@
+// Package q739 implements a solution for https://leetcode.com/problems/daily-temperatures/
 package q739
 
 func dailyTemperatures(temperatures []int) []int {
diff --git a/solutions/7/q744/solution.go b/solutions/7/q744/solution.go
index e50e604..0f31d4a 100644
--- a/solutions/7/q744/solution.go
+++ b/solutions/7/q744/solution.go
@@ -1,3 +1,4 @@
+// Package q744 implements a solution for https://leetcode.com/problems/find-smallest-letter-greater-than-target/
 package q744
 
 func nextGreatestLetter(letters []byte, target byte) byte {
diff --git a/solutions/7/q746/solution.go b/solutions/7/q746/solution.go
index 5f39b3d..be8ed00 100644
--- a/solutions/7/q746/solution.go
+++ b/solutions/7/q746/solution.go
@@ -1,3 +1,4 @@
+// Package q746 implements a solution for https://leetcode.com/problems/min-cost-climbing-stairs/
 package q746
 
 func minCostClimbingStairs(cost []int) int {
diff --git a/solutions/7/q756/solution.go b/solutions/7/q756/solution.go
index 07aee27..6f3cce1 100644
--- a/solutions/7/q756/solution.go
+++ b/solutions/7/q756/solution.go
@@ -1,3 +1,4 @@
+// Package q756 implements a solution for https://leetcode.com/problems/pyramid-transition-matrix/
 package q756
 
 type Bottom [2]byte
diff --git a/solutions/7/q761/solution.go b/solutions/7/q761/solution.go
index 13d574e..970c75f 100644
--- a/solutions/7/q761/solution.go
+++ b/solutions/7/q761/solution.go
@@ -1,3 +1,4 @@
+// Package q761 implements a solution for https://leetcode.com/problems/special-binary-string/
 package q761
 
 func toNumber(arrs ...[]byte) int {
diff --git a/solutions/7/q790/solution.go b/solutions/7/q790/solution.go
index b6b06c6..6cb924b 100644
--- a/solutions/7/q790/solution.go
+++ b/solutions/7/q790/solution.go
@@ -1,3 +1,4 @@
+// Package q790 implements a solution for https://leetcode.com/problems/domino-and-tromino-tiling/
 package q790
 
 const (
diff --git a/solutions/8/q812/solution.go b/solutions/8/q812/solution.go
index fdff97c..1186512 100644
--- a/solutions/8/q812/solution.go
+++ b/solutions/8/q812/solution.go
@@ -1,3 +1,4 @@
+// Package q812 implements a solution for https://leetcode.com/problems/largest-triangle-area/
 package q812
 
 func area2(a, b []int) float64 {
diff --git a/solutions/8/q840/solution.go b/solutions/8/q840/solution.go
index 1a4d2f7..af5c6ed 100644
--- a/solutions/8/q840/solution.go
+++ b/solutions/8/q840/solution.go
@@ -1,3 +1,4 @@
+// Package q840 implements a solution for https://leetcode.com/problems/magic-squares-in-grid/
 package q840
 
 func checkSquare(x, y int, grid [][]int) bool {
diff --git a/solutions/8/q841/solution.go b/solutions/8/q841/solution.go
index 7589b97..ea169fd 100644
--- a/solutions/8/q841/solution.go
+++ b/solutions/8/q841/solution.go
@@ -1,3 +1,4 @@
+// Package q841 implements a solution for https://leetcode.com/problems/keys-and-rooms/
 package q841
 
 func canVisitAllRooms(rooms [][]int) bool {
diff --git a/solutions/8/q865/solution.go b/solutions/8/q865/solution.go
index 5cc42c6..d610195 100644
--- a/solutions/8/q865/solution.go
+++ b/solutions/8/q865/solution.go
@@ -1,3 +1,4 @@
+// Package q865 implements a solution for https://leetcode.com/problems/smallest-subtree-with-all-the-deepest-nodes/
 package q865
 
 type TreeNode struct {
diff --git a/solutions/8/q872/solution.go b/solutions/8/q872/solution.go
index 1b6862a..50a7bcc 100644
--- a/solutions/8/q872/solution.go
+++ b/solutions/8/q872/solution.go
@@ -1,3 +1,4 @@
+// Package q872 implements a solution for https://leetcode.com/problems/leaf-similar-trees/
 package q872
 
 import "slices"
diff --git a/solutions/8/q875/solution.go b/solutions/8/q875/solution.go
index 0245211..98e7c2c 100644
--- a/solutions/8/q875/solution.go
+++ b/solutions/8/q875/solution.go
@@ -1,3 +1,4 @@
+// Package q875 implements a solution for https://leetcode.com/problems/koko-eating-bananas/
 package q875
 
 import (
diff --git a/solutions/9/q901/solution.go b/solutions/9/q901/solution.go
index 5ef4bb1..2ed82d4 100644
--- a/solutions/9/q901/solution.go
+++ b/solutions/9/q901/solution.go
@@ -1,3 +1,4 @@
+// Package q901 implements a solution for https://leetcode.com/problems/online-stock-span/
 package q901
 
 type Price struct {
diff --git a/solutions/9/q909/solution.go b/solutions/9/q909/solution.go
index bd1e397..9b808d3 100644
--- a/solutions/9/q909/solution.go
+++ b/solutions/9/q909/solution.go
@@ -1,3 +1,4 @@
+// Package q909 implements a solution for https://leetcode.com/problems/snakes-and-ladders/
 package q909
 
 func coord(n, num int) (x, y int) {
diff --git a/solutions/9/q918/solution.go b/solutions/9/q918/solution.go
index 0c41ff0..3ad2353 100644
--- a/solutions/9/q918/solution.go
+++ b/solutions/9/q918/solution.go
@@ -1,3 +1,4 @@
+// Package q918 implements a solution for https://leetcode.com/problems/maximum-sum-circular-subarray/
 package q918
 
 func maxSubarraySumCircular(nums []int) int {
diff --git a/solutions/9/q933/solution.go b/solutions/9/q933/solution.go
index b9ce339..8770c7c 100644
--- a/solutions/9/q933/solution.go
+++ b/solutions/9/q933/solution.go
@@ -1,3 +1,4 @@
+// Package q933 implements a solution for https://leetcode.com/problems/number-of-recent-calls/
 package q933
 
 type RecentCounter struct{ reqs []int }
diff --git a/solutions/9/q944/solution.go b/solutions/9/q944/solution.go
index ffc9ae4..c1d1a51 100644
--- a/solutions/9/q944/solution.go
+++ b/solutions/9/q944/solution.go
@@ -1,3 +1,4 @@
+// Package q944 implements a solution for https://leetcode.com/problems/delete-columns-to-make-sorted/
 package q944
 
 func minDeletionSize(strs []string) int {
diff --git a/solutions/9/q961/solution.go b/solutions/9/q961/solution.go
index f689a78..641e8b1 100644
--- a/solutions/9/q961/solution.go
+++ b/solutions/9/q961/solution.go
@@ -1,3 +1,4 @@
+// Package q961 implements a solution for https://leetcode.com/problems/n-repeated-element-in-size-2n-array/
 package q961
 
 import "math/rand"
diff --git a/solutions/9/q976/solution.go b/solutions/9/q976/solution.go
index 5a2580f..dffcdec 100644
--- a/solutions/9/q976/solution.go
+++ b/solutions/9/q976/solution.go
@@ -1,3 +1,4 @@
+// Package q976 implements a solution for https://leetcode.com/problems/largest-perimeter-triangle/
 package q976
 
 import "slices"
diff --git a/solutions/9/q986/solution.go b/solutions/9/q986/solution.go
index 251a85b..9b3b314 100644
--- a/solutions/9/q986/solution.go
+++ b/solutions/9/q986/solution.go
@@ -1,3 +1,4 @@
+// Package q986 implements a solution for https://leetcode.com/problems/interval-list-intersections/
 package q986
 
 import "slices"
diff --git a/solutions/9/q994/solution.go b/solutions/9/q994/solution.go
index 6463457..6bf3a11 100644
--- a/solutions/9/q994/solution.go
+++ b/solutions/9/q994/solution.go
@@ -1,3 +1,4 @@
+// Package q994 implements a solution for https://leetcode.com/problems/rotting-oranges/
 package q994
 
 func orangesRotting(grid [][]int) int {