chore: add package level comments

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 {

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).

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 {

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"

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 {

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 {

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"

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") }

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"

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 {

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"

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 {