chore: add package level comments

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 {

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 {

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 {

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 {

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 {

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"

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"

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 {

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 {

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"