chore: add package level comments

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"

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 (

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 {

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"

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}}

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"

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 (