add sol

leetcode/1544.MakeTheStringGreat/sol.go

@@ -0,0 +1,32 @@
+// https://leetcode.com/problems/make-the-string-great
+
+package main
+
+import (
+	"fmt"
+)
+
+func makeGood(s string) string {
+	stk := []rune{}
+	for _, c := range s {
+		if len(stk) == 0 || abs(int(stk[len(stk)-1]-c)) != 32 {
+			stk = append(stk, c)
+		} else {
+			stk = stk[:len(stk)-1]
+		}
+	}
+	return string(stk)
+}
+
+func abs(x int) int {
+	if x < 0 {
+		return -x
+	}
+	return x
+}
+
+func main() {
+	s := "leEeetcode"
+
+	fmt.Println(makeGood(s))
+}