规范格式

leetcode/0394.Decode-String/394. Decode String.go

@@ -0,0 +1,42 @@
+package leetcode
+
+import (
+	"strconv"
+)
+
+func decodeString(s string) string {
+	stack, res := []string{}, ""
+	for _, str := range s {
+		if len(stack) == 0 || (len(stack) > 0 && str != ']') {
+			stack = append(stack, string(str))
+		} else {
+			tmp := ""
+			for stack[len(stack)-1] != "[" {
+				tmp = stack[len(stack)-1] + tmp
+				stack = stack[:len(stack)-1]
+			}
+			stack = stack[:len(stack)-1]
+			index, repeat := 0, ""
+			for index = len(stack) - 1; index >= 0; index-- {
+				if stack[index] >= "0" && stack[index] <= "9" {
+					repeat = stack[index] + repeat
+				} else {
+					break
+				}
+			}
+			nums, _ := strconv.Atoi(repeat)
+			copyTmp := tmp
+			for i := 0; i < nums-1; i++ {
+				tmp += copyTmp
+			}
+			for i := 0; i < len(repeat)-1; i++ {
+				stack = stack[:len(stack)-1]
+			}
+			stack[index+1] = tmp
+		}
+	}
+	for _, s := range stack {
+		res += s
+	}
+	return res
+}