题解 | #判断是否为回文字符串#
判断是否为回文字符串
https://www.nowcoder.com/practice/e297fdd8e9f543059b0b5f05f3a7f3b2
using System;
using System.Collections.Generic;
class Solution {
/**
* 代码中的类名、方法名、参数名已经指定,请勿修改,直接返回方法规定的值即可
*
*
* @param str string字符串 待判断的字符串
* @return bool布尔型
*/
public bool judge (string str) {
// write code here
if (str.Length <= 1) return true;
Stack<char> stack = new Stack<char>();
foreach (var item in str) {
stack.Push(item);
}
int i = 0;
while (stack.Count != 0) {
if (stack.Pop() != str[i++])
return false;
}
return true;
}
}
