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; } }