Given a string s, return true if it is a palindrome, or false otherwise. 英文版地址 leetcode.com/problems/v 中文版描述 给定一个字符串 s ,验证 s 是否是 回文串 ,只考虑字母和数字字符,可以忽略字母的大小写。本题中,将空字符串定义为有效的 回文串 。 示例1:输入: s = "A man, a plan, ...
Valid Palindrome回文数 whowhoha@outlook.com Question: Given a string, determine if it is a palindrome, considering only alphanumeric characters and ignoring cases. For example, "A man, a plan, a canal: Panama" is a palindrome. "race a car" is not a palindrome. 解决方法:使用两个指针,分...
"A man, a plan, a canal: Panama" is a palindrome. "race a car" is not a palindrome. Note: Have you consider that the string might be empty? This is a good question to ask during an interview. For the purpose of this problem, we define empty string as valid palindrome. 1.【基础...
题目链接:https://leetcode.com/problems/valid-palindrome/ 题目: Given a string, determine if it is a palindrome, considering only alphanumeric characters and ignoring cases. For example, "A man, a plan, a canal: Panama"is a palindrome. "race a car" Note: Have you consider that the strin...
Leetcode: Valid Palindrome Given a string, determineifit is a palindrome, considering only alphanumeric characters and ignoring cases. For example,"A man, a plan, a canal: Panama"is a palindrome."race a car"is not a palindrome. Note:...
每天一个easy题的think loud, 希望能有天回过头来发现自己进步了很多, 视频播放量 20、弹幕量 0、点赞数 0、投硬币枚数 0、收藏人数 0、转发人数 0, 视频作者 出卖真心的女孩, 作者简介 世界尽头的海,相关视频:力扣2475,leetcode1469 Find All The Lonely Nodes,leetcod
Can you solve this real interview question? Valid Palindrome II - Given a string s, return true if the s can be palindrome after deleting at most one character from it. Example 1: Input: s = "aba" Output: true Example 2: Input: s = "abca" Outpu
is_palindrome(s, l, r - 1) # 此时 s[l] 和 s[r] 相等,可以继续处理。 #将 l 向右移动一位 l += 1 #将 r 向左移动一位 r -= 1 # 此时说明 s 本身就是回文,直接返回 True return True @staticmethod def is_palindrome(s: str, l: int, r: int) -> bool: # 当还有字符需要比较时...
LeetCode 125:Valid Palindrome(有效回文) Q:Given a string, determine if it is a palindrome, considering only alphanumeric characters and ignoring cases. Note: For the purpose of this problem, we define empty string as valid palindrome.
680. Valid Palindrome II Given a strings, returntrueif thescan be palindrome after deletingat most onecharacter from it. Example 1: Input:s = "aba"Output:true Example 2: Input:s = "abca"Output:trueExplanation:You could delete the character 'c'....