Leetcode--680. Valid Palindrome II(easy)

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[LeetCode] 680. Valid Palindrome II 验证回文字符串 II

Given a non-empty string s, you may delete at most one character. Judge whether you can make it a palindrome. Example 1: Input: "aba" Output: True Example 2: Input: "abca" Output: True Explanation: You could delete the character 'c'. N…

[leetcode]680. Valid Palindrome II有效回文II(可至多删一原字符)

Given a non-empty string s, you may delete at most one character. Judge whether you can make it a palindrome. Example 1: Input: "aba" Output: True Example 2: Input: "abca" Output: True Explanation: You could delete the character 'c'. 思…

LeetCode 680. Valid Palindrome II (验证回文字符串 Ⅱ)

Given a non-empty string s, you may delete at most one character. Judge whether you can make it a palindrome. Example 1: Input: "aba" Output: True Example 2: Input: "abca" Output: True Explanation: You could delete the character 'c'. N…

LeetCode 680. Valid Palindrome II(双指针)

题意:给定一个字符串,可以最多去掉一个字符,判断是否可以使该字符串成为一个回文串. 分析:head和tail双指针分别指向字符串首尾,如果s[head] != s[tail],则要么去掉s[head],要么去掉s[tail],只需判断s[head + 1]~s[tail]或s[head]~s[tail-1]是否为回文串即可. class Solution { public: bool judge(string s, int head, int tail){ while(head <= tail)…

680. Valid Palindrome II【easy】

680. Valid Palindrome II[easy] Given a non-empty string s, you may delete at most one character. Judge whether you can make it a palindrome. Example 1: Input: "aba" Output: True Example 2: Input: "abca" Output: True Explanation: You co…

【Leetcode_easy】680. Valid Palindrome II

problem 680. Valid Palindrome II solution: 不理解判断函数中的节点的问题... class Solution { public: bool validPalindrome(string s) { , right = s.size()-; while(left<right) { if(s[left]!=s[right]) { ) || isValid(s, left+, right);//err.. } left++; right--; } return…

【LeetCode】680. Valid Palindrome II

Difficulty:easy More:[目录]LeetCode Java实现 Description https://leetcode.com/problems/valid-palindrome-ii/ Given a non-empty string s, you may delete at most one character. Judge whether you can make it a palindrome. Example 1: Input: "aba" Output…

【LeetCode】680. Valid Palindrome II 验证回文字符串 Ⅱ（Python）

作者: 负雪明烛 id: fuxuemingzhu 个人博客: http://fuxuemingzhu.cn/ 目录题目描述题目大意解题方法双指针思路来源初版方案进阶方案日期题目地址:https://leetcode.com/problems/valid-palindrome-ii/description/ 题目描述 Given a non-empty string s, you may delete at most one character. Judge whether y…

680. Valid Palindrome II【Easy】【双指针-可以删除一个字符，判断是否能构成回文字符串】

Given a non-empty string s, you may delete at most one character. Judge whether you can make it a palindrome. Example 1: Input: "aba" Output: True Example 2: Input: "abca" Output: True Explanation: You could delete the character 'c'. N…

Python 解LeetCode：680. Valid Palindrome II

题目:给定一个字符串,在最多删除一个字符的情况下,判断这个字符串是不是回文字符串. 思路:回文字符串,第一想到的就是使用两个指针,前后各一个,当遇到前后字符不一致的时候,有两种情况,删除前面字符或者删除后面字符.由于删除一个字符后剩下的仍旧是字符串,可以直接递归处理了.然后用一个flag,当达到2时,就可以递归结束了. 代码如下: class Solution(object): def isPalindrome(self, s, left, right, flag): while left <…

Leetcode--680. Valid Palindrome II(easy)

Given a non-empty string s, you may delete at most one character. Judge whether you can make it a palindrome. Example 1: Input: "aba" Output: True Example 2: Input: "abca" Output: True Explanation: You could delete the character 'c'. c…

[LeetCode] 680. Valid Palindrome II_Easy tag: Two Pointers

Given a non-empty string s, you may delete at most one character. Judge whether you can make it a palindrome. Example 1: Input: "aba" Output: True Example 2: Input: "abca" Output: True Explanation: You could delete the character 'c'. N…

680. Valid Palindrome II 对称字符串-可删字母版本

［抄题］: Given a non-empty string s, you may delete at most one character. Judge whether you can make it a palindrome. Example 1: Input: "aba" Output: True Example 2: Input: "abca" Output: True Explanation: You could delete the character…

【leetcode】Valid Palindrome II

很久没有做题了,今天写个简单难度的练练手感. Given a non-empty string s, you may delete at most one character. Judge whether you can make it a palindrome. Example 1: Input: "aba" Output: True Example 2: Input: "abca" Output: True Explanation: You could dele…

680. Valid Palindrome II

static int wing=[]() { std::ios::sync_with_stdio(false); cin.tie(NULL); ; }(); class Solution { public: bool validPalindrome(string s) { int len=s.length(); ,right=len-; while(left<right) { if(s[left]!=s[right]) ,right,s)||judgedor(left,right-,s); le…

LeetCode 680. 验证回文字符串 Ⅱ(Valid Palindrome II) 1

680. 验证回文字符串 Ⅱ 680. Valid Palindrome II 题目描述给定一个非空字符串 s,最多删除一个字符.判断是否能成为回文字符串. 每日一算法2019/5/4Day 1LeetCode680. Valid Palindrome II 示例 1: 输入: "aba" 输出: True 示例 2: 输入: "abca" 输出: True 解释: 你可以删除c字符. 注意: 字符串只包含从 a-z 的小写字母.字符串的最大长度是 50000.…

LeetCode 1216. Valid Palindrome III

原题链接在这里:https://leetcode.com/problems/valid-palindrome-iii/ 题目: Given a string s and an integer k, find out if the given string is a K-Palindrome or not. A string is K-Palindrome if it can be transformed into a palindrome by removing at most k charac…

125. Valid Palindrome【easy】

125. Valid Palindrome[easy] 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. No…

[LeetCode] Valid Palindrome II 验证回文字符串之二

Given a non-empty string s, you may delete at most one character. Judge whether you can make it a palindrome. Example 1: Input: "aba" Output: True Example 2: Input: "abca" Output: True Explanation: You could delete the character 'c'. N…

LeetCode Valid Palindrome II

原题链接在这里:https://leetcode.com/problems/valid-palindrome-ii/description/ 题目: Given a non-empty string s, you may delete at most one character. Judge whether you can make it a palindrome. Example 1: Input: "aba" Output: True Example 2: Input: "…