leetcode.cn/problems/Xl 解题思路 先全部转小写字母(题目要求忽略大小写)然后先去除除了字母和数字的字符,首尾依次比较 解题方法 俺这版 class Solution { public static boolean isPalindrome(String s) { String s1 = s.toLowerCase().replaceAll("[^a-z|0-9]", ""); int length = s1.length(); fo...
地址:https://oj.leetcode.com/problems/valid-palindrome/ 算法:这道题应该可以直接上代码吧。 1classSolution {2public:3boolisPalindrome(strings) {4intn =s.size();5intj =0;6for(inti =0; i < n; ++i){7if(isalnum(s[i])){8s[j++] =tolower(s[i]);9}10}11s = s.substr(0,j);12...
For the purpose of this problem, we define empty string as valid palindrome. 算法: AI检测代码解析 1. public boolean isDecent(char c) { 2. if (Character.isAlphabetic(c) || Character.isDigit(c)) { 3. return true; 4. else 5. return false; 6. } 7. 8. public boolean isPalindrome(St...
This is a good question to ask during an interview. For the purpose of this problem, we define empty string as valid palindrome. classSolution {public:boolisPalindrome(strings) {//Start typing your C/C++ solution below//DO NOT write int main() function//空串直接认为是回文if(s.empty()) ...
is_palindrome(s, l + 1, r) or Solution.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,...
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'....
LeetCode-Valid Palindrome II Description: Given a non-empty string s, you may delete at most one character. Judge whether you can make it a palindrome. Example 1: AI检测代码解析 Input: "aba" Output: True 1. 2. Example 2: AI检测代码解析...
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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.
1. Valid PalindromeII 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 coulddeletethe character'c'. ...