classSolution{publicintlengthOfLongestSubstring(String s){intans=0; Map<Character, Integer> map =newHashMap<>();for(intl=0, r =0; r < s.length(); ++r) {charc=s.charAt(r);if(map.containsKey(c) && l <= map.get(c)) { l = map.get(c) +1; }else{ ans = Math.max(r - ...
dp[i]的类型为int,判断比较的速度慢于boolean类型 初始的寻找最大回文子串方式是每次判断到长度变大,就调用一次s.substring(start,end)大大增加了开销,最后修改后决定采用保存开始位置start与长度len的方法。 在子串长度为1和2时不必要地对start与len赋值,现在加上了判断条件。 参考链接 http://articles.leetcode....
Given a strings, returnthe longestpalindromicsubstringins. Example 1: Input:s = "babad"Output:"bab"Explanation:"aba" is also a valid answer. Example 2: Input:s = "cbbd"Output:"bb" Constraints: 1 <= s.length <= 1000 sconsist of only digits and English letters. Accepted 3.8M Submission...
切换模式写文章 登录/注册【LeetCode】5. Longest Palindromic Substring 陌儿的百科全书 来自专栏 · LeetCode 题目: Given a string s, find the longest palindromic substring in s. You may assume that the maximum length of s is 1000. Example 1: Input: "babad" Output: "bab" Note: "aba" is...
原题链接 :leetcode.com/problems/l Given a string s, find the longest palindromic substring in s. You may assume that the maximum length of s is 1000. 给定字符串 s,找到 s 中最长的回文字符串,可以假定 s 的最大长度是 1000。 Example 1: Input: "babad" Output: "bab" Note: "aba" is...
1. 2. 3. 4. 5. 我的做法:维护一个window,r移动到超出k distinct character限制是更新max,然后移动l使distinct character <=k; 这种做法更新max只发生在超出限制的时候,有可能永远都没有超出限制,所以while loop完了之后要补上一个max的更新 1publicclassSolution {2publicintlengthOfLongestSubstringKDistinct(...
Can you solve this real interview question? Longest Substring Without Repeating Characters - Given a string s, find the length of the longest substring without duplicate characters. Example 1: Input: s = "abcabcbb" Output: 3 Explanation: The answer
LeetCode刷题，是为了获得面经，这是题目5的java实现解法 工具/原料 笔记本 eclipse 方法/步骤 1 题目叙述Given a stringS, find the longest palindromic substring inS. You may assume that the maximum length ofSis 1000, and there exists one unique longest palindromic substring.2 本体可以使用动态规划去...
题目地址:https://leetcode.com/problems/longest-substring-without-repeating-characters/description/ 题目描述 Given a string, find the length of thelongest substringwithout repeating characters. Example 1: Input: "abcabcbb" Output: 3 Explanation: The answer is "abc", which the length is 3. ...
陆陆续续在LeetCode上刷了一些题,一直没有记录过,准备集中整理记录一下 classSolution{publicintlengthOfLongestSubstring(String s){if(s.length()<2){returns.length();}intmax=0;List<Character>list=newArrayList<>();for(inti=0;i<s.length()-1;i++){list.clear();for(intj=i;j<s.length();j++...