1classSolution {2publicintlongestRepeatingSubstring(String S) {3if(S ==null|| S.length() == 0){4return0;5}67intn =S.length();8intres = 0;910int[][] dp =newint[n+1][n+1];11for(inti = 1; i<=n; i++){12for(intj = 1; j<i; j++){13if(S.charAt(i-1) == S.char...
classSolution {public:intlongestSubstring(strings,intk) {intres =0, i =0, n =s.size();while(i + k <=n) {intm[26] = {0}, mask =0, max_idx =i;for(intj = i; j < n; ++j) {intt = s[j] -'a';++m[t];if(m[t] < k) mask |= (1<<t);elsemask &= (~(1<<t)...
复制 intlengthOfLongestSubstring(string s){map<char,int>resultMap;int head=0,tail=0;int maxLen=0;while(tail<s.length()){map<char,int>::iterator iter=resultMap.find(s[tail]);if(iter!=resultMap.end()){if((tail-head)>maxLen)maxLen=tail-head;int index=iter->second;for(int i=head;i...
Given a string, find the length of the longest substring without repeating characters. Examples: Given “abcabcbb”, the answer is “abc”, which the length is 3. Given “bbbbb”, the answer is “b”, with the length of 1. Given “pwwkew”, the answer is “wke”, with the length ...
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. ...
给定一个字符串 s ,请你找出其中不含有重复字符的 最长子串的长度。 示例1: "abc" 示例2: "b" 示例3: "wke" 题解:滑动窗口 class Solution { public: int lengthOfLongestSubstring(string s) { unordered_map<char, int> window; int len = 0; int left = 0, right = 0; while(right < s.siz...
Leetcode3——Longest Substring Without Repeating Characters 文章作者:Tyan 博客:noahsnail.com|CSDN|简书 1. 问题描述 Given a string, find the length of the longest substring without repeating characters. Examples: Given "abcabcbb", the answer is "abc", which the length is 3....
3. Longest Substring Without Repeating Characters 题目 Given a string, find the length of the longest substring without repeating characters. Example 1: Input: "abcabcbb" Output: 3 Explanation: The answer is "abc", with the length of 3. ...
3 + We use the **Sliding Window** technique to efficiently find the longest substring without repeating characters. 4 + 5 + ### 🧠 Intuition 6 + 7 + Instead of checking every possible substring (which would be very slow — O(n²)), we keep track of a **window** of chara...
https://leetcode-cn.com/problems/longest-substring-without-repeating-characters/ 给定一个字符串,请你找出其中不含有重复字符的最长子串的长度。 示例1: 输入:"abcabcbb" 输出:3 解释: 因为无重复字符的最长子串是"abc",所以其长度为3。 示例2: