题目: Given a string, find the length of the longest substring without repeating characters. 示例: Given "abcabcbb", the answer is "abc", which the length is 3. Given "bbbbb", the answer is "b", with the length of 1. Gi…

Question: 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 len…

一开始以为是不连续的,其实要求子串是连续的.想法:two-pointer O(n)时间,再借助256大小的int数组.两个下标i,j(i<=j).对于i=0,找到最右侧的字符不重复的下标的后一位j.这就是i=0为左边界的串的最优解.然后i++.即考察i=1为左边界的情况.如果此时[i,j]的串仍存在重复,那么肯定不是最终的最优解,继续i++.否则,j持续增1直到出现字符重复,即寻找当前i为左边界的最优解. public class Solution { //two pointer public…

题目描述 给定一个字符串,找出不含有重复字符的最长子串的长度. 示例: 给定 "abcabcbb" ,没有重复字符的最长子串是 "abc" ,那么长度就是3. 给定 "bbbbb" ,最长的子串就是 "b" ,长度是1. 给定 "pwwkew" ,最长子串是 "wke" ,长度是3.请注意答案必须是一个子串,"pwke" 是 子序列  而不是子串. 解题思路 采用双指…

题目链接 Given a string, find the length of the longest substring without repeating characters. For example, the longest substring without repeating letters for "abcabcbb" is "abc", which the length is 3. For "bbbbb" the longest…

题目: 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…

题目来源:https://leetcode.com/problems/longest-substring-without-repeating-characters/ Given a string, find the length of the longest substring without repeating characters. For example, the longest substring without repeating letters for "abcabcbb"…

Given a string, find the length of the longest substring without repeating characters. For example, the longest substring without repeating letters for "abcabcbb" is "abc", which the length is 3. For "bbbbb" the longest subst…

Given a string, find the length of the longest substring without repeating characters. For example, the longest substring without repeating letters for "abcabcbb" is "abc", which the length is 3. For "bbbbb" the longest subst…

Given a string, find the length of the longest substring without repeating characters. For example, the longest substring without repeating letters for "abcabcbb" is "abc", which the length is 3. For "bbbbb" the longest subst…