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字节&Leetcode3:无重复字符的最长子串 #21

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@sisterAn

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:

输入: "bbbbb"
输出: 1
解释: 因为无重复字符的最长子串是 "b",所以其长度为 1

示例 3:

输入: "pwwkew"
输出: 3
解释: 因为无重复字符的最长子串是 "wke",所以其长度为 3
     请注意,你的答案必须是 子串 的长度,"pwke" 是一个子序列,不是子串。

附leetcode:leetcode

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