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力扣每日一题刷题总结:链表篇(持续更新)
2022-07-02 06:28:00 【Villanelle#】
3. 无重复字符的最长子串Medium 滑动窗口、散列表2021/11/10
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:
输入: s = “pwwkew”
输出: 3
重要思想方法:滑动窗口,遍历字符串,左端位置默认为0,右端也默认为0,从右端向右逐渐滑动。
class Solution {
public:
//右端-左端+1即为字符串长度,散列表中的元素即为拆分的字符串
//如果没有遇到散列表中的字符,则加入散列表并继续右移
//如果遇到散列表中的字符,将原有字符删除并左端向右滑动,直到该
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