算法滑动窗口字母的相关内容

文章 2024-08-14 来自：开发者社区

【算法】滑动窗口——找到字符串中所有字母异位词

本节博客是对题目——找到字符串中所有字母异位词的从读题到代码实现以及优化的详细解读，有需要借鉴即可。 1.题目题目链接：LINK 首先来解释一下什么是异位词，所谓“异位词”，即不要求字母...

文章 2024-06-13 来自：开发者社区

【经典LeetCode算法题目专栏分类】【第8期】滑动窗口：最小覆盖子串、字符串排列、找所有字母异位词、最长无重复子串

一般应用场景数组，字符串子串等问题。通用模板双指针大致逻辑如下： left = 0 right = 0 while right < len(s): # 右指针右移增大窗口 window.add(s[right]) righ...

文章 2023-10-31 来自：开发者社区

【算法专题突破】滑动窗口 - 找到字符串中所有字母异位词（14）

1. 题目解析题目链接：438. 找到字符串中所有字母异位词 - 力扣（Leetcode）这道题很好理解，就是找出从不同位置开始的所有异位词。2. 算法原理那我们该如何快速判断是否是异位词呢？因为异位词的字符种类和数量是一样的，用哈希表就可以很容易的比较。思路和代码都还是比较简单的：我们直接维护一个定长的窗口，然后通过把字符插入哈希计数，然后每走一步判断是否是异位词即可。3. 代码编写clas....

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更新时间 2024-08-15 11:50:41

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