Given a string s and a non-empty string p, find all the start indices of p's anagrams in s. Strings consists of lowercase English letters only and the length of both strings s and p will not be larger than 20,100. The order of output does not matter.…

Given a string s and a non-empty string p, find all the start indices of p's anagrams in s. Strings consists of lowercase English letters only and the length of both strings s and p will not be larger than 20,100. The order of output does not matter.…

Given a string s and a non-empty string p, find all the start indices of p's anagrams in s. Strings consists of lowercase English letters only and the length of both strings s and p will not be larger than 20,100. The order of output does not matter.…

Question 438. Find All Anagrams in a String Solution 题目大意:给两个字符串,s和p,求p在s中出现的位置,p串中的字符无序,ab=ba 思路:起初想的是求p的全排列,保存到set中,遍历s,如果在set中出现,s中的第一个字符位置保存到结果中,最后返回结果.这种思路执行超时.可能是求全排列超时的. 思路2:先把p中的字符及字符出现的次数统计出来保存到map中,再遍历s,这个思路和169. Majority Element - LeetCode…

problem 438. Find All Anagrams in a String solution1: class Solution { public: vector<int> findAnagrams(string s, string p) { if(s.empty()) return {}; vector<, ); for(auto a:p) pv[a]++; int sn = s.size(); ; while(i<sn) { vector<int> tmp…

[leetcode]438. Find All Anagrams in a String Given a string s and a non-empty string p, find all the start indices of p's anagrams in s. Strings consists of lowercase English letters only and the length of both strings s and p will not be larger than…

原题: 438. Find All Anagrams in a String 解题: 两个步骤 1)就是从s中逐步截取p长度的字符串 2)将截取出的字符串和p进行比较,比较可以用排序,或者字典比较(这两种方法提交后都超时了) 代码如下(提交超时): class Solution { public: vector<int> findAnagrams(string s, string p) { int lenp = p.length(); int lens = s.length(); int i=…

438. Find All Anagrams in a String DescriptionHintsSubmissionsDiscussSolution   Pick One Given a string s and a non-empty string p, find all the start indices of p's anagrams in s. Strings consists of lowercase English letters only and the length of…

string类中有很多好用的函数,这里介绍在string类字符串中查找字符串的函数. string类字符串中查找字符串一般可以用: 1.s.find(s1)函数,从前往后查找与目标字符串匹配的第一个位置: 2.s.rfind(s1)函数,从后往前查找与目标字符串匹配的最后一个位置: 3.s.find_first_of(s1),查找在s1中任意一个字符在s中第一次出现的位置 4.s.find_last_of(s1)       查找在s1中任意一个字符在s中最后一次出现的位置 下面给出一道例题:…

作者: 负雪明烛 id: fuxuemingzhu 个人博客: http://fuxuemingzhu.cn/ 目录 题目描述 题目大意 解题方法 滑动窗口 双指针 日期 题目地址:https://leetcode.com/problems/find-all-anagrams-in-a-string/description/ 题目描述 Given a string s and a non-empty string p, find all the start indices of p's anag…