49. Anagrams

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[Leetcode][Python]49: Anagrams

# -*- coding: utf8 -*-'''__author__ = 'dabay.wang@gmail.com' 49: Anagramshttps://leetcode.com/problems/anagrams/ Given an array of strings, return all groups of strings that are anagrams.Note: All inputs will be in lower-case. === Comments by Dabay==…

Leetcode#49 Anagrams

原题地址 Anagram:变位词.两个单词是变位词关系的条件是:组成单词的字符相同,只是顺序不同第一次看这道题看了半天没明白要干嘛,丫就不能给个样例输入输出么..后来还是看网上其他人的总结知道是怎么回事. 通常的做法是:把字符串内的字符排序,这样,凡是变位词都会变成相同的单词.用map记录这样的单词出现了几个,如果超过1个,则加入结果集中. 代码: vector<string> anagrams(vector<string> &strs) { vector<stri…

题目: Given an array of strings, return all groups of strings that are anagrams. Note: All inputs will be in lower-case. Hide Tags Hash Table String 链接: http://leetcode.com/problems/anagrams/ 题解: 求String数组里所有的异位构词anagram.比如"abcde"和"edcba&qu…

【LeetCode】49. Anagrams (2 solutions)

Anagrams Given an array of strings, return all groups of strings that are anagrams. Note: All inputs will be in lower-case. 首先解释一下什么是anagrams:在不考虑顺序的情况下,包含相同字母的字符串组成anagrams 例如: 1.{"eat","ate","tea","coffee"}的anagra…

LeetCode All in One 题目讲解汇总(持续更新中...)

终于将LeetCode的免费题刷完了,真是漫长的第一遍啊,估计很多题都忘的差不多了,这次开个题目汇总贴,并附上每道题目的解题连接,方便之后查阅吧~ 477 Total Hamming Distance 44.10% Meidum 475 Heaters 30.20% Easy 474 Ones and Zeroes 34.90% Meidum 473 Matchsticks to Square 31.80% Medium 472 Concatenated Words 29.20% Hard…

LeetCode 刷题顺序表

Id Question Difficulty Frequency Data Structures Algorithms 1 Two Sum 2 5 array + set sort + two pointers 2 Add Two Numbers 3 4 linked list two pointers + math 3 Longest Substring Without Repeating Characters 3 2 string + hashtable two pointers 4 Med…

LeetCode Question Difficulty Distribution

参考链接:https://docs.google.com/spreadsheet/pub?key=0Aqt--%20wSNYfuxdGxQWVFsOGdVVWxQRlNUVXZTdEpOeEE&output=html ID Question Diff Freq Data Structure Algorithms 1 Two Sum 2 5 array sort set Two Pointers 2 Add…

leetcode难度及面试频率

转载自:LeetCode Question Difficulty Distribution 1 Two Sum 2 5 array sort set Two Pointers 2 Add Two Numbers 3 4 linked list Two Pointers Math 3 Longest Substring Without Repeating Characters 3 2 string Two Poin…

Leetcode难度表及解题汇总

Leetcode难度表及解题汇总参考网上一份题目难度表,以及本人的解题. Id Question Difficulty Frequency Data Structures Algorithms Blog Comment 1 Two Sum 2 5 array+set sort+2ptr 2 Add Two Numbers 3 4 linkedlist math+2ptr Leetcode解题-链表(2.2.1)AddTwoNumbers 3 Longest Substring Without…

leetcode刷题指南

转载自:http://blog.csdn.net/lnho2015/article/details/50962989 以下是我个人做题过程中的一些体会: 1. LeetCode的题库越来越大,截止到目前,已经有321个问题了.对于大多数人来说,没有时间也没有必要把所有题目都做一遍(时间充裕可以随意).刷个100题左右应该就差不多了(可以考虑序号为前100多的题目,相对更经典一点). 2. 从AC率高的开始做,难度从简单->中等,先不要做困难的. 3. 可以按照下文的面试出题频率顺序来做,从频率最…

LeetCode难度与出现频率

转载自:LeetCode Question Difficulty Distribution 1 Two Sum 2 5 array sort set Two Pointers 2 Add Two Numbers 3 4 linked list Two Pointers Math 3 Longest Substring Without Repeating Characters 3 2 string Two Pointers …

leetcode难度及频率

1 Two Sum 2 5 array sort set Two Pointers 2 Add Two Numbers 3 4 linked list Two Pointers Math 3 Longest Substring Without Repeating Characters 3 2 string Two Pointers hashtable 4 Median of Two S…

LeetCode难度和面试频率（转）

转自:http://www.cnblogs.com/ywl925/p/3507945.html ID Question Diff Freq Data Structure Algorithms 1 Two Sum 2 5 array sort set Two Pointers 2 Add Two Numbers 3 4 linked list Two Pointers Math 3 Longest Substring With…

LeetCode All in One 题目讲解汇总(转...)

终于将LeetCode的免费题刷完了,真是漫长的第一遍啊,估计很多题都忘的差不多了,这次开个题目汇总贴,并附上每道题目的解题连接,方便之后查阅吧~ 如果各位看官们,大神们发现了任何错误,或是代码无法通过OJ,或是有更好的解法,或是有任何疑问,意见和建议的话,请一定要在对应的帖子下面评论区留言告知博主啊(如果不方便注册博客园的话,可以下载下文提到的APP,在Feedback中给博主发邮件交流哈),同时也请大家踊跃地,大量地,盲目地提供各个题目的follow up一起讨论哈,多谢多谢,祝大家刷得愉快…

LeetCode - 49. Group Anagrams

49. Group Anagrams Problem's Link ---------------------------------------------------------------------------- Mean: 给定一个由string类型构成的集合,让你按照每个字符串的单词构成集合来将这个集合分类. analyse: STL的运用. Time complexity: O(N) view code /** * ---------------------------------…

LeetCode 49: 字母异位词分组 Group Anagrams

LeetCode 49: 字母异位词分组 Group Anagrams 题目: 给定一个字符串数组,将字母异位词组合在一起.字母异位词指字母相同,但排列不同的字符串. Given an array of strings, group anagrams together. 示例: 输入: ["eat", "tea", "tan", "ate", "nat", "bat"], 输出: [ […

刷题49. Group Anagrams

一.题目说明题目是49. Group Anagrams,给定一列字符串,求同源词(包含相同字母的此)的集合.题目难度是Medium. 二.我的做法题目简单,就不多说,直接上代码: class Solution{ public: vector<vector<string>> groupAnagrams(vector<string>& strs) { vector<vector<string>> res; if(strs.size()&l…

49. Group Anagrams - LeetCode

Question 49. Group Anagrams Solution 思路:维护一个map,key是输入数组中的字符串(根据字符排好序) Java实现: public List<List<String>> groupAnagrams(String[] strs) { Map<String, List<String>> map = new HashMap<>(); for (String str : strs) { String key = g…

49. Group Anagrams

Given an array of strings, group anagrams together. For example, given: ["eat", "tea", "tan", "ate", "nat", "bat"], Return: [ ["ate", "eat","tea"], ["nat",…

leetcode@ [49] Group Anagrams (Hashtable)

https://leetcode.com/problems/anagrams/ Given an array of strings, group anagrams together. For example, given: ["eat", "tea", "tan", "ate", "nat", "bat"], Return: [ ["ate", "eat&q…

【LeetCode】49. Group Anagrams

题目: Given an array of strings, group anagrams together. For example, given: ["eat", "tea", "tan", "ate", "nat", "bat"], Return: [ ["ate", "eat","tea"], ["nat&qu…

【一天一道LeetCode】#49. Group Anagrams

一天一道LeetCode系列 (一)题目 Given an array of strings, group anagrams together. For example, given: ["eat", "tea", "tan", "ate", "nat", "bat"], Return: [ ["ate", "eat","tea"…

[leetcode]49. Group Anagrams变位词归类

Given an array of strings, group anagrams together. Example: Input: ["eat", "tea", "tan", "ate", "nat", "bat"], Output: [ ["ate","eat","tea"], ["nat","…

LeetCode OJ 49. Group Anagrams

题目 Given an array of strings, group anagrams together. For example, given: ["eat", "tea", "tan", "ate", "nat", "bat"], Return: [ ["ate", "eat","tea"], ["nat&quo…

LeetCode 49 Group Anagrams（字符串分组）

题目链接: https://leetcode.com/problems/anagrams/?tab=Description Problem:给一个字符串数组,将其中的每个字符串进行分组,要求每个分组中的各个字符串所包含的字母都相同对字母的前后顺序没有要求! 使用 Map<String, List<String>> map 进行求解给定的字符串数组为 String[] strs 1.当strs为空时返回new ArrayList<List<Strin…

49. Group Anagrams (string, HashTable)