Valid Anagram
Given two strings s and t, write a function to determine if t is an anagram of s.
For example,
s = "anagram", t = "nagaram", return true.
s = "rat", t = "car", return false.
Note:
You may assume the string contains only lowercase alphabets.
class Solution {public: bool isAnagram(string s, string t) { vector<int> count(26, 0); for(int i = 0; i < s.size(); i ++) count[s[i]-‘a‘] ++; for(int i = 0; i < t.size(); i ++) count[t[i]-‘a‘] --; for(int i = 0; i < 26; i ++) if(count[i] != 0) return false; return true; }};class Solution {public: bool isAnagram(string s, string t) { sort(s.begin(), s.end()); sort(t.begin(), t.end()); return s == t; }};
原文：http://www.cnblogs.com/dylqt/p/5587380.html