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242. Valid Anagram

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Problem Statement

242. Valid Anagram

Easy


Given two strings s and t, return true if t is an anagram of s, and false otherwise.

An Anagram is a word or phrase formed by rearranging the letters of a different word or phrase, typically using all the original letters exactly once.

 

Example 1:

Input: s = "anagram", t = "nagaram"
Output: true

Example 2:

Input: s = "rat", t = "car"
Output: false

 

Constraints:

 

Follow up: What if the inputs contain Unicode characters? How would you adapt your solution to such a case?

C++

Source file
class Solution {
public:
    bool isAnagram(string s, string t) {
        if (s.length()!=t.length())
            return false;
        map <char, int> m;
        for(int i=0; i<s.length(); i++)
            m[s[i]]++;
        for(int i=0; i<t.length(); i++)
            m[t[i]]--;
        for(auto e:m)
            if(e.second!=0)
                return false;
        return true;
    }
};