1657. Determine if Two Strings Are Close

class Solution {
public:
    bool closeStrings(string word1, string word2) {
        if (word1.size()!=word2.size())
        return false;
        map<int,int> m1;
        map<int,int> m2;
        for(int i=0;i<word1.size();i++){
            m1[word1[i]-'a']++;
            m2[word2[i]-'a']++;
        }
        for(int i=0;i<word2.size();i++){
            if(m1[word2[i]-'a']==0)
            return false;
        }
        vector<int> v1;
        vector<int> v2;
        for(auto i:m1){
            v1.push_back(i.second);
        }
        sort(v1.begin(),v1.end());
        for(auto i:m2){
            v2.push_back(i.second);
        }
        sort(v2.begin(),v2.end());
        return (v1==v2);
    }
};