sort vector of strings in terms of lengths of strings

Given a vector<string>words . sort the vector on the basis of length of strings present in the vector. 

#include<bits/stdc++.h> using namespace std; bool comparator(string &s1, string &s2) {     return s1.length() < s2.length(); } void print(vector<string>&words) {     for(int i =0 ; i< words.size() ; i++)     {         cout << words[i] << " " ;     } } int main() {         vector<string>words = {"a", "sgud", "sjs", "ahjdh", "ahsjkskla"};     sort(words.begin(), words.end(), comparator);     print(words);     }