Cacher is the code snippet organizer for pro developers

#include <bits/stdc++.h>
using namespace std;

int main() {
	string s;
	cin >> s;
	int n = s.size();
    map<char,int>m1;
    map<int,int>m2;
	
	for(int i = 0;i < n;i++){
		m1[s[i]]++;
		m2[m1[s[i]]]++;
		if(m2[m1[s[i]] - 1] != 0){
			m2[m1[s[i]] - 1]--;
		}
	}
	for(auto it = m2.begin();it != m2.end();it++){
		cout << it->first << " "<< it->second << endl;
	}
	return 0;
}