Submission #8322179

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Source Code Expand

#include <iostream>
#include <vector>
#include <algorithm>
#include <set>
#include <queue>
using namespace std;
typedef long long int ll;


int main(){
	cin.tie(nullptr);
	ios::sync_with_stdio(false);
    string s; cin >> s;
    sort(s.begin(),s.end());
    s.erase(unique(s.begin(),s.end()),s.end());
    for(char c:s){
        cout << c << c;
    }
    cout << endl;
}

Submission Info

Judge Result