Submission #3610000

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Source Code Expand

#include <iostream>
#include <string>
#include <algorithm>
#include <vector>

#define INF 1000000000

using namespace std;

int main() {
    int n;
    string s;
    vector<int> a(26, INF), c(26);
    cin >> n;
    for (int i = 0; i < n; ++i) {
        fill(c.begin(), c.end(), 0);
        cin >> s;
        for (int j = 0; j < s.size(); ++j) ++c.at(s.at(j) - 'a');
        for (int j = 0; j < 26; ++j) a.at(j) = min(a.at(j), c.at(j));
    }
    for (int i = 0; i < 26; ++i) for (int j = 0; j < a.at(i); ++j) cout << char('a' + i);
    cout << endl;
    return 0;
}

Submission Info

Judge Result