Submission #2994667

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Source Code Expand

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

string s;
int n, a[26], b[26];

int main() {
    iostream::sync_with_stdio(0); cin.tie(0);
    memset(a, 63, sizeof(a));
    cin >> n;
    for(int i = 0; i < n; i++) {
        cin >> s;
        memset(b, 0, sizeof(b));
        for(int j = 0; j < s.length(); j++) b[s[j]-'a']++;
        for(int j = 0; j < 26; j++) a[j] = min(a[j], b[j]);
    }
    for(int i = 25; i >= 0; i--) {
        for(int j = 0; j < a[i]; j++) cout << (char) ('a' + i);
    }
}

Submission Info

Judge Result