Submission #1686044

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Source Code Expand

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

int N;
std::string abc = "abcdefghijklmnopqrstuvwxyz";
std::string S;
int ans[26];
int INF = 1 << 30;

int main() {
	std::cin >> N;
	for (int i = 0; i < 26; i++) {
		ans[i] = INF;
	}
	for (int i = 0; i < N; i++) {
		std::cin >> S;
		int aa[26] = {};
		for (int j = 0; j < (int)S.size(); j++) {
			aa[S[j] - 'a']++;
		}
		for (int j = 0; j < 26; j++) {
			ans[j] = std::min(ans[j], aa[j]);
		}
	}
	for (int i = 0; i < 26; i++) {
		for (int j = 0; j < ans[i]; j++) {
			std::cout << abc[i];
		}
	}
	std::cout << std::endl;
	return 0;
}

Submission Info

Judge Result