Submission #1681166

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Source Code Expand

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

#define INF 1.1e9
#define LINF 1.1e18
#define FOR(i,a,b) for (int i = (a); i < (b); ++i)
#define REP(i,n) FOR(i,0,n)
#define ALL(v) (v).begin(), (v).end()

typedef long long ll;
typedef pair<ll, int> P;

int n;
string s;
int cnt[26];
string a="abcdefghijklmnopqrstuvwxyz";

int main(){
	cin.tie(0);
	ios::sync_with_stdio(false);

	cin>>n;
	REP(i,n) {
		int tmp[26]={0};
		cin>>s;
		REP(i,s.size()) {
			tmp[s[i]-'a']++;
		}
		if(i==0) {
			REP(i,26) cnt[i]=tmp[i];
		}
		else {
			REP(i,26) cnt[i]=min(tmp[i],cnt[i]);
		}
	}
	REP(i,26) {
		REP(j,cnt[i]) cout<<a[i]<<flush;
	}
	cout<<endl;

	return 0;
}

Submission Info

Judge Result