Submission #1515683

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Source Code Expand

#include <bits/stdc++.h>

using namespace std;

#define int long long
#define all(v) (v).begin(), (v).end()
#define resz(v, ...) (v).clear(), (v).resize(__VA_ARGS__)
#define reps(i, m, n) for(int i = (int)(m); i < (int)(n); i++)
#define rep(i, n) reps(i, 0, n)

template<class T1, class T2> void chmin(T1 &a, T2 b){if(a>b)a=b;}
template<class T1, class T2> void chmax(T1 &a, T2 b){if(a<b)a=b;}

typedef pair<int, int> Pi;
typedef tuple<int, int, int> Ti;
typedef vector<int> vint;

const int inf = 1LL << 55;
const int mod = 1e9 + 7;

signed main()
{
  cin.tie(0);
  ios_base::sync_with_stdio(0);
  cout << fixed << setprecision(12);

  int n;
  cin >> n;

  int al[55][26] = {{}};
  rep(i, n) {
    string s;
    cin >> s;
    rep(j, s.size()) al[i][s[j]-'a']++;
  }
  rep(i, 26) {
    int mn = inf;
    rep(j, n) chmin(mn, al[j][i]);
    rep(j, mn) cout << (char)(i+'a');
  }
  cout << endl;

  return 0;
}

Submission Info

Judge Result