Submission #432753

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Source Code Expand

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

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

#define rep(i,n) for(int i=0;i<n;i++)
#define pb push_back
#define inf INT_MAX/4
#define ALL(v) v.begin(),v.end()

int main(void){
  cin.tie(0);
  ios::sync_with_stdio(false);
  string str;
  int N;
  vector<string> v;

  cin >> str >> N;
  for(int i = 0; i < 5; i++){
    for(int j = 0; j < 5; j++){
      string tmp;
      tmp.pb(str[i]);
      tmp.pb(str[j]);
      v.pb(tmp);
    }
  }

  sort(begin(v), end(v));

  // for(auto val: v) cout << val << endl;

  cout << v[N-1] << endl;


  return 0;
}

Submission Info

Judge Result