Submission #794924

#	Time	Username	Problem	Language	Result	Execution time	Memory
794924		gun_gan	Sequence (BOI14_sequence)	C++17	0 / 100	1 ms	212 KiB

sequence

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


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

      int K;
      cin >> K;

      vector<int> b(K);
      for(int i = 0; i < K; i++) cin >> b[i];

      if(!b[0]) {
            if(K == 1) {
                  cout << 0 << '\n';
                  return 0;
            } else {
                  int cur = 10, p = 1;
                  while(p < K) {
                        p = p * 10 + 1;
                        cur *= 10;
                  }

                  cout << cur << '\n';
                  return 0;
            }
      }

      if(b[0] == 9) {
            int cur = 0, p = 0;
            while(p < K) {
                  p = p * 10 + 1;
                  cur = cur * 10 + 8;
            }

            cur /= 10;
            cur = cur * 10 + 9;

            cout << cur << '\n';

            return 0;
      }

      int cur = b[0], p = 1;
      while(p < K) {
            p *= 10;
            cur *= 10;
      }

      cout << cur << '\n';
}

• Subtask 1: 0 / 9
• Subtask 2: 0 / 33
• Subtask 3: 0 / 25
• Subtask 4: 0 / 33