Submission #1152587

#	Time	Username	Problem	Language	Result	Execution time	Memory
1152587		YSH2020	Zagrade (COI20_zagrade)	C++20	0 / 100	0 ms	416 KiB

zagrade

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

int main() {
  int n, q; cin >> n >> q;
  int ans[n];
  //suppose this is a valid bracket sequence.
  for (int j = 0; j < n; j++) {
    int started = 0;
    for (int i = j+1; i <= n-1; i += 2) {
      cout << "? " << ' ' << j+1 << ' ' << i+1 << '\n';
      int x; cin >> x;
      if (x == 1) {started = 1; break;}
    }
    if (started) ans[j] = 1;
    else ans[j] = 0;
  }
  cout << "! ";
  for (int i = 0; i < n; i++) {
    if (ans[i] == 0) cout << '(';
    else cout << ')';
  }
}

• Subtask 1: 0 / 14
• Subtask 2: 0 / 7
• Subtask 3: 0 / 57
• Subtask 4: 0 / 22