Submission #898043

#	Time	Username	Problem	Language	Result	Execution time	Memory
898043		vjudge1	Red-blue table (IZhO19_stones)	C++17	27 / 100	19 ms	1372 KiB

stones

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

int t, n, m, ans;

signed main() {
  ios::sync_with_stdio(false); cin.tie(nullptr);

  cin >> t;
  while (t--) {
    cin >> n >> m;
    if (n > m) {
      ans = n + (m-1)/2;

      cout << ans << "\n";
      for (int i = 0; i < n; i++) {
        for (int j = 0; j < m; j++) {
          if (j <= m/2) cout << '+';
          else cout << '-';
        }
        cout << "\n";
      }
    }
    else {
      ans = m + (n-1)/2;

      cout << ans << "\n";
      for (int i = 0; i < n; i++) {
        for (int j = 0; j < m; j++) {
          if (i <= n/2) cout << '-';
          else cout << '+';
        }
        cout << "\n";
      }
    }
  }
}

• Subtask 1: 17 / 17
• Subtask 2: 10 / 10
• Subtask 3: 0 / 16
• Subtask 4: 0 / 11
• Subtask 5: 0 / 15
• Subtask 6: 0 / 31