제출 #874331

#제출 시각아이디문제언어결과실행 시간메모리
874331tvladm2009Red-blue table (IZhO19_stones)C++17
27 / 100
18 ms1372 KiB
#include <bits/stdc++.h> using namespace std; typedef long long ll; int main() { ios::sync_with_stdio(false); cin.tie(0); int t; cin >> t; while (t--) { int n, m; cin >> n >> m; if (n + (m % 2 ? m / 2 : m / 2 - 1) >= m + (n % 2 ? n / 2 : n / 2 - 1)) { cout << n + (m % 2 ? m / 2 : m / 2 - 1) << "\n"; for (int i = 1; i <= n; ++i) { for (int j = 1; j <= m; ++j) { if (j <= m / 2 + 1) { cout << "+"; } else { cout << "-"; } } cout << "\n"; } } else { cout << m + (n % 2 ? n / 2 : n / 2 - 1) << "\n"; for (int i = 1; i <= n; ++i) { for (int j = 1; j <= m; ++j) { if (i <= n / 2 + 1) { cout << "-"; } else { cout << "+"; } } cout << "\n"; } } } return 0; }
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