제출 #972183

#제출 시각아이디문제언어결과실행 시간메모리
972183colossal_pepeRed-blue table (IZhO19_stones)C++17
27 / 100
17 ms1624 KiB
#include <bits/stdc++.h>
using namespace std;

int t, n, m;

int main() {
	ios_base::sync_with_stdio(false);
	cin.tie(NULL);
	cin >> t;
	while (t--) {
		cin >> n >> m;
		if (n + (m - 1) / 2  >= m + (n - 1) / 2) {
			cout << n + (m - 1) / 2 << '\n';
			for (int i = 0; i < n; i++) {
				for (int j = 0; j < m; j++) {
					if (j < (m - 1) / 2) cout << '-';
					else cout << '+';
				}
				cout << '\n';
			}
		} else {
			cout << m + (n - 1) / 2 << '\n';
			for (int i = 0; i < n; i++) {
				for (int j = 0; j < m; j++) {
					if (i < (n - 1) / 2) cout << '+';
					else cout << '-';
				}
				cout << '\n';
			}
		}

	}
	return 0;
}
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