Submission #342314

#	Time	Username	Problem	Language	Result	Execution time	Memory
342314		_ani	Red-blue table (IZhO19_stones)	C++17	11 / 100	46 ms	1388 KiB

stones

#include <iostream>
#include <vector>
#include <algorithm>
using namespace std;
char s[1002][1002];
int main()
{
	int t;
	cin >> t;
	while (t--)
	{
		int n, m;
		cin >> n >> m;
		if (min(n, m) > 2)
		{
			int ans = n + m - 2;
			if (n % 2 == 0)ans--;
			if (m % 2 == 0)ans--;
			cout << ans << '\n';
			int a = n, b = m;
			if (a % 2)a--;
			else a -= 2;
			if (b % 2)b--;
			else b -= 2;
			for (int i = 0; i < n; i++) {
				for (int j = 0; j < m; j++)
				{
					if (i < a / 2 && j < b / 2)
						cout << '-';
					else if (i >= a / 2 && i < a && j >= b / 2 && j < b)
						cout << '-';
					else if (i >= a)
						cout << '-';
					else if (j >= b)
						cout << '+';
					else cout << '+';
				}
				cout << '\n';
			}
		}
		else
		{
			cout << max(m, n) << '\n';
			char d;
			if (m > n)
				d = '-';
			else d = '+';
			for (int i = 0; i < n; i++)
			{
				for (int j = 0; j < m; j++)
					cout << d;
				cout << '\n';
			}
		}
	}
	return 0;
}

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