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Submission #503127

# Submission time Handle Problem Language Result Execution time Memory
503127 2022-01-07T10:12:47 Z AzamatRustamov Red-blue table (IZhO19_stones) C++14
100 / 100
 24 ms 2164 KB 
#include <iostream>
using namespace std;

void solve()
{
	int n, m;
	cin >> n >> m;
	bool swapped = false;
	if (n < m)
	{
		int t = n;
		n = m, m = t, swapped = true;
	}
	char a[n][m];
	for (int i=0; i<n; i++) for (int j=0; j<m; j++) a[i][j] = '+';
	int ans = n, x = 0, c = 0;
	for (int k=0; k<(m-1)/2; k++) for (int y=0; y<n; y++)
	{
		a[y][x] = '-', c++;
		if (c == n/2+1) x++, c=0, ans++;
	}
	cout << ans << '\n';
	if (!swapped) for (int i=0; i<n; i++)
	{
		for (int j=0; j<m; j++) cout << a[i][j];
		cout << '\n';
	}
	else for (int j=0; j<m; j++)
	{
		for (int i=0; i<n; i++) cout << (a[i][j]=='+'?'-':'+');
		cout << '\n';
	}
}

int main()
{
	ios_base::sync_with_stdio(false), cin.tie(0), cout.tie(0);
	int t;
	cin >> t;
	while(t--) solve();
	return 0;
}

Subtask #1
17.0 / 17.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 204 KB Output is correct
2 Correct 0 ms 204 KB Output is correct

Subtask #2
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 312 KB Output is correct

Subtask #3
16.0 / 16.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 204 KB Output is correct
2 Correct 0 ms 204 KB Output is correct
3 Correct 2 ms 312 KB Output is correct
4 Correct 2 ms 316 KB Output is correct

Subtask #4
11.0 / 11.0

# Verdict Execution time Memory Grader output
1 Correct 23 ms 1220 KB Output is correct
2 Correct 19 ms 1844 KB Output is correct
3 Correct 19 ms 1868 KB Output is correct

Subtask #5
15.0 / 15.0

# Verdict Execution time Memory Grader output
1 Correct 21 ms 1292 KB Output is correct
2 Correct 24 ms 1580 KB Output is correct
3 Correct 16 ms 1328 KB Output is correct

Subtask #6
31.0 / 31.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 204 KB Output is correct
2 Correct 0 ms 204 KB Output is correct
3 Correct 2 ms 312 KB Output is correct
4 Correct 2 ms 316 KB Output is correct
5 Correct 23 ms 1220 KB Output is correct
6 Correct 19 ms 1844 KB Output is correct
7 Correct 19 ms 1868 KB Output is correct
8 Correct 21 ms 1292 KB Output is correct
9 Correct 24 ms 1580 KB Output is correct
10 Correct 16 ms 1328 KB Output is correct
11 Correct 8 ms 440 KB Output is correct
12 Correct 16 ms 1468 KB Output is correct
13 Correct 17 ms 1328 KB Output is correct
14 Correct 13 ms 1008 KB Output is correct
15 Correct 21 ms 2164 KB Output is correct
16 Correct 16 ms 1740 KB Output is correct
17 Correct 8 ms 844 KB Output is correct