Submission #1338323

#	Time	Username	Problem	Language	Result	Execution time	Memory
1338323		poapaa.	Red-blue table (IZhO19_stones)	C++20	0 / 100	11 ms	1244 KiB

stones

#include <iostream>
#include <vector>

using namespace std;

void solve() {
    int n, m, i, j;
    cin >> n >> m;
    if( n > m ) {
        cout << m + n - ( m / 2 + 1 ) << '\n';
        for( i = 0; i < n; i++ ) {
            for( j = 0; j < m; j++ ) {
                if( i < m / 2 + 1 )
                    if( i <= j )
                        cout << '-';
                    else
                        cout << '+';
                else
                    cout << '-';
            }
            cout << '\n';
        }
    } else {
        cout << n + m - ( n / 2 + 1 ) << '\n';
        for( i = 0; i < n; i++ ) {
            for( j = 0; j < m; j++ ) {
                if( j < n / 2 + 1 ) {
                    if( i >= j )
                        cout << '+';
                    else
                        cout << '-';
                } else {
                    cout << '+';
                }
            }
            cout << '\n';
        }
    }
}

int main() {
    int t;
    cin >> t;
    while( t-- ) {
        solve();
    }
    return 0;
}

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