제출 #868056

#제출 시각아이디문제언어결과실행 시간메모리
868056alexddRed-blue table (IZhO19_stones)C++17
27 / 100
18 ms1372 KiB
#include<bits/stdc++.h>
using namespace std;
int n,m;
signed main()
{
    ios_base::sync_with_stdio(0);cin.tie(0);
    int t;
    cin>>t;
    while(t--)
    {
        cin>>n>>m;
        if(m+(n-1)/2 > n+(m-1)/2)
        {
            cout<<m+(n-1)/2<<"\n";
            for(int i=1;i<=n;i++)
            {
                for(int j=1;j<=m;j++)
                {
                    if(i<=n-(n-1)/2)
                        cout<<'-';
                    else
                        cout<<'+';
                }
                cout<<"\n";
            }
        }
        else
        {
            cout<<n+(m-1)/2<<"\n";
            for(int i=1;i<=n;i++)
            {
                for(int j=1;j<=m;j++)
                {
                    if(j<=m-(m-1)/2)
                        cout<<'+';
                    else
                        cout<<'-';
                }
                cout<<"\n";
            }
        }
    }
    return 0;
}
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