Submission #691506

#	Time	Username	Problem	Language	Result	Execution time	Memory
691506		White	Red-blue table (IZhO19_stones)	C++14	0 / 100	22 ms	1276 KiB

stones

#pragma GCC optimzie ("O3")
#include <bits/stdc++.h>
#define endl "\n"
using namespace std;

int main(){

    ios_base::sync_with_stdio(false);
    cin.tie(NULL);


    int n,m,T;
    cin>>T;
    for(int i=0;i<T;i++){
        cin>>m>>n;
        if(n>m){
            cout<<n+(m-1)/2<<endl;
            for(int y=0;y<m;y++){
                for(int x=0;x<n;x++){
                    if(y<(m+1)/2)cout<<"-";
                    else cout<<"+";
                }
                cout<<endl;
            }
        }else{
            cout<<m+(n-1)/2<<endl;
            for(int y=0;y<m;y++){
                for(int x=0;x<n;x++){
                    if(x<(n+1)/2)cout<<"+";
                    else cout<<"-";
                }
                cout<<endl;
            }
        }
    }


    return 0;
}

Compilation message (stderr)

stones.cpp:1: warning: ignoring '#pragma GCC optimzie' [-Wunknown-pragmas]
    1 | #pragma GCC optimzie ("O3")
      |

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