Submission #1353640

#	Time	Username	Problem	Language	Result	Execution time	Memory
1353640		Newtonabc	Red-blue table (IZhO19_stones)	C++20	27 / 100	10 ms	1276 KiB

stones

#include<bits/stdc++.h>
using namespace std;
void solve(){
    int n,m; cin>>n >>m;
    if(n<=m){
        cout<<n+m-(n+2)/2;
        cout<<"\n";
        int del=(n+2)/2;
        for(int i=1;i<=n;i++){
            for(int j=1;j<=m;j++){
                if(i<=del) cout<<"-";
                else cout<<"+";
            }
            cout<<"\n";
        }
    }
    else{
        cout<<n+m-(m+2)/2 <<"\n";
        int del=(m+2)/2;
        for(int i=1;i<=n;i++){
            for(int j=1;j<=m;j++){
                if(j<=del) cout<<"+";
                else cout<<"-";
            }
            cout<<"\n";
        }
    }
}
int main(){
    ios_base::sync_with_stdio(0);
    cin.tie(0);
    int t; cin>>t;
    while(t--){
        solve();
    }
}

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