Submission #712799

#	Time	Username	Problem	Language	Result	Execution time	Memory
712799		willychan	Red-blue table (IZhO19_stones)	C++14	0 / 100	26 ms	1504 KiB

stones

#include<bits/stdc++.h>
using namespace std;
typedef long long ll;
//#include<bits/extc++.h>
//__gnu_pbds


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

int main(){
	ios_base::sync_with_stdio(0),cin.tie(0),cout.tie(0);
	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