Submission #523782

#	Time	Username	Problem	Language	Result	Execution time	Memory
523782		veos	Red-blue table (IZhO19_stones)	C++11	100 / 100	42 ms	2248 KiB

stones

#include <iostream>
using namespace std;
int main(){
	int k;
	cin>>k;
	while(k>0){
		int n,m;
		cin>>n>>m;
		char swapped=false;
		if(n<m){
			m^=n^=m^=n;
			swapped=true;
		}
		char b[n][m];
		for(int i=0;i<n;i++){
			for(int y=0;y<m;y++){
				b[i][y]='+';
			}
		}
		int ans=n;
		int c=0,x=0;
		for(int i=0;i<(m-1)/2;i++){
			for(int y=0;y<n;y++){
				b[y][x]='-';
				c++;
				if(c==n/2+1){
					x++;
					c=0;
					ans++;
				}
			}
		}
		cout<<ans<<endl;
		if(!swapped){
			for(int y=0;y<n;y++){
				for(int x=0;x<m;x++){
					cout<<b[y][x];
				}
				cout<<"\n";
			}
		}
		else{
			for(int y=0;y<m;y++){
				for(int x=0;x<n;x++){
					cout<<(b[x][y]=='+'?'-':'+');
				}
				cout<<"\n";
			}
		}
		k--;
	}
	//Matchonov Muhammad
}

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