Algorithm/2850.txt at master · Tachone/Algorithm · GitHub

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#include<iostream>
using namespace std;
int main()
{
	int a[15][15];
	int i,j,k;
	for(int m,n;cin>>m>>n&&n!=0&&m!=0;)
	{
		for(j=1;j<=m;j++)
		for(k=1;k<=n;k++)
		cin>>a[j][k];
		bool it=true;
		for(j=1;j<=m;j++)
		for(k=1;k<=n;k++)
		{
			if(a[j][k]==0)
			{
				if(j-1>0)
				{
					if(a[j-1][k]==0)
					it=false;
				}
				if(j+1<=m)
				{
					if(a[j+1][k]==0)
					it=false;
				}
				if(k-1>0)
				{
					if(a[j][k-1]==0)
					it=false;
				}
				if(k+1<=n)
				{
					if(a[j][k+1]==0)
					it=false;
				}
			}
		}
		int sum=0;
		for(j=1;j<=m;j++)
		for(k=1;k<=n;k++)
		{
			if(a[j][k]==1)
		       sum++;

		}
		if(sum==m*n)
		it=false;
		if(it==true)
		cout<<"Yes"<<endl;
		else
		cout<<"No"<<endl;


	}

	return 0;
}