poj 2677: 肿瘤检测

#include
using namespace std;
int main()
{
	int n;
	int map[110][110];
	cin>>n;
	for(int i=1;i<=n;i++)
		for(int j=1;j<=n;j++)
			cin>>map[i][j];
	int s = 0, c = 0;
	for(int i=1;i<=n;i++)
		for(int j=1;j<=n;j++)
		{
			if(map[i][j]<=50)
			{
				s++;
				if(map[i-1][j]>50||map[i+1][j]>50||map[i][j-1]>50||map[i][j+1]>50||i==1||j==1||i==n||j==n)
					c++;
			}
		} 
	
	cout<