POJ 2677：肿瘤检测

AC CODE:

 1 #include <stdio.h>
 2 
 3 int main()
 4 {
 5     int i,j,n;
 6     int o = 0,l = 0;
 7     int a[100][100];
 8     scanf("%d",&n);
 9     for(i = 0;i < n;i ++)
10     for(j = 0;j < n;j ++)
11         scanf("%d",&a[i][j]);
12     for(i = 0;i < n;i ++)
13     for(j = 0;j < n;j ++)
14     {
15         if(a[i][j] <= 50)
16         {
17             o ++;
18             if(!((a[i-1][j]<=50)&&(a[i+1][j]<=50)&&(a[i][j-1]<=50)&&(a[i][j+1]<=50)) || i == 0 || j == 0 || i == n-1 || j == n-1)
19                 l ++;
20         }
21     }
22     printf("%d %d\n",o,l);
23     return 0;
24 }