The Pilots Brothers' refrigerator

 1 #include<stdio.h>
 2 #include<string.h>
 3 int arr[4][4];//存储状态
 4 int main()
 5 {
 6     int i,j;
 7     char ch;
 8     memset(arr[0],0,sizeof(arr[0]));
 9     for (i = 0; i < 4; i ++)
10     {
11         for (j = 0; j < 4; j ++)
12         {
13             ch = getchar();
14             if(ch=='+')
15             {
16                 arr[i][j] = !arr[i][j];
17                 for (int k = 0; k < 4; k ++)
18                 {
19                     arr[i][k] = !arr[i][k];
20                     arr[k][j] = !arr[k][j];
21                 }
22             }
23         }
24         getchar();
25     }
26     int ans = 0;
27     for (i = 0; i < 4; i ++)
28     {
29         for (j = 0 ; j < 4; j ++)
30         {
31             if(arr[i][j])//状态为1的为需要转换的位置
32                 ans++;
33         }
34     }
35     printf("%d
",ans);
36     for (i = 0; i < 4; i ++)
37     {
38         for (j = 0; j < 4; j ++)
39         {
40             if(arr[i][j])
41                 printf("%d %d
",i+1,j+1);
42         }
43     }
44     return 0;
45 }
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