四分树

 1 #include<cstdio>
 2 #include<cstring>
 3 
 4 const int len = 32;
 5 const int maxn = 1024 + 10;
 6 char s[maxn];
 7 int buf[len][len], cnt;
 8 
 9 void draw(const char* s, int& p, int r, int c, int w) {
10     char ch = s[p++];
11     if (ch == ‘p‘) {
12         draw(s, p, r, c + w / 2, w / 2);
13         draw(s, p, r, c, w / 2);
14         draw(s, p, r + w / 2, c, w / 2);
15         draw(s, p, r + w / 2, c + w / 2, w / 2);
16     }
17     else if (ch == ‘f‘) {
18         for (int i = r; i < r + w; i++)
19             for (int j = c; j < c + w; j++)
20                 if (buf[i][j] == 0) {
21                     buf[i][j] = 1; cnt++;
22                 }
23     }
24 }
25 
26     int main() {
27         int T;
28         scanf_s("%d", &T);
29         while (T--) {
30             memset(buf, 0, sizeof(buf));
31             cnt = 0;
32             for (int i = 0; i < 2; i++) {
33                 scanf_s("%s", s);
34                 int p = 0;
35                 draw(s, p, 0, 0, len);
36             }
37             printf("There are %d black pixels .\n", cnt);
38         }
39         return 0;
40     }