DLU-1033 找到你了！M-I-K-U！

 1 #include <stdio.h>
 2 #include <stdlib.h>
 3 #include <malloc.h>
 4 #include <string.h>
 5 #include <stdbool.h>
 6 #include <math.h>
 7  
 8  
 9 bool FindYourMiku(char **board,char *MIKU,int cur_x,int cur_y,int sizeRow,int sizeCol,int MikuStart)
10 {
11     if(MikuStart == 4)
12         return true;
13     else if(cur_x<0 || cur_x>=sizeRow || cur_y<0 || cur_y>=sizeCol
14         ||  board[cur_x][cur_y] != MIKU[MikuStart])
15         return false;
16  
17     board[cur_x][cur_y] ^= 255;//mark to avoid endless loop
18     bool result = ( FindYourMiku(board,MIKU,cur_x-1,cur_y,sizeRow,sizeCol,MikuStart+1)
19                 ||  FindYourMiku(board,MIKU,cur_x,cur_y-1,sizeRow,sizeCol,MikuStart+1)
20                 ||  FindYourMiku(board,MIKU,cur_x+1,cur_y,sizeRow,sizeCol,MikuStart+1)
21                 ||  FindYourMiku(board,MIKU,cur_x,cur_y+1,sizeRow,sizeCol,MikuStart+1) );
22     board[cur_x][cur_y] ^= 255;
23     return result;
24 }
25  
26 bool exist(char **board,char *MIKU,int sizeRow,int sizeCol)
27 {
28     if(sizeRow<=0)
29         return false;
30  
31     int i,j;
32     for(i = 0;i < sizeRow;i ++)
33     {
34         for(j = 0;j < sizeCol;j ++)
35         {
36             if(board[i][j] == 'M')
37             {
38                 bool isFind = FindYourMiku(board,MIKU,i,j,sizeRow,sizeCol,0);
39                 //printf("GOOD
");
40                 if(isFind==true)
41                     return true;
42             }
43         }
44     }
45     return false;
46 }
47  
48 int main()
49 {
50     int m,n;
51     int i,j;
52     while(~scanf("%d %d",&m,&n))
53     {
54         char **board = (char**)malloc(m*sizeof(char*));
55         for(i = 0;i < m;i ++)
56         {
57             board[i] = (char*)malloc(n*sizeof(char));
58         }
59         getchar();
60         for(i = 0;i < m;i ++)
61         {
62             for(j = 0;j < n;j ++)
63             {
64                 scanf("%c",&board[i][j]);
65                 getchar();
66             }
67         }
68         char MIKU[4] = {'M','I','K','U'};
69         bool result = exist(board,MIKU,m,n);
70         if(result==true)
71             printf("mitsuketa!
");
72         else
73             printf("zannen
");
74     }
75     return 0;
76 }