View Compilation Error

0_0_21941920_11629.cpp: In function 'int main()':
0_0_21941920_11629.cpp:38:5: error: 'p' was not declared in this scope
     p = i;
     ^
0_0_21941920_11629.cpp:43:38: error: 'p' was not declared in this scope
         printf("%d 1 %d\n", n, f[cnt[p]--][p]);  
                                      ^