View Compilation Error

0_0_29261439_32218.cpp: In function 'int main()':
0_0_29261439_32218.cpp:52:47: error: 'kuaisupow' was not declared in this scope
   else if(n==2) printf("%I64d\n",kuaisupow(a,b)%p);
                                               ^
0_0_29261439_32218.cpp:56:35: error: 'kuaisupow' was not declared in this scope
    printf("%I64d\n",kuaisupow(a,_a)%p);
                                   ^