View Compilation Error

0_0_18159264_31654.cpp: In function 'long long int c(long long int, long long int)':
0_0_18159264_31654.cpp:43:61: error: expected ';' before ')' token
     else return (hd(x)*ksm(hd(y),mo-2))%mo*ksm(hd(x-y),mo-2))%mo;
                                                             ^
0_0_18159264_31654.cpp:43:61: error: expected primary-expression before ')' token