View Compilation Error

0_0_17931700_6631.cpp: In function 'long long int getC(int, int)':
0_0_17931700_6631.cpp:39:64: error: invalid operands of types '__gnu_cxx::__promote_2<long long int, long long int, double, double>::__type {aka double}' and 'const long long int' to binary 'operator%'
     return multi[n] * pow(multi[n - m]*multi[m]%Mod,Mod - 2) % Mod;
                                                                ^