View Compilation Error

0_0_35281308_19163.cpp: In function 'int main()':
0_0_35281308_19163.cpp:51:22: error: 'f' was not declared in this scope
    else ans=(ans+1ll*f[i]*(gg[i]==1?1:(k+1))%M)%M;
                      ^
0_0_35281308_19163.cpp:51:28: error: 'gg' was not declared in this scope
    else ans=(ans+1ll*f[i]*(gg[i]==1?1:(k+1))%M)%M;
                            ^