View Compilation Error

0_0_21695771_28919.cpp: In function 'll solve()':
0_0_21695771_28919.cpp:35:72: error: invalid operands of types '__gnu_cxx::__promote_2<int, long long int, double, double>::__type {aka double}' and 'const ll {aka const long long int}' to binary 'operator%'
         dp[i]=(1*(2*i+1)*dp[i-1]+1*(3*i-3)*dp[i-2])%mod*pow(i+2,mod-2)%mod;
                                                                        ^