View Compilation Error

0_0_31775852_5873.cpp: In function 'll query(TrieNode, ll, ll)':
0_0_31775852_5873.cpp:63:53: 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%'
                 ans=(ans+(p->next[j]->sum*pow(2,i))%mod)%mod;
                                                     ^