View Compilation Error

0_0_36801749_7587.cpp: In function 'void MAIN::MAIN()':
0_0_36801749_7587.cpp:111:75: error: too few arguments to function 'int MAIN::qpow(int, int)'
             for(res i=0;i<sz;i++)add(ret,mul(mul(d[i],pw[pc(i)]),qpow(b[i])));
                                                                           ^
0_0_36801749_7587.cpp:84:16: note: declared here
     inline int qpow(res x,res y){
                ^