View Compilation Error

0_0_36801735_27088.cpp: In function 'void MAIN::add(int&, const int&)':
0_0_36801735_27088.cpp:73:17: error: 'kcz' was not declared in this scope
         x+=y,x>=kcz?x-=kcz:1;
                 ^
0_0_36801735_27088.cpp: In function 'int MAIN::Add(const int&, const int&)':
0_0_36801735_27088.cpp:76:21: error: 'kcz' was not declared in this scope
         return x+y>=kcz?x+y-kcz:x+y;
                     ^
0_0_36801735_27088.cpp: In function 'int MAIN::mul(const int&, const int&)':
0_0_36801735_27088.cpp:79:28: error: 'kcz' was not declared in this scope
         return int(1LL*x*y%kcz);
                            ^
0_0_36801735_27088.cpp: In function 'void MAIN::MAIN()':
0_0_36801735_27088.cpp:108:75: 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_36801735_27088.cpp:81:16: note: declared here
     inline int qpow(res x,res y){
                ^