View Compilation Error

0_0_19903802_25872.cpp: In function 'int main()':
0_0_19903802_25872.cpp:95:75: error: expected ';' before ')' token
                     add_edge(i,tt,(abs(px[i]-px[tt])+abs(py[i]-py[tt]))*b));
                                                                           ^
0_0_19903802_25872.cpp:97:76: error: invalid operands of types 'void' and 'long long int' to binary 'operator+'
                     add_edge(i,tt,(abs(px[i]-px[tt])+abs(py[i]-py[tt]))*b)+c);
                                                                            ^