View Compilation Error

193638_0_608.cpp
193638_0_608.cpp(5) : error C2146: syntax error : missing ';' before identifier 'x1'
193638_0_608.cpp(5) : error C2065: 'x1' : undeclared identifier
193638_0_608.cpp(5) : error C2065: 'x2' : undeclared identifier
193638_0_608.cpp(5) : error C2065: 'y2' : undeclared identifier
193638_0_608.cpp(22) : error C2107: illegal index, indirection not allowed
193638_0_608.cpp(22) : error C2112: pointer subtraction requires integral or pointer operand
193638_0_608.cpp(22) : error C2664: 'fabs' : cannot convert parameter 1 from 'double *' to 'double'
        There is no context in which this conversion is possible