whats wrong in this code???

Question

#include <iostream>
using namespace std;
int main();
{
int a=;
int b=;
int c=;
int d=;
int x1=;
int x2=;
cout << "type a" endl;
cin >> a;
cout << "type b" endl;
cin >> b;
cout << "type c" endl;
cin >> c;
d = (b*b) - 4 * a*c;
if (d >= 0)
{
x1 = -b + (d / d) / 2 * a;
x2 = -b - (d / d) / 2 * a;
cout << "d =" << d << endl;
cout << "x1 =" << x1 << endl;
cout << "x2 =" << x2 << endl;
}
return 0;
};

Answer 1

Declare your variables without the equal sign, else it is intended to be an assignement, and need to have a right argument value ^^

Answer 2

visph is right...ideally you should give all of the variables a value after declared so you can put 0 of null after the =.
but beware of dividing by zero in your code, you should try/catch that error to avoid the program to break

Answer 3

try this code, i changed a few things so go over it

#include <iostream>
using namespace std;
int main()
{
int a;
int b;
int c;
int d;
int x1;
int x2;
cout << "type a"<<endl;
cin >> a;
cout << "type b"<<endl;
cin >> b;
cout << "type c"<<endl;
cin >> c;
d = (b*b) - 4 * a*c;
if (d >= 0)
{
x1 = -b + (d / d) / 2 * a;
x2 = -b - (d / d) / 2 * a;
cout << "d =" << d << endl;
cout << "x1 =" << x1 << endl;
cout << "x2 =" << x2 << endl;
}
return 0;
};

Answer 4

It should be work like this..
https://code.sololearn.com/cBFhsMw2h8Se/?ref=app