View Code of Problem 42

#include<iomanip>
using namespace std;
int main()
{
	double a,b,c,dt,x1,x2;
	cin>>a>>b>>c;
	
	dt=sqrt(b*b-4*a*c);
	
	x1=(-b+dt)/(2*a);
	x2=(-b-dt)/(2*a);
	
	
	cout<<fixed<<setprecision(2)<<x1<<" "<<fixed<<setprecision(2)<<x2<<endl;
}
/*
Main.cc: In function 'int main()':
Main.cc:6:2: error: 'cin' was not declared in this scope
  cin>>a>>b>>c;
  ^~~
Main.cc:6:2: note: 'std::cin' is defined in header '<iostream>'; did you forget to '#include <iostream>'?
Main.cc:2:1:
+#include <iostream>
 using namespace std;
Main.cc:6:2:
  cin>>a>>b>>c;
  ^~~
Main.cc:8:5: error: 'sqrt' was not declared in this scope
  dt=sqrt(b*b-4*a*c);
     ^~~~
Main.cc:8:5: note: suggested alternative: 'qsort'
  dt=sqrt(b*b-4*a*c);
     ^~~~
     qsort
Main.cc:14:2: error: 'cout' was not declared in this scope
  cout<<fixed<<setprecision(2)<<x1<<" "<<fixed<<setprecision(2)<<x2<<endl;
  ^~~~
Main.cc:14:2: note: 'std::cout' is defined in header '<iostream>'; did you forget to '#include <iostream>'?
Main.cc:14:69: error: 'endl' was not declared in this scope
  cout<<fixed<<setprecision(2)<<x1<<" "<<fixed<<setprecision(2)<<x2<<endl;
                                                                     ^~~~
Main.cc:14:69: note: 'std::endl' is defined in header '<ostream>'; did you forget to '#include <ostream>'?
Main.cc:2:1:
+#include <ostream>
 using namespace std;
Main.cc:14:69:
  cout<<fixed<<setprecision(2)<<x1<<" "<<fixed<<setprecision(2)<<x2<<endl;
                                                                     ^~~~
*/