Program stop working *ERROR* when i hit compile and run

[faizankhan619]

Program stop working *ERROR* when i hit compile and run. I'm just a beginner please help

#include <stdio.h>
#include <conio.h>

int main(){

int a,b,c,x,y;
printf("We know that general form of quadratic eq is ax^2+bx+c=0 \n");
printf("Enter First Number of equation : \n");
scanf("\n%d",a);
printf("Enter 2nd Number of equation : ");
scanf("\n%d",b);
printf("Enter 3rd Number of equation : ");
scanf("\n%d",c);

getch();
return(0);
}

[Enoizat]

*ERROR*

That's the vaguest error message I've ever seen! :-D

Are you sure you can't give any further details?
Are you on a Windows machine? Are you sure there's conio.h on it?
What if you change your code this way?

#include <stdio.h>
/* #include <conio.h> */

int main()
{
   int a,b,c,x,y;
   printf("We know that general form of quadratic eq is ax^2+bx+c=0 \n");
   printf("Enter First Number of equation : \n");
   scanf("\n%d",a);
   printf("Enter 2nd Number of equation : ");
   scanf("\n%d",b);
   printf("Enter 3rd Number of equation : ");
   scanf("\n%d",c);

/*   getch(); */
   return 0;
}