Write a C function to calculate the roots of the quadratic equation. The function must use two pointer parameters, one to receive the coefficients a, b, and c, and the other to send the roots to the calling function

Write a C function to calculate the roots of the quadratic equation. The function must use two pointer parameters, one to receive the coefficients a, b, and c, and the other to send the roots to the calling function Write a C function to calculate the roots of the quadratic equation. The function must use two pointer parameters, one to receive the coefficients a, b, and c, and the other to send the roots to the calling function

1:  #include<stdio.h>  
2:  #include<conio.h>  
3:  void solve(int*,float*);  
4:  int main()  
5:  {  
6:        int a[3];  
7:        float *root;  
8:        clrscr();  
9:        printf("Enter the value of A : ");  
10:        scanf("%d",&a[0]);  
11:        printf("Enter the value of B : ");  
12:        scanf("%d",&a[1]);  
13:        printf("Enter the value of C : ");  
14:        scanf("%d",&a[2]);  
15:        solve(a,root);  
16:        if(root==NULL)  
17:              printf("The root is not possible\n");  
18:        else if(root[0]==root[1])  
19:              printf("The root is %.2f\n",root[0]);  
20:        else  
21:              printf("The roots are %.2f & %.2f\n",root[0],root[1]);  
22:        getch();  
23:        return 0;  
24:  }  
25:  void solve(int *a,float *r)  
26:  {  
27:        float d;  
28:        d=a[1]*a[1]-4*a[0]*a[2];  
29:        if(d<0)  
30:        {  
31:              r=NULL;  
32:        }  
33:        else if(d==0)  
34:        {  
35:              r[0]=r[1]=-a[1]/(2*a[0]);  
36:        }  
37:        else  
38:        {  
39:              r[0]=-a[1]/(2*a[0]);  
40:              r[1]=-a[1]/(2*a[0]);  
41:        }  
42:  }