write a c program to create a linked list with a given number in which the data part contain individual digit of a numer

/*write a c program to create a linked list with a given number
in which the data part contain individual digit of a numer*/
#include<stdio.h>
#include<conio.h>
#include<alloc.h>
struct node
{
int data;
struct node *next;
};
struct node *start=NULL,*temp=NULL;
void main()
{
int num,a[10],i,j;
clrscr();
printf("enter the number:-");
scanf("%d",&num);
i=0;
while(num>0)
{
a[i]=num%10;
i++;
num=num/10;
}
i--;
printf("\nthe display of linked list is:-\n");
for(j=i;j>=0;j--)
{
if(start==NULL)
{
start=malloc(sizeof(struct node));
start->data=a[j];
printf("%d",start->data);
start->next=NULL;
temp=start;
}
else
{
temp->next=malloc(sizeof(struct node));
temp->next->data=a[j];
printf(",%d",temp->next->data);
temp->next->next=NULL;
temp=temp->next;
}
}
getch();
}
/*----------------OUTPUT--------------
enter the number:-1254

the display of linked list is:-                                                
1,2,5,4,                                                                      
    */