WAP to find hexadecimal conversion of a given deimal number

/*WAP to find hexadecimal conversion
of a given deimal number*/

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

void main()

{
 long int n,i=0,k,j,s[16];
 clrscr();

 printf("Enter any Decimal Number:");
 scanf("%ld",&n);

 printf("\nHexadecimal\n");

        printf("\n\n%x\n\n",n);
  while(n!=0)
  {
   s[i]=n%16;
   printf("%d:::",s[i]);
   n=n/16;
   printf("%d...",n);
   i++;
  }
  printf("\nHexadecimal Conversion:");

  for(j=i-1;j>=0;j--)
  {
  if(s[j]<=9)
  printf("%ld",s[j]);

   else if(s[j]==10)
   printf("A");

  else if(s[j]==11)
  printf("B");

   else if(s[j]==12)
   printf("C");

  else if(s[j]==13)
  printf("D");

   else if(s[j]==14)
   printf("E");

  else if(s[j]==15)
  printf("F");
  }

 getch();
}