#include 
#include 
#include 
void dtoh(int d);
main()
{
 int d;
 clrscr();
 printf("Enter a no. in decimal system:- ");
 scanf("%d",&d);
 dtoh(d);
 printf("
			HAVE A NICE DAY! BYE.");
 getch();
}
 void dtoh(int d)
 {
 int b,c=0,a[5],i=0;
 b=d;
 while (b>15)
 {
 a[i]=b%16;
 b=b/16;
 i++;
 c++;
 }
 a[i]=b;
 printf("
Its hexadecimal equivalent is ");
 for (i=c;i>=0;--i)
 {
 if (a[i]==10)
	printf("A");
 else if (a[i]==11)
	printf("B");
 else if (a[i]==12)
	printf("C");
 else if (a[i]==13)
	printf("D");
 else if (a[i]==14)
	printf("E");
 else if (a[i]==15)
	printf("F");
 else
	printf("%d",a[i]);
 }
 return;
 }