convert seconds into hours,minutes & remaning seconds

/*convert seconds into hours,minutes & remaning seconds */

#include<stdio.h>
#include<conio.h>
void main()
{
int a,hours,minutes,rh,rm,sec;
clrscr();
printf("enter seconds\n");
scanf("%d",&a);
hours=a/3600;
rh=a%3600;
minutes=rh/60;
rm=rh%60;
sec=rm;
printf("hours=%d",hours);
printf("\nminutes=%d",minutes);
printf("\nsec=%d",sec);

getch();
}