A programme to convert decimal number to binary number

#include <stdio.h>
#include <conio.h>
void main()
{int num,bnrydigit;
printf("Enter the decimal number:= ");
scanf("%d",&num);
for( ;num!=0;  )
{bnrydigit=num%2;
printf("%d",bnrydigit);
num=num/2;
}
getch();
}