Program binary numbers

Binary numbers :

0 1 2 4 8 16 32 64 128 256.......n

/*c program to print binary numbers series*/

#include<stdio.h>

#include<conio.h>

int main()

{

 int x,y,z,num;

 printf("Enter last number where goes to end binary numbers : ");

 scanf("%d",&num);

 x=0;

 y=1;

 while(num>=x)

 {

   z=x+y;

   printf("%d\t",x);

   y=z;

   x=y;

 }
 getch();

 return 0;

}

/***************Output*****************

Enter last number where goes to end binary numbers : 50

0 1 2 4 8 16 32


*************************************/