Write a program that reads a decimal value and converts it to binary using binary operators.

#include <stdio.h>
#include <conio.h>
void main ()	
{

	int M, u;
	int counter=0;

	printf("Enter an decimal integer: ");
	scanf("%d", &M);


	printf("In binary : ");

	/* we counts least significant bit */ 
	 u=M; 
	while ((u&1)!=1)
	{
		u=u>>1;
		counter++;
	}

	/* Necessary to keep M value for the M%2 test */
	u=M;

	/* Reading from left to right : we place ourselves on the 1st 
	* non zero most significant bit */
	while (u>0) u=u<<1;

	/*Now we show the bits from left to right */
	while (u!=0)
	{
		if (u<0) 
			printf("%c",'1');
		else 
			printf("%c",'0');
		u=u<<1;
	}
	
	/* In the case where M is even, you have to take into account its   
	*  least significant bits of zeros */
	if (M%2==0) 
		while (counter !=0)
		{
			printf("%c",'0');
			counter--;
		}
	
	putchar('\n');
	getch();
}