Convert decimal to binary

#include

void dec_bin(int number);

int main(void)
{
int input = 0;

printf("Digit (0-255): ");
scanf("%d", &input);

(input >= 0) && (input < 256) ? dec_bin(input) : exit(1);

return 0;
}

void dec_bin(int number)
{
int x, y;
x = y = 0;

for(y = 7; y >= 0; y--)
{
x = number / (1 << y);
number = number - x * (1 << y);
printf("%d", x);
}

printf("\n");
}