Decimal to Binary conversion

#include<stdio.h>
#include<conio.h>
int main()
{
int n, c, k;
clrscr();
printf("Enter an integer in decimal number system\n");
scanf("%d", &n);
printf("binary: \n", k);
for (c= 31; c >= 0; c--)
{
k = n >> c;
if (k & 1)
printf("1");
else
printf("0");
}
printf("\n");
getch();
return 0;
}