Decimal to Binary

#include<iostream.h>
#include<conio.h>
void main()
{clrscr();
int d,n,b[10],i=0,r,j;
cout<<"Enter a decimal number";
cin>>d;
n=d;
while (n)
{r=n%2;
b[i]=r;
i++;
n=n/2;
}
cout<<"The binary equivalent of the number is:";
for(j=i-1;j>=0;j--)
cout<<b[j];
getch();
}