Given a decimal Number. Make it to a binary number using Recursion.

#include <iostream>
#include <cstdio>
using namespace std;

void decimal_to_binary(int n){
    if(n == 0) return;
    decimal_to_binary(n/2);
    cout<<n%2;
}

int main()
{
    int n;
    while(cin>>n){
        decimal_to_binary(n);
        puts("");
    }
    return 0;
}