Dev - C++ - convertir un número decimal N a binario

#include <iostream>

using namespace std;

int main() {

	int v[50], x, i = 0;

	cout << "Dame un numero: ";

	cin >> x;

	do{

		v[i] = x % 2;

		x = x / 2;

		i++;

	} while( x != 0 );

	for( int t = i; t < 50; t++ )

		v[t]=9;

	for( i = 49; i >= 0; i-- ){

		if( v[i] == 0 ) cout << v[i];

		if( v[i] == 1 ) cout << v[i];

	}

}

#include <iostream>

using namespace std;

void binario(int x) {

    if(x > 1) binario(x / 2);

    cout << (x % 2);

}

int main() {

    for(int i = 0; i < 100; i++) {

        cout << i << " ";

        binario(i);

        cout << endl;

    }

}