C - Recursion

#include "stdafx.h"
#include <iostream>
using namespace std;

/*
int fact(int n)
{
  if (n <= 1)
      return 1;
  else
      return n*fact(n-1);
}

int _tmain(int argc, _TCHAR* argv[])
{

    int n;
    printf("n=");
    scanf("%d", &n);
    printf("n! = %d", fact(n));

}
*/

//задача 24

/*
int find(int decimalNum)
{
    if (decimalNum == 0)
        return 0;
    else
        return (decimalNum % 2 + 10 * find(decimalNum / 2));
}

int main()
{
    int decimalNum = 10;
    printf("%d\n", find(decimalNum));
    return 0;
}
*/

//varıant 2

void toBin(int decimal){
    if(decimal <= 0){
        return;
    }
    if(decimal > 0){
        toBin(decimal/2);
        printf("%d\n", decimal % 2);
    }
}

int _tmain(int argc, _TCHAR* argv[]){
    toBin(10);
    return 0;
}