C语言，进制转换之十进制转二进制，完整代码

#include "iostream"
using namespace std;
#define MAX 50
int main()//十转二
{
    cout << "请输入一个整型十进制数："<<endl;
    int number;
    cin >> number;
    int elem2[MAX];
    int i = 0;
    int length=0;
    do
    {
        elem2[i] = number % 2;
        number = number / 2;
        i++;
        length++;
    } while (number!= 1);
    elem2[length] = number;
    length++;
    for (i = length-1; i>=0;i--)
    cout << elem2[i] << " ";
    cout << endl;
    return 0;
}