using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
namespace ConsoleApplication1
{
class Program
{
public static int getOneCount(int num)
{
if (num < 0)
{
return -1;
}
else if (num == 0)
{
return 0;
}
else
{
int tmp = 0;
while (num != 0)
{
if (num % 2 == 1)
{
num /= 2;
tmp++;
}
else
num /= 2;
}
return tmp;
}
}
public static string getBinary(int num)
{
if (num < 0)
{
return "-1";
}
else if (num == 0)
{
return "0";
}
else
{
string a = "";
while (num != 0)
{
a = num % 2 + a;
num /= 2;
}
return a;
}
}
static void Main(string[] args)
{
Console.WriteLine("{0, 8}", Program.getOneCount(-2));
Console.WriteLine("{0, 8}", Program.getOneCount(0));
Console.WriteLine("{0, 8}", Program.getOneCount(1));
Console.WriteLine("{0, 8}", Program.getOneCount(2));
Console.WriteLine("{0, 8}", Program.getOneCount(10));
Console.WriteLine("{0, 8}", Program.getOneCount(12));
Console.WriteLine("{0, 8}", Program.getOneCount(127));
Console.WriteLine();
Console.WriteLine("{0, 8}", Program.getBinary(-2));
Console.WriteLine("{0, 8}", Program.getBinary(0));
Console.WriteLine("{0, 8}", Program.getBinary(1));
Console.WriteLine("{0, 8}", Program.getBinary(2));
Console.WriteLine("{0, 8}", Program.getBinary(10));
Console.WriteLine("{0, 8}", Program.getBinary(12));
Console.WriteLine("{0, 8}", Program.getBinary(127));
}
}
}