using System;

public class Program

{

    public static void Main()

    {

        int []  array =new  int[5];

        Console.WriteLine("Digite um numero ; ");

            array[0] = Convert.ToInt32(Console.ReadLine());

             array[1] = Convert.ToInt32(Console.ReadLine());

              array[2] = Convert.ToInt32(Console.ReadLine());

               array[3] = Convert.ToInt32(Console.ReadLine());

                array[4] = Convert.ToInt32(Console.ReadLine());

        //sintaxe for contador + array

        for (int i=0;i<5;i++){

            if(array[i]<0){

                array[i]=0;

            }else{

               array[i]=1;

            }

        }

        Console.WriteLine("------------------- ");

        Console.WriteLine(array[0]);

        Console.WriteLine(array[1]);

        Console.WriteLine(array[2]);

        Console.WriteLine(array[3]);

        Console.WriteLine(array[4]);

    }    

}

​