arr1 is filled with elements but it only outputs 0 on both arr2 and arr3. Any solutions without extensions such as LINQ

int[] arr1 = new int[100];
int[] arr3 = new int[100];
int[] arr2 = new int[100];
int n, i;
int e = 0;
int o = 0;

Console.Write("\n\n");
Console.Write("Separate odd and even integers in separate arrays\n");
Console.Write("-------------------------------------------------");
Console.Write("\n\n");

Console.Write("Input number of elements in array: ");
n = Convert.ToInt32(Console.ReadLine());

Console.Write("Input {0} elements\n", n);
for(i = 0; i < n; i  )
{
    Console.Write("Element-{0}: ", i);
    arr1[i] = Convert.ToInt32(Console.ReadLine());
}

for(i = 0; i < n; i  )
{
    if ((arr1[i] % 2) == 0)
    {       
        Array.Copy(arr1, i, arr2, e, 1);
        e  ;
    }
}

for (i = 0; i < n; i  )
{
    if ((arr1[i] % 2) != 0)
    {       
        Array.Copy(arr1, i, arr3, o, 1);
        o  ;
    }
}

Console.Write("Even numbers in array: {0}\n", arr2[i]);
Console.Write("Odd numbers in array: {0}", arr3[i]);

the code outputs 0 for both odd and even arrays if someone could point out why that would be great

CodePudding user response：

How is this:

            int n, i;
            int e = 0;
            int o = 0;

            Console.Write("\n\n");
            Console.Write("Separate odd and even integers in separate arrays\n");
            Console.Write("-------------------------------------------------");
            Console.Write("\n\n");

            Console.Write("Input number of elements in array: ");
            n = Convert.ToInt32(Console.ReadLine());
            int[] arr1 = new int[n];
            Console.Write("Input {0} elements\n", n);
            for (i = 0; i < n; i  )
            {
                Console.Write("Element-{0}: ", i);
                arr1[i] = Convert.ToInt32(Console.ReadLine());
            }

            for (i = 0; i < n; i  )
            {
                if ((arr1[i] % 2) == 0)
                {
                    
                    e  ;
                }
            }

            for (i = 0; i < n; i  )
            {
                if ((arr1[i] % 2) != 0)
                {
                   
                    o  ;
                }
            }
            
            Console.Write("Even numbers in array: {0}\n", e.ToString());
            Console.Write("Odd numbers in array: {0}", o.ToString());
            Console.ReadLine();

Or if you need to display numbers:

        int n, i;
        int e = 0;
        int o = 0;
        List<int> one = new List<int>();
        List<int> two = new List<int>();

        Console.Write("\n\n");
        Console.Write("Separate odd and even integers in separate arrays\n");
        Console.Write("-------------------------------------------------");
        Console.Write("\n\n");

        Console.Write("Input number of elements in array: ");
        n = Convert.ToInt32(Console.ReadLine());
        int[] arr1 = new int[n];
        Console.Write("Input {0} elements\n", n);
        for (i = 0; i < n; i  )
        {
            Console.Write("Element-{0}: ", i);
            arr1[i] = Convert.ToInt32(Console.ReadLine());
        }

        for (i = 0; i < n; i  )
        {
            if ((arr1[i] % 2) == 0)
            {
                one.Add(arr1[i]);
                e  ;
            }
        }

        for (i = 0; i < n; i  )
        {
            if ((arr1[i] % 2) != 0)
            {
                two.Add(arr1[i]);
                o  ;
            }
        }
        
        Console.Write("Even numbers in array: {0}\n", string.Join<int>(",", one));
        Console.Write("Odd numbers in array: {0}", string.Join<int>(",", two));
        Console.ReadLine();
enter code here

Also you should replace your \n with Environment.NewLine. And really it is built in with the Console.WriteLine anyways.

CodePudding user response：

When you check the value of i, it is greeater that length of arr2 and arr3 But to display values of arr2 and arr3:

for (i = 0; i < arr2.lenth; i  )
{
    Console.Write("Even numbers in array: {0}\n", arr2[i]);
}

for (i = 0; i < arr3.lenth; i  )
{
    Console.Write("Even numbers in array: {0}\n", arr2[i]);
}