Deleting A Specified Element In An Array Using Random Class

Question

class Check
{
     public static void Main()
     {         
              int[] arr1 = new int[] { 1, 2, 3 };
              Console.WriteLine(\"The Number That Left Us          


        

Answer 1

Arrays cannot be resized, if you want to remove items use a List.

However, you can create a new one. If you want to keep all items but one at the random index:

arr1 = arr1.Where((i, index) => index != r).ToArray();

With a list you can use RemoveAt which is more efficient than creating arrays:

var list = new List { 1, 2, 3 };
list.RemoveAt(r);