List.cs

// As we all know, the generic List<T> class in .NET doesn't 
// have a RemoveMultiple method. Could you implement it for me?
// Say the elements are kept in the _items field, which is an
// array of type T. Also, use _count to keep the current number
// of elements.
// PS: You can compare two items with "==" operator.

namespace System.Collections.Generic
{
    public class List<T>
    {
        private T[] _items;
        private int _count;
        
        public void RemoveMultiple(IEnumerable<T> itemsToRemove)
        {
            // Please implement the method here.
        }
    }
}