public interface INode { string Name { get; set; } INode Parent { get; set; } ListChildren { get; set; } } public class File : INode { public string Name { get; set; } public INode Parent { get; set; } public List Children { get; set; } public File(string name, INode parent) { Name = name; Parent = parent; Children = new List (); } } public class Folder : INode { public string Name { get; set; } public INode Parent { get; set; } public List Children { get; set; } public Folder(string name, INode parent) { Name = name; Parent = parent; Children = new List (); } }
public interface INodeIn this example, we are using INode to implement a binary tree. We have a generic interface INode with type parameter T, which has three properties - Value to store the node value, LeftChild and RightChild to store the left and right children respectively. We also have a BinaryTreeNode class that implements the INode interface and initializes the properties with a constructor. Package/library: There are many C# libraries that have the INode interface, including System.IO, System.Linq.Expressions, and Microsoft.CodeAnalysis.CSharp.Syntax. However, the examples provided do not have any specific package or library import statements, so we cannot determine the exact library used in these examples.{ T Value { get; set; } INode LeftChild { get; set; } INode RightChild { get; set; } } public class BinaryTreeNode : INode { public T Value { get; set; } public INode LeftChild { get; set; } public INode RightChild { get; set; } public BinaryTreeNode(T value) { Value = value; LeftChild = null; RightChild = null; } }