using System;

using System.Collections.Generic;       

​

public class Program

{

    public class TodoList {

        Dictionary<string,bool> Tasks = new Dictionary<string,bool>();

        // TODO create private variables to solve!

        // HINT:

        // maybe a list for each category, or else a list of a struct that has a string name and a boolean for completion?

        public class TodoEntry {

            public string name;

            public bool state;

            public TodoEntry(string task) {

                name = task;

                state=false;

            }

        }

        List<TodoEntry> Entries = new List<TodoEntry>();

        public void AddEntry(string task) {

            if(Tasks.ContainsKey(task)){

            Tasks[task] = false;

            }else{

                Tasks.Add(task,false);}

        }

        public void CompleteEntry(string task) {

            if(Tasks.ContainsKey(task)){

                Tasks[task] = true;

            }

        }

        public void PrintIncompleteEntries() {

            // TODO Implement

            Console.WriteLine("INCOMPLETE:");

            foreach(var pear in Tasks){

                if(pear.Value ==false){

                Console.WriteLine(pear.Key);

                }   

            }

        }

        public void PrintCompleteEntries() {

            // TODO Implement

            // TODO Implement

            Console.WriteLine("COMPLETE:");

            foreach(var pear in Tasks){

                if(pear.Value ==true){

                Console.WriteLine(pear.Key);

                }   

            }

        }

    }

    public static void Main()

    {

        TodoList todo = new TodoList();

​

​

        todo.PrintIncompleteEntries();

        todo.PrintCompleteEntries();

​

        todo.AddEntry("Write Code");

        todo.AddEntry("Write Code");

        todo.PrintIncompleteEntries();

        todo.PrintCompleteEntries();

        todo.AddEntry("Walk Dog");

        todo.AddEntry("Pet Cat");       

        todo.AddEntry("Go To Bank");

        todo.CompleteEntry("Walk Dog");

        todo.PrintIncompleteEntries();

        todo.PrintCompleteEntries();

        todo.CompleteEntry("Pet Cat");

        todo.CompleteEntry("Write Code");

        todo.AddEntry("Walk Dog");

        todo.CompleteEntry("Bad Task");     

        todo.PrintIncompleteEntries();

        todo.PrintCompleteEntries();

    }

}