Sorted_List_Search

//  Thread http://forum.unity3d.com/threads/119735-Finding-a-similar-key-in-a-Dictionary]
//  Copyright NPSF3000 2012.  ALL RIGHTS RESERVED.  NO WARRANTY GIVEN.
//  ATTRIBUTION REQUIRED FOR ALL NON-PERSONAL APPLICATIONS

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;

namespace Sorted_List_Search
{
    class Program
    {
        static void Main(string[] args)
        {
            var dates = new SortedList<int, string>
            {
                {1,"r"},
                {5,"g"},
                {9,"b"},
                {10,"x"},
                {15,"y"},
            };

            Console.WriteLine("Enter a positive integer and press enter.");
            Console.WriteLine();

            while (true)
            {
                var input = Console.ReadLine();
                int key;
                if (int.TryParse(input, out key))
                    Console.WriteLine(dates.Select(x => x).Where(x => x.Key <= key).OrderByDescending(x => x.Key).First());
            }
        }
    }
}