https://stackoverflow.com/questions/50828148/equivalent-number-to-find-exact-match-between-two-sets, C#

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//Rextester.Program.Main is the entry point for your code. Don't change it.
//Compiler version 4.0.30319.17929 for Microsoft (R) .NET Framework 4.5

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

namespace Rextester
{
    public class Program
    {
        public static void Main(string[] args)
        {
            //Your code goes here
            Console.WriteLine("Hello, world!");
            //predifine your sets
            var inputSet = new List<char> {'1','2','3','4','5','6','7','8','9','0'};
            var outputSet = new List<char>{'A','B','C','D','E','F','G','H','I','J'};
            //lets parse
            Console.WriteLine(new string("1352".Select(x=>outputSet[inputSet.IndexOf(x)]).ToArray()));
            Console.WriteLine(new string("199466856".Select(x=>outputSet[inputSet.IndexOf(x)]).ToArray()));
            Console.WriteLine(new string("111222333444".Select(x=>outputSet[inputSet.IndexOf(x)]).ToArray()));
        }
    }
}

Show compiler warnings [ + ] Show input
Compilation time: 0,16 sec, absolute running time: 0,09 sec, cpu time: 0,09 sec, average memory usage: 13 Mb, average nr of threads: 3

https://stackoverflow.com/questions/50828148/equivalent-number-to-find...