using System;

using Quickenshtein;

using System.Text.RegularExpressions;

​

public class Program

{

    readonly static string[] invalidNames = new string[] {

           "A DESIGNAR",

           "DIVERSOS",

        };

    readonly static Regex whitespaceFoldRegex = new Regex(@"\s{2,}");

    private static int checkName(string name) {

        int minDistance = int.MaxValue;

        string n = name.Trim().ToUpper();

        n = whitespaceFoldRegex.Replace(n, " ");

        foreach(var i in invalidNames)

        {

            var distance =  Levenshtein.GetDistance(n, i);

            minDistance = minDistance < distance ? minDistance : distance;

        }

        return minDistance;

    }

    public static void Main()

    {

        string[] test = new string[] {

            "a desgnar",

            "a designar",

            "adesignar",

            "diversos",

            "dversos",

            "deversos",

            "dversos",

            "a       designar                       ",

            "barriga de aluguel"

        };

        foreach(var n in test){

            Console.WriteLine($"{checkName(n)}: {n} - {checkName(n) < 2}");

        }

    }

}