Xwork's Blog

using System;
using System.Windows.Forms;
using System.Numerics;
using System.Threading;

namespace ConjeturaDeCollatz
{
	public partial class FrmMain : Form
	{
		private delegate void UpdateListDelegate(string Value);

		private void UpdateList(string Value)
		{
			if (LBResults.InvokeRequired)
			{
				LBResults.Invoke(new UpdateListDelegate(UpdateList), Value);
			}
			else
			{
				LBResults.Items.Add(Value);
			}
		}
		private void CalculateCollatz(string Number)
		{
			BigInteger MyNumber;
			BigInteger.TryParse(Number, out MyNumber);
			while (MyNumber > 1)
			{
				if (MyNumber.IsEven == false)
				{
					MyNumber = MyNumber * 3 + 1;
					UpdateList(MyNumber.ToString());
				}
				else
				{
					MyNumber = MyNumber / 2;
					UpdateList(MyNumber.ToString());
				}
			}
		}
		private void RunWork(string Number)
		{
			Thread DoWork = new Thread(new ThreadStart(() => CalculateCollatz(Number)));
			DoWork.Start();
		}
		public FrmMain()
		{
			InitializeComponent();
		}

		private void BtnStart_Click(object sender, EventArgs e)
		{
			LBResults.Items.Clear();
			RunWork(TxtNumberIn.Text);

		}
	}
}

using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Linq;
using System.Text;
using System.Windows.Forms;

namespace DecToAny
{
 public partial class FrmMain : Form
 {
  private List<TextBox> TextBoxes = new List<TextBox>();
  private List<int> DecToAny(int Number, int Base)
  {
   int LastNumber = Number;
   int Garbage;
   List<int> result = new List<int>();
   if (LastNumber < Base)
   {
    result.Add(LastNumber);
   }
   else
   {
   while (LastNumber >= Base) {
    Garbage = LastNumber % Base;
    LastNumber = LastNumber / Base;
    if (LastNumber < Base)
    {
     result.Add(Garbage);
     result.Add(LastNumber);
    }
    else
    {
     result.Add(Garbage);
    }
   }
   }

   return result;
  }
  private string ListToString(List<int> Lista)
  {
   string Out = "";
   Lista.Reverse();
   foreach (int Numero in Lista) {
    if (Numero < 10)
    {
     Out += Numero.ToString();
    }
    else
    {
     Out += NumberToLetra(Numero);
    }
   }
   return Out;
  }
  public FrmMain()
  {
   InitializeComponent();
  }
  private char NumberToLetra(int Number)
  {
   return (char)(Number + 55);
  }
  private void FrmMain_Load(object sender, EventArgs e)
  {
   TextBoxes.Add(txtBase2);
   TextBoxes.Add(txtBase3);
   TextBoxes.Add(txtBase4);
   TextBoxes.Add(txtBase5);
   TextBoxes.Add(txtBase6);
   TextBoxes.Add(txtBase7);
   TextBoxes.Add(txtBase8);
   TextBoxes.Add(txtBase9);
   TextBoxes.Add(txtBase10);
   TextBoxes.Add(txtBase11);
   TextBoxes.Add(txtBase12);
   TextBoxes.Add(txtBase13);
   TextBoxes.Add(txtBase14);
   TextBoxes.Add(txtBase15);
   TextBoxes.Add(txtBase16);
   TextBoxes.Add(txtBase17);
   TextBoxes.Add(txtBase18);
   TextBoxes.Add(txtBase19);
   TextBoxes.Add(txtBase20);

  }

  private void BtnConvert_Click(object sender, EventArgs e)
  {
   for (int T = 0; T < TextBoxes.Count; T++)
   {
    TextBoxes[T].Text = ListToString(DecToAny(int.Parse(TxtNIn.Text), (T + 2)));
   }
  }
 }
}

A tomar en cuenta.