Reto mouredev#14 - C#

Retos/Reto #14 - OCTAL Y HEXADECIMAL [Fácil]/c#/Guillermoqnk.cs

@@ -0,0 +1,98 @@
+using System.Text;
+
+namespace Reto14
+{
+    internal class Guillermoqnk
+    {
+        static void Main(string[] args)
+        {
+            string input;
+
+            Console.WriteLine("Introduce the number to transform: ");
+
+            input = Console.ReadLine();
+
+            try
+            {
+                Console.WriteLine("\nThe number in octal: ");
+                Console.WriteLine(ConvertToOctal(Convert.ToDecimal(input)));
+                Console.WriteLine("\nThe number in hexadecimal: ");
+                Console.WriteLine(ConvertToHexadecimal(Convert.ToDecimal(input)));
+            }
+            catch { }
+        }
+
+        public static int ConvertToOctal(decimal input)
+        {
+            int numberToTry = (int)input;
+
+            List<int> results = new List<int>();
+
+            while(numberToTry >= 8)
+            {
+                int rest = numberToTry % 8;
+
+                results.Add(rest);
+
+                numberToTry = numberToTry / 8;
+            }
+
+            results.Add(numberToTry);
+
+            StringBuilder output = new StringBuilder();
+
+            results.Reverse();
+
+            foreach(int result in results)
+            {
+                output.Append(result);
+            }
+
+            return Convert.ToInt32(output.ToString());
+        }
+
+        public static string ConvertToHexadecimal(decimal input)
+        {
+            Dictionary <int, string> hexaValues= new Dictionary<int, string>()
+            {
+                {0, "0"}, {1,"1"}, {2,"2"}, {3,"3"},  {4,"4"}, {5,"5"}, {6,"6"}, {7, "7"}, {8, "8"}, {9,"9"}, {10, "A"}, {11, "B"}, {12, "C"},{13, "D"},{14, "E"}, {15, "F"}
+            };
+
+            int numberToTry = (int)input;
+
+            List<string> results = new List<string>();
+
+            while (numberToTry >= 16)
+            {
+                int rest = numberToTry % 16;
+
+                string hexa = String.Empty;
+
+                if(hexaValues.TryGetValue(rest, out hexa))
+                {
+                    results.Add(hexa);
+                }
+
+                numberToTry = numberToTry / 16;
+            }
+
+            string hexal;
+
+            if (hexaValues.TryGetValue((int)numberToTry, out hexal))
+            {
+                results.Add(hexal);
+            }
+
+            StringBuilder output = new StringBuilder();
+
+            results.Reverse();
+
+            foreach (string result in results)
+            {
+                output.Append(result);
+            }
+
+            return output.ToString();
+        }
+    }
+}