Added class and test method for Fibonacci Checker code challenge.

quickm · quickm · commit 9909d64c549c · 2021-02-24T17:07:21.000-08:00
Updated challenge list text files
diff --git a/Coderbyte_CSharp/1 Easy Challenges/EasyChallenges.txt b/Coderbyte_CSharp/1 Easy Challenges/EasyChallenges.txt
@@ -5,6 +5,7 @@ Challenge:          C# Date:        Class
 Alphabet Soup       02/10/2021      AlphabetSorter
 ArithGeo            02/10/2021      MathSequence
 Check Numbers       02/10/2021      NumberCheck
+Fibonacci Checker   02/24/2021      MathFibonacci
 Find Intersection   02/11/2021      StringIntersection
 First Factorial		02/22/2021		Factorial
 First Reverse		02/22/2021		StringReverse
diff --git a/Coderbyte_CSharp/1 Easy Challenges/MathFibonacci.cs b/Coderbyte_CSharp/1 Easy Challenges/MathFibonacci.cs
@@ -0,0 +1,50 @@
+﻿using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace Coderbyte_CSharp._Easy_Challenges
+{
+    class MathFibonacci
+    {
+        public string FibonacciChecker(int num)
+        {
+            string result      = String.Empty;
+            bool   isFibonacci = false;
+
+            isFibonacci = IsValidFibonacci(1, 1, num);
+
+            result = (isFibonacci) ? "yes" : "no";
+
+            return result;
+        }
+
+        protected bool IsValidFibonacci(int x, int y, int num)
+        {
+            bool isFibonacci = false;
+
+            if (num == 0 || num == 1)
+            {
+                isFibonacci = true;
+            }
+
+            else if (x + y == num)
+            {
+                isFibonacci = true;
+            }
+
+            else if (x + y < num)
+            {
+                isFibonacci = IsValidFibonacci(x + y, x, num);
+            }
+
+            else
+            {
+                isFibonacci = false;
+            }
+
+            return isFibonacci;
+        }
+    }
+}
diff --git a/Coderbyte_CSharp/2 Medium Challenges/MediumChallenges.txt b/Coderbyte_CSharp/2 Medium Challenges/MediumChallenges.txt
@@ -5,6 +5,7 @@ Challenge:                  C# Date:        Class:
 Consecutive                 02/12/2021      ConsecutiveNumbers
 K Unique Chars              02/12/2021      StringUniqueSubstring
 Number Encoding             02/12/2021      NumberEncoder
+Preorder Traversal
 Prime Mover                 02/12/2021      PrimeNumber
 Run Length                  02/15/2021      StringCompression
 String Reduction            02/15/2021      StringReducer
diff --git a/Coderbyte_CSharp/Coderbyte_CSharp.csproj b/Coderbyte_CSharp/Coderbyte_CSharp.csproj
@@ -47,6 +47,7 @@
     <Compile Include="1 Easy Challenges\ChangeLetter.cs" />
     <Compile Include="1 Easy Challenges\ExponentTwo.cs" />
     <Compile Include="1 Easy Challenges\Factorial.cs" />
+    <Compile Include="1 Easy Challenges\MathFibonacci.cs" />
     <Compile Include="1 Easy Challenges\MathProduct.cs" />
     <Compile Include="1 Easy Challenges\MathSequence.cs" />
     <Compile Include="1 Easy Challenges\MedianMovement.cs" />
diff --git a/Coderbyte_CSharp/Program.cs b/Coderbyte_CSharp/Program.cs
@@ -32,6 +32,7 @@ static void Main(string[] args)
             tc.Test_MovingMedian();
             tc.Test_QuestionsMarks();
             tc.Test_RemoveBrackets();
+            tc.Test_FibonacciChecker();
 
             // Medium
             Console.WriteLine("Medium Code Challenges:");
diff --git a/Coderbyte_CSharp/TestChallenge.cs b/Coderbyte_CSharp/TestChallenge.cs
@@ -2,7 +2,7 @@
 using System.Collections.Generic;
 using System.Linq;
 using System.Text;
-
+using Coderbyte_CSharp._Easy_Challenges;
 using Coderbyte_CSharp.Easy_Challenges;
 using Coderbyte_CSharp.Medium_Challenges;
 using Coderbyte_CSharp.Hard_Challenges;
@@ -345,6 +345,27 @@ public void Test_RemoveBrackets()
             Console.WriteLine();
         }
 
+        public void Test_FibonacciChecker()
+        {
+            MathFibonacci  fibonacci = new MathFibonacci();
+            Console.WriteLine("Fibonacci Checker:");
+
+            int num = 5;
+            Console.WriteLine("Input: {0}", num);
+            Console.WriteLine("Output:  {0}", fibonacci.FibonacciChecker(num));
+            Console.WriteLine();
+
+            num = 34;
+            Console.WriteLine("Input: {0}", num);
+            Console.WriteLine("Output:  {0}", fibonacci.FibonacciChecker(num));
+            Console.WriteLine();
+
+            num = 54;
+            Console.WriteLine("Input: {0}", num);
+            Console.WriteLine("Output:  {0}", fibonacci.FibonacciChecker(num));
+            Console.WriteLine();
+        }
+
 
         #endregion
 
