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Fibonacci/Program.cs

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+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace Fibonacci {
+    internal class Program {
+        public static ulong fibonacci(int darab) {
+            if ((darab == 0) || (darab == 1)) {
+                return Convert.ToUInt64(darab);
+            } else {
+                return fibonacci(darab - 1) + fibonacci(darab - 2);
+            }
+        }
+
+        static void Main(string[] args) {
+            Console.WriteLine("Adja meg hány számot akar látni");
+            ulong darab = Convert.ToUInt64(Console.ReadLine());
+          
+            ulong a = 0, b = 1, szamlalo = 0;
+            while (szamlalo++ < darab) {
+                b += a;
+                a = b - a;
+
+                Console.WriteLine(b);
+            }
+          
+            Console.ReadKey();
+        }
+    }
+}