//RIOLA, JOANA MARIE B.

//CCP 1103 - ITCC

//FIBONACCI FREEZE

​

using System;

​

namespace FibonacciFreeze

{

    public class Program

    {

        public static void Main(string[] args)

        {

            String inputNumber;

            int frozenNumber;

            int fibNum = 0;

            int prevNum = 1;

​

            Console.WriteLine("Fibonacci Freeze");

            Console.WriteLine();

​

            Console.Write("Input a number: ");

            inputNumber = Console.ReadLine();

            if (Int32.TryParse(inputNumber, out frozenNumber) == true)

            {

                if(frozenNumber > 0)

                {

                    for (int i = 0; i < frozenNumber; i++)

                    {

                        int temp = fibNum;

                        fibNum = prevNum;

                        prevNum = temp + prevNum;

                    }

                    Console.WriteLine();

                    Console.Write("The Frozen Number is {0}.", fibNum);

                }

                else

                {

                    Console.WriteLine();

                    Console.Write("Numbers less than zero is not allowed. ");

                }

            }

            else

            {

                Console.WriteLine();

                Console.Write("Invalid input. Please enter a numeric value. ");

            }

        }

    }

}

​