Question

C# - Using Visual Studio 2017/2019

The Fibonacci sequence is a numerical sequence that follows a simple pattern: 1,1, 2, 3, 5, 8, 13, 21, 34, 55, By definition, the first two numbers are 1 and 1, and each subsequent number is the sum of the previous two.

For your program, you will ask the user to enter a number, n, and then calculate and display the values of the Fibonacci sequence to the nth position.

==sample output==

Enter an integer value to see the Fibonacci sequence to that position: 15

The values of the Fibonacci sequence to the 15th position are:

1

1

2

3

5

8

13

21

34

55

89

144

233

377

610

Press any key to continue...

==What i have so far==

class Sequences_For
{
static int Fib(int n)
{
int a = 0;
int b = 1;
for (int i = 1; i < n; i++)
{
int c = a;
a = b;
b = c + b;
}

}

your help is greatly appreciated !

Answer 1

using System;

class Sequences_For
{
    static int Fib(int n)
    {
        int a = 1, b = 1;
        for (int i = 1; i < n; i++)
        {
            int c = a;
            a = b;
            b = c + b;
        }

        return a;
    }

    public static void Main()
    {
        Console.Write("Enter an integer value to see the Fibonacci sequence to that position: ");
        int n = Convert.ToInt32(Console.ReadLine());
        Console.WriteLine("The values of the Fibonacci sequence to the " + n + "th position are:");
        for (int i = 1; i <= n; i++)
        {
            Console.WriteLine(Fib(i));
        }
    }
}

Enter an integer value to see the Fibonacci sequence to that position: 15 The values of the Fibonacci sequence to the 15th position are: 377 610