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Print a fibonacci string recursively in C #

Can this be done without cycles?

static void Main(string[] args)
{
    Console.WriteLine("Please enter a number");
    int number = Convert.ToInt32(Console.ReadLine());
    Console.WriteLine(" #" + Fibonacci(number) );
}

public static int Fibonacci(int number)
{
    if (number <= 1)
    {
        return 1;
    }
    else
    {
        return Fibonacci(number - 2) + Fibonacci(number - 1);
    }
}

I can’t even add console.writeline to the body of the base code, since it runs [number] a number of times; Not sure how to do this without loops ...

+5
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10 answers
static void Main(string[] args)
{
    Console.WriteLine("Please enter a number");
    int number = Convert.ToInt32(Console.ReadLine());
    Fibonacci(0, 1, 1, number);
}   

public static void Fibonacci(int a, int b, int counter, int number)
{
    Console.WriteLine(a);
    if (counter < number) Fibonacci(b, a+b, counter+1, number);
}
+16
source 
public static int Fibonatchi(int position) {

    if(position == 0) {
        return 1;
    }
    if(position == 1) {
        return 1;
    } else {
        return Fibonatchi(position - 2) + Fibonatchi(position - 1);
    }
}
+3
source

, +

    static void Main(string[] args)
    { 
        Console.WriteLine("Please enter a number");
              int number = Convert.ToInt32(Console.ReadLine());
        for(int counter=0;counter<number;counter++)      
        Console.WriteLine(" \n" + Fibonacci(counter) );

    }

    public static int Fibonacci(int number)
    {

        if (number == 0)
            return 0;
        else if(number ==1)
          return 1;
        else
        {
         return Fibonacci(number - 2) + Fibonacci(number - 1);
        }

    }
+2
namespace Algorithms
{
    class Program
    {
        static void Main(string[] args)
        {
            string fibResult = "";
            fibResult =  FibCal(10);
            Console.WriteLine(fibResult);
            Console.ReadLine();
        }

        public static string FibCal(int n)
        {
            string series = "";
            int k, f1, f2 , f = 0;
            f1 = f2 = 1;
            if (n < 2) 
                return n.ToString();
            else
                for (k = 0; k < n; k++)
                {
                    f = f1 + f2;
                    f2 = f1;
                    f1 = f;
                    series += f.ToString() + ",";
                }

            return series;
        }

    }
}

,

0

- . . , while/for , .

0

LINQ

   public static void fibSeriesEx3()
    {
        List<int> lst = new List<int> { 0, 1 };
        for (int i = 0; i <= 10; i++)
        {
            int num = lst.Skip(i).Sum();
            lst.Add(num);

            foreach (int number in lst)
                Console.Write(number + " ");
            Console.WriteLine();
        }
    }
0

, main.

public static void Main() {

    Console.WriteLine("Introduce the number");
    int num = Convert.ToInt32(Console.ReadLine());

    int num1 = 1, num2 = 1, counter = num-2;

// 2 out, , 2 .

    Console.WriteLine(Fibo(num1, num2, counter));
}

public static int Fibo(int num1, int num2, int counter)    {

    int temp = num1;

    if (counter <= 0)
        return num2;
    else
        return Fibo(num1 = num2, num2 += temp, counter-1);
}
0
public static class Golden
{
    public static IEnumerable<long> Fibonacci()
    {
        var a = 0L;
        var b = 1L;
        var s = 0L;
        yield return a;
        while (a < long.MaxValue - b)
        {
            yield return b;
            s = a + b;
            a = b;
            b = s;
        }
    }

    public static IEnumerable<long> FibonacciR()
    {
        IEnumerable<long> Fibo(long a, long b)
        {
            yield return a;
            if (a < long.MaxValue - b)
            {
                foreach (var v in Fibo(b, a + b))
                {
                    yield return v;
                }
            }
        }
        return Fibo(0, 1);
    }
}
0

, , , .

while - , O (2 ^ n) . - , , . O (n) .

!

 static double fibDynamic(int n)
        {
            double[] array = new double[n];
            array[0] = array[1] = 1;

            for(int i = 2; i < n; i++)
            {
                array[i] = array[i - 1] + array[i - 2];
            }
            return array[n-1];
        }
0

:

static void Main(string[] args)
{
    Console.WriteLine("Please enter a number:");
    int number = Convert.ToInt32(Console.ReadLine());
    fibonacci(number); 
}

static void fibonacci(int n, int a = 0, int b = 1)
{
    if (n == 0) return;
    Console.WriteLine(a);
    fibonacci(--n, b, b+a);
}
0

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