C# Fibonacci nr Help

[Redliquid]

using System;

using System.Collections.Generic;

using System.Linq;

using System.Text;

using System.Threading.Tasks;

 

namespace ConsoleApplication4

{

    class Program

    {

        static void Main(string[] args)

        {

            int a = 0;

            int b = 1;

            int sum = 1;

 

            for (int i = 0; i < 10; i++)

            {

                Console.WriteLine(sum);

                sum = a + b;

                a += b;

                b += sum;

            }

            Console.ReadKey();

        }

    }

}

 

So i'm trying to get the fibonacci nrs up to 10 but for some reason my program skips every second number
Why



 

My logic is in the white .txt file and the outcome from the program is in the black one to the right.

[Redliquid]

Nevermind i fixed it using my amazing brain Kappa

[MrSuperb]

sum = a + b;

Console.WriteLine(sum);
a = b;

b = sum;

[Ganz]

your logic for moving to the next number a+= b is incorrect.  should be a = b.  Same with sum.

[Redliquid]

I know i fixed it
But thanks x)