C#: Sum of even fibonacci numbers
- by user300484
Hello you all! im developping an application that will find the sum of all even terms of the fibonacci sequence. The last term of this sequence is 4,000,000 . There is something wrong in my code but I cannot find the problem since it makes sense to me. Can you please help me?
using System.Collections.Generic;
using System.Linq;
using System.Text;
namespace ConsoleApplication1
{
class Program
{
static void Main(string[] args)
{
long[] arr = new long [1000000] ;
long i= 2;
arr[i-2]=1;
arr[i-1]=2;
long n= arr[i];
long s=0;
for (i=2 ; n <= 4000000; i++)
{
arr[i] = arr[(i - 1)] + arr[(i - 2)];
}
for (long f = 0; f <= arr.Length - 1; f++)
{
if (arr[f] % 2 == 0)
s += arr[f];
}
Console.Write(s);
Console.Read();
}
}
}
