Problem 2

Whelp I just wiped out this entire post by accident. That is so awesome. I've learned an important lesson about Blogger.

Oh well, it was probably too long of a post for such an uninteresting problem.

Each new term in the Fibonacci sequence is generated by adding the previous two terms. By starting with 1 and 2, the first 10 terms will be:

1, 2, 3, 5, 8, 13, 21, 34, 55, 89, ...

Find the sum of all the even-valued terms in the sequence which do not exceed four million.

if __name__ == '__main__':
    sum = 0
    cur = 1
    prev = 0

    while cur + prev <= 4000000:
        newPrev = cur
        cur = cur + prev
        prev = newPrev
        if (cur % 2 == 0):
            sum = sum + cur
    print sum