Problem 2

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, …

By considering the terms in the Fibonacci sequence whose values do not exceed four million, find the sum of the even-valued terms.


My Solution:

#By considering the terms in the Fibonacci sequence whose values do not exceed four million, find the sum of the even-valued terms.
f=[1,2]
n=2
s=2
while n > 0:
    p=f[n-1]+f[n-2]
    f.extend([p])
    if f[n] > 4000000:
        break
    if f[n] % 2 == 0:
        s=s+f[n]
    n=n+1

print s