shieldsd · March 13, 2012 08:43
diff --git a/euler2.py b/euler2.py
 from itertools import takewhile

 def fib():
    a, b = 1, 1
    while 1:
        yield a
        a, b = b, a + b

 print sum(n for n in takewhile(lambda f: f < 4000000, fib()) if n % 2 == 0)
	from itertools import takewhile

	def fib():
	a, b = 1, 1
	while 1:
	yield a
	a, b = b, a + b

	print sum(n for n in takewhile(lambda f: f < 4000000, fib()) if n % 2 == 0)