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Apply TodayEach 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 the input value, find the sum of the even-valued terms.

130 correct solutions
182 incorrect solutions

Last solution submitted on Mar 03, 2014

1 player likes this problem

1 Comment

Harish Maradana
on 13 Mar 2013

test for cheating

1 Comment

Peter Wittenberg
on 14 Apr 2012

OK, I gamed this one so it only works up to about 1 billion. I wanted to see everyone else's interesting solutions.

1 Comment

Alfonso Nieto-Castanon
on 3 Feb 2012

this trick (c.f. Solution 26456) works only for these particular test cases, it would fail for example with euler002(6)...

1 Comment