Dear Sirs,
Just to improve my programming skills and experience I found amusing solving problems like the ones posed by project Euler. Doing so, using Ruby is a joy, compared to Objective-C that I've used for the same purpose in the past.
I'm stuck in the second problem though. Here is the issue:
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.
I think that my code solves it. Works when I test it to smaller fractions, can someone reply if there's something wrong with this snippet:
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# fibonacci
a = 1
b = 0
sum = 0
while a <= 4000000
# get the old value of "a"
c = a + b
#puts c
if (c % 2 != 0)
sum = sum + c
end
b = a
a = c
end
puts sum
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Well my result is: 10316618 . I know that the original Fibonacci sequence will have a (+1) in the beginning of the loop, but (probably) for the sake of convenience is ignored. The system however returns a "false error" in both 10316618 and 10316618 + 1.
Thanks in advanced & best regards
Panagiotis (atmosx) Atmatzidis
email: atma@convalesco.org
URL: http://www.convalesco.org
GnuPG ID: 0xFC4E8BB4
gpg --keyserver x-hkp://pgp.mit.edu --recv-keys 0xFC4E8BB4
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