JOEZACK.COM Code Musings and Such

25May/094

Project Euler: Problem 20 in Ruby

I cheesed out on this one, pretty much just did what the problem called for. No magic. Looking through the forums, however, it was pretty much par for the course.

Problem #20

Find the sum of the digits in the number 100!

product, sum = 1, 0

100.times do |i|
  product *= i + 1
end

while product > 0
  sum += (product /= 10) % 10
end

puts sum
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  1. Arthritis Treatments :
    October 31st, 2010 - 04:21

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  2. Caramoan Island
    November 22nd, 2010 - 05:36

    wireless routers are very necessary nowadays because we do not want so many wires running around the home ;::

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    January 24th, 2011 - 16:20

    ‘-: I am very thankful to this topic because it really gives useful information “.-

  4. Complete Kitchen
    January 25th, 2011 - 01:36

    ‘:, I am really thankful to this topic because it really gives great information ~-”


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