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ballpointcarrot/sum_squares.rb

Created April 20, 2011 15:39
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A simple solution to finding the difference of the "square of the sums" and the "sum of the squares."
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sum_squares.rb
def sums(n)
(1..n).inject(0){|sum,i| sum + i**2}
end
def squares(n)
(1..n).inject(0){|sum, i| sum + i} ** 2
end
puts squares(100) - sums(100)
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