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taiki45/for1to3to99reduce.rb

Created July 10, 2012 12:23
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s = 1, 3, ... 99 をすべて足す
Raw
for1to3to99reduce.rb
# without for
Array.new(50) {|n| 2 * n + 1}.inject(:+)
# with for
s = 0
for i in (0..49) do
s = s + lambda{|n| 2 * n + 1}.call(i)
end
s
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