56 lines
678 B
Ruby
56 lines
678 B
Ruby
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module Inject
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def inject(val)
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each do | element |
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val = yield(val, element)
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end
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val
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end
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def somme
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inject(0) do | s, element |
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s + element
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end
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end
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def produit
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inject(1) do | p, element |
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p * element
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end
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end
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end
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class Impairs
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include Inject
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def initialize(n)
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@cardinal = n
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end
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def each
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i = 1
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@cardinal.times do
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yield i
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i = i +2
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end
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end
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end
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class Integer
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def premiers_impairs
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Impairs.new(self)
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end
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end
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def carre(n)
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n.premiers_impairs.somme
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end
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3.premiers_impairs.each do | i |
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puts i.to_s
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end
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puts "Somme : #{3.premiers_impairs.somme}"
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puts "Produit : #{3.premiers_impairs.produit}"
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puts "Carré de 3 : #{carre(3)}"
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