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ruby implementation
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gistfile1.md 
(1..10).select{|x| x % 2 == 0}.map{|x| puts x / 2}
@zhywang
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zhywang commented Aug 29, 2013 

#!/usr/bin/env irb
[1,2,3,4,5,6,7,8,9,10].select{|x| x%2==0}.map{|x| x/2}

@johnelf
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johnelf commented Aug 29, 2013 

(1..10).select{|x| x % 2 == 0}.map{|x| x / 2}

@XuefengWu
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(1..10).select{|x| x % 2 == 0}.map{|x| x / 2}.each{|x| puts x}

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