[1,1] + [0,1] => [1,2]
的なことがしたい。
[[1,1],[0,1]].transpose.map{|ary| ary.inject(&:+)}
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[1,1] + [0,1] => [1,2]
的なことがしたい。
[[1,1],[0,1]].transpose.map{|ary| ary.inject(&:+)}
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