Ruby で
[1, 6, 4, 3, 6] + [5, 4, 3, 2, 1] = [6, 10, 7, 5, 7]
をやる一つの方法。
ary1 = [1, 6, 4, 3, 6]
ary2 = [5, 4, 3, 2, 1]
ary1.zip(ary2).map {|a, b| a + b} # => [6, 10, 7, 5, 7]
「n個の配列の各要素をそれぞれ〇〇した配列を作成」には、ほとんどの場合 .zip.map が使える。
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