[一覧に戻る]
irb> sum [[1, 2], [3, 4]] => 10 irb> sum [[-1, 0, 1], [-2, 0, 1]] => -1 irb> sum [[1], [0], [2]] => 3 irb> sum [[1, 3, 5, 7]] => 16
% ~ta001026/enshu1p/checker_e1.rb ファイル名