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joelibaceta/do_square.rb

Last active October 5, 2015 03:15
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do_square.rb
def square(n, ext_char, int_char)
(0..n).map{|i| p (0..n).map{|j| ([0, n].to_a & [i, j]).any? ? ext_char : int_char }.join}
end
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