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fabrizioc1/puzzle_1.rb

Created November 18, 2011 04:51
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puzzle 1
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puzzle_1.rb
one_million = (1..1e6).to_a
one_million_sum = (1.0e6+1)*1.0e6/2
missing = one_million.delete(rand(one_million.size))
one_million_minus_missing_sum = one_million.reduce(0){|sum,current| sum + current}
puts (one_million_sum - one_million_minus_missing_sum) == missing ? "It works" : "Did not work"
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