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tudorpavel/functions.rb

Created May 26, 2015 15:01
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functions.rb
def calc(arr)
arr[0] + (13.0 * arr[1] / arr[2]) + arr[3] + (12 * arr[4]) - arr[5] + (arr[6].to_f * arr[7] / arr[8])
end
def solutions
[1,2,3,4,5,6,7,8,9].permutation.to_a.keep_if { |p| calc(p) == 87.0 }
end
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