Project Euler 9

special_pythagorean_triplet.rb

def special_pythagorean_triplet(num)
  (1..(num/2)).to_a.combination(3).to_a.each do |set|
    sort_set    = set.sort!
    triplet     = (sort_set[0] ** 2 + sort_set[1]**2) == sort_set[2]**2 
    equals_1000 = (sort_set.inject(:+) == num)
    
    if triplet && equals_1000 
      answer = sort_set.inject(:*)
    else
      answer = "no special triplet"  
    end
  end
  puts "********************************"
  puts answer
end