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Mix up an array

array = [1,2,3,4,5] new_array = [] front_index = 0 back_index = array.length-1 while front_index <= back_index   new_array << array[front_index]   front_index += 1   if front_index <= back_index    new_array << array[back_index]     back_index -= 1   end end p new_array                                 # => [1, 5, 2, 4, 3]