Solution: Number Sorting

array = [10, 8, 7, 3, 4, 5, 9, 1, 2, 6] 
array.each_with_index do |num, idx|
  # comparing No.idx with remaining ones
  (idx+1..array.size() - 1).each do |idx2| 
    if array[idx] > array[idx2]
      # swap
      array[idx], array[idx2] = array[idx2], array[idx] 
    end
  end 
end
puts "The numbers in order: #{array.join(', ')}"