sort.rb

# # Sort the array from lowest to highest
# def sort(arr)
#   arr.sort
# end

def bubble_sort(array)
  #n = total number of values in array
  n = array.length

  loop do 
    #iterate through the array to find the highest number
    swapped = false

    (n-1).times do |i|
      if array[i] > array[i + 1]
        array[i], array[i + 1] = array[i + 1], array[i]
        swapped = true
      end
    end

    break if not swapped
  end
  
  array
end

# # Find the maximum 
def maximum(arr)
  bubble_sort(arr).last
end

def minimum(arr)
  bubble_sort(arr).first 
end
 
# expect it to return 42 below
result = maximum([2, 42, 22, 02])
puts "max of 2, 42, 22, 02 is: #{result}"

# expect it to return 2 below
result = minimum([2, 42, 22, 02])
puts "min of 2, 42, 22, 02 is: #{result}"

 
# expect it to return nil when empty array is passed in
result = maximum([])
puts "max on empty set is: #{result.inspect}"
result = minimum([])
puts "min on empty set is: #{result.inspect}"
 
result = maximum([-23, 0, -3])
puts "max of -23, 0, -3 is: #{result}"
 
result = maximum([6])
puts "max of just 6 is: #{result}"