HackerRank - bubleSort.rb

#!/bin/ruby

n = gets.strip.to_i
a = gets.strip
a = a.split(' ').map(&:to_i)
#puts a

endPos = a.count-1
swapCont = 0
#puts "ENDPOS=#{endPos}"

while endPos > 0
  swapPos = 0
  for i in 0..endPos.to_i-1 do
    #puts "i=#{i}"
    if a[i] > a[i.to_i+1]
      tmp = a[i]
      a[i] = a[i.to_i+1]
      a[i.to_i+1] = tmp
      swapPos = i
      swapCont += 1
    end
  end
  endPos = swapPos
end

puts "Array is sorted in #{swapCont} swaps."
puts "First Element: #{a[0]}"
puts "Last Element: #{a[a.count-1]}"