leap_year.rb

def leap_year?(year)
  if year % 4 == 0
    puts "I am divisible by 4!"
    true
  elsif year % 100 == 0
    puts "I am divisible by 100!"
    false
  elsif year % 100 == 0 && year % 400 == 0
    puts "I am divisible by 100 and 400!"
    true
  elsif year % 4 == 0 && year % 100 == 0 && !(year % 400 == 0)
    puts "I am divisible by 4, 100 but not 400"
    false
  else 
    puts "The else condition"
    false
  end

end

# got these values from the spec
puts leap_year?(4)
puts leap_year?(100)
puts leap_year?(400)
puts leap_year?(3)

puts leap_year?(1988)
puts leap_year?(1989)
puts leap_year?(1998)
puts leap_year?(3)