stomatocode

def leap_year?(year)
  
  if year % 4 == 0
    puts true
  elsif year % 100 == 0
    puts false
  elsif year % 100 == 0 && year % 400 == 0
    puts true
  elsif year % 4 == 0 && year % 100 == 0 && !(year % 400 == 0)
    puts false

stomatocode

def welcome(string)
  
  if (string.match("CA"))
    puts "Welcome to California"
  else
    puts "You should move to California"
  end

end

stomatocode

def welcome(string)
  
  if (string =~ /CA(.*)/ )
    puts "Welcome to California"
  else
    puts "You should move to California"
  end

end

stomatocode

def leap_year?(year)
 if (year % 4 == 0)
   return true
  elsif (!(year % 400 == 0) and (year % 100 == 0 and year % 4 == 0))
   return false
  elsif ((year % 100 == 0 and year % 400 == 0) and !(year % 4 == 0))
   return true
 end
end