Homework for 9/25

LTP_7-5.rb

# bottles of beer program
num = 99
while num > 0
  puts "#{num} bottles of beer on the wall, #{num} bottles of beer!"
  num -= 1
  puts "Take one down, pass it around, #{num} bottles of beer on the wall!"
end

# grandma program
puts "Say something to grandma:"
said = gets.chomp
bye_count = 0
while bye_count < 2
  if said != said.upcase
    bye_count = 0
    puts "HUH?! SPEAK UP SONNY!"
    puts "Say something to grandma:"
    said = gets.chomp
  elsif said != "BYE"
    bye_count = 0
    year = rand(1930..1950)
    puts "NO, NOT SINCE #{year}!"
    puts "Say something to grandma:"
    said = gets.chomp
  elsif said == "BYE"
    bye_count += 1
    puts "WHAT DID YOU SAY, DEAR?"
    puts "Say something to grandma:"
    said = gets.chomp
  end
end
puts "BYE NOW!"

# leap year program
puts "Give me a starting year:"
first_year = gets.chomp.to_i
puts "Ok, now give me an ending year:"
last_year = gets.chomp.to_i

years = (first_year..last_year).to_a

leap_years = []
years.each do |year|
  if year % 100 == 0 && year % 400 == 0
    leap_years.push(year)
  elsif year % 4 == 0 && year % 100 != 0
    leap_years.push(year)
  end
end
puts "Here are all the leap years: #{leap_years}"