for "https://paiza.jp/poh/hatsukoi/"

_hatsukoi

https://paiza.jp/poh/hatsukoi/

eyes.rb

# drooping eyes
sheets, members = gets.split(' ').map(&:to_i)
puts ( sheets >= members ? 'OK' : 'NG')

# fishing eyes
points = (gets.to_i / 100)
puts (points >= 10 ? points + 10 : points)

# glass
size = gets.to_i
list = gets.split(' ').map(&:to_i).sort
puts list[(size - 1) / 2]

hairs.rb

# short hair
count = gets.to_i
puts ("#{gets.chomp}\n" * count)

# long hair
puts ((gets.to_i % 7 == 0) ? 'lucky' : 'unlucky')

# pony tail
count = 0
5.times do
  target, ans = gets.chomp.split(' ')
  count += 1 if target == ans
  break if count >= 3
end
puts (count >= 3 ? 'OK' : 'NG')

# twin tail
line = '-' * gets.to_i
line[gets.to_i - 1] = '+'
puts line

# osage
length = gets.to_i * 60
all = gets.to_i
count = 0
all.times do
  length -= gets.to_i
  break if length <= 0
  count += 1
end
puts (all == count ? 'OK' : count)

school_uniform.rb

# school uniform
def use!(cards, c)
  cards[c] -= 1
  cards.delete(c) if cards[c] <= 0
  cards.keys.max
end

table = {}
(3..10).each{|n| table[n.to_s] = n - 3}
table.merge!({'J' => 8, 'Q' => 9, 'K' => 10, 'A' => 11, '2' => 12})

cards = {}
(0..12).each{|n| cards[n] = 4}

players = {}
gets.chomp.split(' ').each.with_index do |c, i|
  players[i] = table[c]
end

nums = (0..51).to_a
ranking = []
rank = 1
now = -1

loop do
  break if nums.empty?
  nums.sort.each do |n|
    c = players[n]
    next unless c > now
    ranking[n] = rank
    rank += 1
    nums.delete(n)
    max = use!(cards, c)
    break unless max
    now = (c >= max ? -1 : c)
  end
end
puts ranking

sp.rb

# microphone
work = gets.to_f * 2
count = gets.to_f
puts (count / work).ceil

# headband
fans, sheet = gets.split(' ').map(&:to_i)
writes, pen_cost = gets.split(' ').map(&:to_i)
pen = (fans.to_f / writes).ceil
puts fans * sheet + pen * pen_cost

swim_wear.rb

# swim wear
def to_hash(cs)
  cs.chars.each_with_object(Hash.new(0)){|c, h| h[c] += 1}
end

gets
before = to_hash(gets.chomp)
after = to_hash(gets.chomp)
count = 0
after.keys.each do |k|
  c = after[k] - before[k]
  count += c if c > 0
end
puts count

wears.rb

# cute
mem, all = gets.split(' ').map(&:to_i)
puts (all % mem == 0 ? 'ok' : 'ng')

# sexy
step, down = gets.split(' ').map(&:to_i)
forward = step - down
puts (forward > 0 ? forward : 0)

yukata.rb

# yukata
temp = 0
now = 0
price = 0

forward = lambda do
  break if now > 23
  if temp > 0
    temp -= 1
    price += 2
  else
    price += 1
  end
  now += 1
end

gets.to_i.times do
  time, act = gets.chomp.split(' ')
  (time.to_i - now).times { forward.call }

  case act
  when 'in'
    temp += 5
  when 'out'
    temp += 3
  end
end
(24 - now).times{ forward.call }

puts price