AtCoder ABC #084 C. Special Trains

abc084-c.rb

# ABC084
# C. Special Trains
n = gets.chomp.to_i
c = []
s = []
f = []

(n-1).times do
  c_, s_, f_ = gets.chomp.split(" ").map(&:to_i)
  c << c_
  s << s_
  f << f_
end

n.times do |i|
  t = 0
  (i...(n-1)).each do |j|
    if t < s[j] then
      t = s[j]
    elsif t % f[j] == 0 then

    else
      t += (f[j] - t % f[j])
    end
    t += c[j]
  end
  puts t
end