Submission #3300415

---

Source Code Expand

N = gets.to_i
POINTS = readlines.map{|l| l.split.map(&:to_i)}
m = POINTS.map{|x, y| x.abs + y.abs}.max
parity = (POINTS[0][0].abs + POINTS[0][1].abs) % 2

def command(x, y, m)
  ret = ""
  if x >= 0
    ret << 'R' * x
  else
    ret << 'L' * (-x)
  end
  if y >= 0
    ret << 'U' * y
    ret << 'DU' * ((m - x.abs - y.abs)/2)
  else
    ret << 'D' * -y
    ret << 'UD' * ((m - x.abs - y.abs)/2)
  end
  ret
end

if POINTS.any?{|x, y| (x.abs + y.abs) % 2 != parity}
  p -1
else
  puts m
  puts ([1] * m).join(' ')
  POINTS.each do |x, y|
    puts command(x, y, m)
  end
end

Submission Info

Compile Error

./Main.rb:24: warning: ambiguous first argument; put parentheses or a space even after `-' operator

Judge Result