Submission #2211115

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Source Code Expand

n,m = gets.split(" ").map { |item| item.to_i }

# x + y + z = n
# 2x+ 3y+ 4z= m

# x + y + z = n
#     y +2z = m-2n

# x +   - z = 3n-m
#     y +2z = m-2n

if m-2*n < 0 # y>=0
  puts "-1 -1 -1"
else
  for i in 0..n do
    z = i
    x = 3*n-m+z
    y = m-2*n-2*z
    if x>=0 && y>=0
      puts "#{x} #{y} #{z}"
      break
    elsif i == n
      puts "-1 -1 -1"
    end
  end
end

Submission Info

Judge Result