ARC#004 B問題

gistfile1.txt

#! /usr/bin/env ruby
# coding: utf-8

n = STDIN.gets.to_i
pt = []

max = 0
sum = 0
list = []
(0...n).each do |i|
  a = STDIN.gets.strip.to_i
  list[i] = a
  max = a if max < a
  sum += a
end

print "#{sum}\n"
if n == 1
  print "#{sum}\n"
elsif n == 2
  print "#{(list[0] - list[1]).abs}\n"
elsif sum - max > max
  print "0\n"
else
  max += max
  (0...n).each do |i|
    max -= list[i]
  end
  print "#{max}\n"
end