Temperatures

solution.rb

# Auto-generated code below aims at helping you parse
# the standard input according to the problem statement.

@n = gets.to_i # the number of temperatures to analyse
@temps = gets.chomp # the n temperatures expressed as integers ranging from -273 to 5526

if @n == 0
    puts 0 
    return
end

# Write an action using puts
# To debug: STDERR.puts "Debug messages..."

closest = 5526

arr = @temps.split(" ").map { |s| s.to_i }

arr.each do |t|
    if t.abs < closest.abs
        closest = t
    elsif t.abs == closest.abs && t > 0
        closest = t
    end
end

puts closest

# А можно так
# if @n == 0
#     puts 0 
# else
#     puts arr.min_by { |t| [t.abs, -t] }
# end