voting.rb

total_peoples = 0
puts "how much groups?"
groups = gets.chomp.to_i
majority_of_each_group = Array.new

groups.times do 
  puts "how much people in group?"
  peoples = gets.chomp.to_i
  majority_of_each_group << peoples/2 + 1
end

majority_of_each_group.sort[0..groups/2].each { |gp| total_peoples += gp }

puts "You need just a #{total_peoples} for win those votes!"