Student matcher

peeps.rb

names = [
  "Alice",
  "Bob",
  "Carol",
  "David",
  "Eliza",
  "Frank",
  "Gretchen",
  "Harry",
  "Irene",
  "Joe",
  "Karen",
  "Luke",
  "Mary",
  "Nick",
  "Olga",
  "Pete"
]
numChoices = 5
numPerGroup = 3

peeps = names.map do |name|
  {
    name:     name,
    choices:  [],
    chosenBy: [],
    matched:  false
  }
end

peeps.each do |person|
  choices = peeps.dup
  choices.delete person
  names = []
  numChoices.times do
    choice = choices.sample
    next if person[:choices].include? choice
    person[:choices].push choice
    choice[:chosenBy].push person
  end
  puts "#{person[:name]} wants #{person[:choices].collect{|c| c[:name]}.join(",")}"
end

peeps.sort!{|a,b| b[:chosenBy].size <=> a[:chosenBy].size }

puts "*" * 10

peeps.each do |person|
  puts "#{person[:name]} chosen by #{person[:chosenBy].collect{|c| c[:name]}.join(",")}"
end

puts "*" * 10