Implementando e testando QuickUnion vs QuickFind:

$ ruby client.rb quick_find
Processing QuickFind
  user     system      total        real
7.290000   0.000000   7.290000 (  7.299045)

$ ruby client.rb quick_union
Processing QuickUnion
  user     system      total        real
0.310000   0.000000   0.310000 (  0.316828)