  n      | insertion |   merge |    heap |   quick   (milliseconds)
    1000 |      0.09 |    0.05 |    0.03 |    0.04
   10000 |      7.82 |    0.59 |    0.37 |    0.48
  100000 |    806.91 |    7.48 |    6.41 |    6.93
 1000000 |   skipped |   97.02 |  122.72 |   66.79
