In my version of the program, I used the following subprograms:

  treapRotateLeft
  treapRotateRight
  treapCount
  treapHeight
  treapWrite
  treapDelete
  treapInsert
  itemLoadTreap {Loads items from in input file into a treap.}
  treapOk {Boolean.  Checks to see whether treap conditions hold.}

My program is less than 4 pages long.  I was not trying to make it as short
as possible (nor should you).