====== How to Write a Greedy Exchange Proof ======

  * [[http://web.stanford.edu/class/archive/cs/cs161/cs161.1138/handouts/120%20Guide%20to%20Greedy%20Algorithms.pdf|Guide to Greedy Algorithms]], including exchange proofs
  * [[http://www.cs.pitt.edu/%7Ekirk/cs1510/notes/greedynotes.pdf|Greedy Notes]] - from UPitt's Professor Kirk Pruhs's algorithms class