Lab on 2/21: Pointer Problets. When the app comes up, select "pointer" from the menu. A couple
of the screens take a long time (e.g., 15 seconds) to load, so be patient.
You are first given a short trial run that is not pointer-related so that
you get used to using problets. Then you are taken to the pointer app.
If you want Top Coder practice, try SRM 583, D2, 250-Pointer (SwappingDigits):
Hints