\section{Rules} This handout contains a set of problems. \par Each is marked with a few gold stars, which you collect by presenting a solution. \vspace{2mm} Below each problem is a list of hints, written next to their cost. \par To get a hint, you must pay the marked number of stars. \par Hints are usually provided in order, and are the same for all groups. \par \vspace{2mm} There is one exception: instructors may offer certain hints for a reduced fee, judging by your explanation of what you have so far. \begin{instructornote} This exception is for groups that are stuck on the last bit of a problem. \par If they've solved most of it, give them the information they already know for a steep discount (or even for free). \end{instructornote} An example problem is below. \vspace{4mm} \generic{Problem $0$:} \starvalue{4} This is a problem that's worth four points. \par Two hints are available. The first costs two stars (of the four available). \par The second costs one of the two stars available \textit{after} revealing the first hint. \begin{hintlist} Hint 1: \hintcontent{2}{4}{This is a hint. Only instructors see this.} Hint 2: \hintcontent{1}{2}{This is another hint.} \end{hintlist} \vfill You may notice that hints often cost a significant fraction of their problem's score. \par This is intentional---don't ask for hints unless you're very, very stuck. \vfill \pagebreak