edited the packet a little

exam/packet.tex

@@ -48,12 +48,12 @@
 
 \section*{Instructions}
 \begin{enumerate}[label=\arabic*.]
-    \item This test contains algorithmic problems similar to those found on LeetCode or HackerRank.
-    \item Use efficient algorithms to avoid timeouts; naive solutions may not receive full marks.
-    \item Submit solutions in C++, Python, or Java.
-    \item For each problem, write a function or program according to the specified input/output format.
-    \item Clearly comment your code if necessary.
+  \item Use Java. IntelliJ and other common IDEs are available on the provided systems. 
+  \item Write the most efficient solution you can. Solutions have been profiled for optimal performance, and suboptimal solutions risk being timed out. 
+  \item Open and log ito $\text{PC}^2$ early. 
+  \item Use fast IO, testcases can be up to 1 GB in size. 
 \end{enumerate}
+
 \begin{comment}
 % ========================= Problem 1 =========================
 \problem{Problem 1: Two Sum}