AUCPL Division A Round 4 brought to you by Adelaide Competitive Programming Club and sponsored by Susquehanna

This round is a special collaboration between the ACPC and the SPCPA. The first 13 questions are regular programming problems centered around a common story: the murder of Kevin Lac.

The 14th problem will allow you to guess the identity of the murderer. This question is worth 0 points, and is just for fun. Any teams who get this problem correct will be added to the "Detective Hall of Fame", with special places for teams who provide an especially accurate description of what happened.

You will not get feedback on this problem (submissions will be pending until the end of the contest), and only your team's last submission to this problem will be judged.

Good luck!

Note: This is a work of fiction. While some characters are inspired by real people, the events, dialogue, and depictions are fictional and should not be taken as representing the actual views, actions, or characteristics of any real person.

The only allowed use of documentation are the following websites. DO NOT SEARCH THESE UP ON THE INTERNET! CLICK THE FOLLOWING LINKS INSTEAD:

• C++ documentation
• Python documentation
• Java documentation

In addition to our terms of service, we will be enforcing the following rules:

• You must use the university computers.
• Internet use is forbidden. You may only use the provided documentation.
• Only 1 account and computer may be submitting solutions at all times. If you break this rule, you will get a 2x time penalty.
• Only 1 computer per team may have a keyboard, other PCs must have their keyboards placed behind their monitor.
• No templates or pre-written code may be used. You may bring reference materials that contain up to 25 pages, A4 size (25 sheets if single-sided, 13 sheets if double-sided). This may be handwritten or printed.
• Only C++, Python or Java language editor extensions may be used. Any other editor extensions are forbidden.