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Fall 2011 USC Programming Contest (2 Oct 2011)


The problems are available as a PDF document. The table below contains sample solutions programmed by participants during the contest, as well as the input data and correct solutions used by the judges.

ProblemC/C++ solutionJava solutionJudges' solutionInputCorrect Output
A - Weird CurrencyTBATBADarryl / Ryancurrency.incurrency.out
B - BarteringTBATBARyan / Aadarshbartering.inbartering.out
C - Runaway Time MachinesTBATBANoel / Aadarshmachines.inmachines.out
D - Preventing ParadoxesTBATBADarryl / Aadarsh / Noelparadox.inparadox.out
E - Geologic StrataTBATBADarryl / Noel / Aadarshstrata.instrata.out
F - Exotic FoodsTBATBAAadarsh / Noelfood.infood.out


There were 35 participants. 21 students solved at least one problem, 14 solved at least two problems, 9 students solved at least 3 problems, 7 students solved at least 4 problems and 3 students solved all 6 problems. The top five participants were the following.

RankNameProblems solvedcumulative time
1Yu Cheng (CSCI PhD)6553
2Rongqi Qiu (CSCI PhD)6570
3Siyu Yue (EE PhD)6858
4Zhen Lu (CSCI MS)4307
5Junda Chen (CECS/Math Senior)4346

The complete final standings are also available.

Cash prizes for the top four participants, food, T-shirts for everyone, etc. were provided thanks to our sponsors Google, Lockheed Martin, and Language Weaver.

We would also like to thank several volunteers who made this programming contest possible. VSoE made the labs available for the contest, and provided competent technical support. Darryl Deweese, Ryan Brown, Noel Overkamp and Aadarsh Patel and Liang Huang helped develop the problems and standard inputs/outputs. Aadarsh and Noel also took over the judging and clarification during the contest. Justin Lewis from Google came and talked to the contestants during the ceremony. Michelle Forcier, Tanay Mehta and Anita et al. from ACM organized check-in and photo-taking. Jiaping Zhao, Christina Chu and Adrian Cagaanan stayed with the contestants throughout the contest. Prof. Kempe supervised the whole procedure and gave us lots of suggestions.


Pictures of the contest are available for your viewing pleasure.