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Spring 2015 USC Programming Contest (April 4, 2014)


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 - Arriving at USCHo Ching Justin ChengWilson Yehspring05.javaspring05.inspring05.out
B - Summer on the Beachno solutionno solutionfall05.cppfall05.infall05.out
C - Midterm ElectionsErdong HuWilson Yehspring06.cppspring06.inspring06.out
D - 100 Years of EngineeringMatthew BurkeTobias Leefall06.cppfall06.infall06.out
E - Final ExamsMatthew BurkeNo solutionspring07.cppspring07.inspring07.out
F - Fall 2007Ziwen CaoBrian Schwedockfall07.cppfall07.infall07.out


There were 56 participants. 37 students solved at least one problem, 22 solved at least two problems, 15 students solved at least 3 problems, 8 students solved at least 4 problems, and 1 student solved all 5 problems. The top four participants were the following.

RankNameProblems solvedcumulative time
1Ziwen Cao (CS MS)5521
2Matthew Burke (CSCI Sophomore)4214
3Tobias Lee (CSCI Senior)4389
4Ho Ching Justin Cheng (CS Freshman)4393
5Zekun Li (CS MS)4501

The complete final standings are also available.

Cash prizes for the top participants, food, T-shirts for everyone, etc. were provided thanks to our sponsors Qualcomm, SDL, Vivantech, Facebook and Google. Computer games and swags for many participants were also donated by Electronic Arts.

We would like to thank VSoE for making the labs available for the contest. David Kempe wrote the problem set. Fritzie Mercado designed the contest shirts. Ehsan Emamjomeh-Zadeh worked as contest judge. Yu Cheng and Ruixin Qiang helped with all aspects of preparation and registration. We would also like to thank our volunteer Jing Huang, Jun Chen, Xinpei Yu and Preetam Pradeepkumar Shingavi who helped running the contest.


Pictures of the contest are available for your viewing pleasure.

Photo credit: Jun Chen, Michael Shindler.