The 15th POSTECH Programming Contest (PPC) was held on Jun. 1 from 1 P.M. to 7 P.M. in Tae-Joon Park Digital Library. It has been hosted by the Department of Computer Science and Engineering every spring semester, and it aims to raise Postechians’ interest and ability in programming. This year, eight teams, each with one to three people, participated. Most participants were from the Department of Computer Science and Engineering. The participants could choose between visual C++/C and Java as their primary language when they registered for PPC, and they solved eight to ten problems during the given time.