We have 73 teams registered, but apparently 4 teams did not show up (3 locals and 1 foreign). There are 58 local teams from:
- Top 50 of INC 2014 (Indonesia National Contest),
- Top 5 ∪ 3 best Sumatra teams (total 7 teams) from ICPC 2014 Provincial Sumatra,
- Top 5 from CompFest 2014.
However, only 1 team claim their right to qualify from CompFest 2014; the other 4 forfeited as they wanted to compete in INC 2014 (they’re qualified from INC).
and 15 foreign teams.
Unlike in any other regionals (… which I know) where all teams compete in one big room, in Jakarta (Bina Nusantara University), teams are divided into 5 contest rooms. However, those rooms are separated by glass windows (you can see all other teams from any contest room), so, virtually, it’s “one” big room. Before the contest starts, teams were asked to verify their PC2 login account by trying to log in into the system. This to ensure there are no login problem (e.g., wrong password) when the real contest starts. Even though the committee seems to be confident with the username/password distribution, we encountered problems with two teams: they cannot login into their PC2. Upon inspection, it seems one team tried to use their practice session’s account (which of course, different), while the other mistakenly ripped the username/password and used a wrong account. Because of these problems, I have to run back and forth between contest and judge’s room (I had not gotten my walkie talkie at this time), and the contest was delayed for 15 minutes.
Aside those (login) problems, the contest itself was quite smooth.
This year we have two honorary judges: Denny from University of Indonesia, and Lucky Adhie from Bandung State Polytechnic. Actually, we invite other three: Dr. Teddy Mantoro, Niko Ibrahim, and Hardy; however, Dr. Teddy and Niko couldn’t make it to the contest as they have to attend another important meeting with APTIKOM, and Hardy suddenly had an important problem (he cancelled his flight the night before). We also have (quite a lot) assistant judges: Ricky Winata, Winardi Kurniawan, Eko Mirhard, Panji Kharisma, Felix Jingga, Felix Perdana, Albert Lie, Harryanto, and Ang Ing Ing. They are programming contest alumni which were invited to help with the judging process.
As usual, each accepted problem in the first four hours of contest will get a balloon of various colors. Each color represents one problem. I don’t remember the exact colors, but I’m sure the RED color belongs to the easiest problem (problem A). It was intended, as we want to make the atmosphere be more happy (red is a bright color, and contestant’s t-shirt is yellow). The committees only prepared 10 balloon colors (usually there are only 10 problems, but this year we have 11). So, there are 2 problems with the same balloon colors. We decided it’s going to be problem G and K, with balloons for problem K has a stripe (black tape) on it.
The contest was quite interesting. We expect some strong teams to dominate the contest, e.g.,
- ThanQ+ from NUS – they’re the winner of previous year ICPC in Jakarta, with one member change,
- Taipei-Hot from NTU (Taiwan) – they won 3rd place in recent ICPC in Taichung, and they’re 1st in the first four hours; also team from NTU (Taiwan) completely dominated ICPC 2010 and ICPC 2012 in Jakarta (there were no ICPC 2011 in Jakarta) even though it’s a different team,
- from local teams: BerinGAS from UI – they’re the winner of INC 2014 who solved all the problems.
At early contest time, BerinGAS managed to lead the scoreboard for a while when their 3rd problem got accepted in minute 39. However, they took quite a while before their 4th problem get accepted in minute 80. At this time, there are already several other teams ranked higher. The contest was mostly dominated by ThanQ+ (as expected) and Team X from Korea University. ThanQ+ took the lead with 10 problems solved until their closest competitor, Team X, solved their 11th problem in minute 201; however, ThanQ+ managed to seize back their position when they solved the last problem in minute 218. ThanQ+ has penalty time of 1224, while Team X has 1292, thus the champion prize went to ThanQ+, while the runner up is Team X. On the third place, Java# from VNU University of Engineering and Technology, also managed to solve all the problems. Their last problem was problem K which was accepted in minute 291, 9 minutes before the contest end.
I noticed two notable teams which were able to solve 3 problems in the last hour of the contest:
- UMN-Alpha (Universitas Multimedia Nusantara) from 4 to 7 (problem D, E, and F),
- CPCU Happy Night (Chulalongkorn University) from 6 to 9 (problem D, G, and J).
How about the host teams (Bina Nusantara University)? I don’t know what happened to them. Lately they couldn’t perform as expected when competing in their own home. I expect the best teams (Sylph and Panda Shu) to solve 8 to 9 problems, but they only managed to solve 6 problems in this contest. They performed quite good in other local contest. Sylph even managed to get runner up position in INC 2014 by solving 9 out of 10 problems. Maybe there are some unknown factors in ICPC Jakarta (e.g., maybe they hate the contest room or distracted by the snacks?); who knows.
BTW, I noticed that ICPC contestants (in general) are getting stronger and stronger each year. Now three teams managed to solve all problems in contest time. It’s time for the problem-setter to prepare harder problems for them.
BINUS always managed to serve tasty local foods for the dinner party. Even though I was invited to the VIP room (different kind of food, “table manner” – more like serious discussion during dinner, etc.), but I enjoyed food not in VIP room better, of course, while chatting with contestants and old colleagues.
“Greatest achievement in ICPC”
During dinner party, I noticed one contestant (from local team) asking an escort to take a photo with him. He then took a photo together with the escort, only two of them in the photo; I don’t need to mention that the escort is a she, right?. When I confronted him, I asked “why don’t you asked her phone number?”. He replied that (with happy face), that was (the photo) already his greatest achievement in ICPC for 4 years :))
If you wonder who he is. He is the same “ITB” guy during the photo session.