ICPC Challenge Championship

On October 12th, Ahmet and Theodor traveled to Shenzhen to compete in the ICPC Challenge Championship powered by Huawei. Before the contest day, they participated in the excursion in Huawei’s Ox Horn Campus with other participants. That campus features twelve zones modeled after European cities such as Heidelberg, Český Krumlov, Verona, Budapest, and Tallinn, connected by a tram system inspired by Switzerland’s Jungfrau Railway.

The 5-hour competition brought together top competitive programmers, with Theodor finishing 40th and Ahmet 51st. In addition to the contest, Huawei recognized past ICPC coaches, presenting Ahmet with the Outstanding Mentorship Award.

Participants also met with Huawei’s founder and CEO, Ren Zhengfei, with meeting minutes available here. The event concluded with technical talks, visits to Shenzhen’s main attractions, and a party at Songshan Lake.

The 2024 ICPC World Finals Astana

After attending the programming camps in Paphos and Wroclaw, the dETHroners team, consisting of Michal, Paula, Theodor, and coach Ahmet, traveled to Astana to participate in the 48th Annual World Finals of the International Collegiate Programming Contest.

The level of competition was particularly high for the strong teams, and dETHroners finished with a rank of 19 out of 141 universities. Although the ETH team solved the same number of problems as the other bronze-medal team, they missed out on a medal due to time penalties. However, they were awarded ‘Highest Honors’, a distinction given to all teams that solved 7 problems during the contest but didn’t receive a medal because of time penalties. Several top European teams also solved 7 problems, and the European region winner was determined by time penalties as well, with ETH achieving Rank 4 in Europe.

The dETHroners deserve a lot of congratulations, as Rank 19 is the second-best result in ETH Zurich’s history at the ICPC World Finals.

The high-rise skylines of the city, the cold weather, chaotic traffic, great food, and fun activities at the event venue—like making necklaces with a giant hammer—and the transportation bus generously offering us free wifi (no further details on this :)) all created unforgettable memories from the World Finals.

We’ve heard two rumors about next year’s World Finals location. One suggests it will be in South America, and the other hints at Shanghai. Let’s see which one is true—until then, see you next time!

CPC Meetups Season Finale

Today, we had the last CPC Meetup of this semester. For this special session, Marc discussed the slope trick, and Paula presented on finding cycles in planar graphs where every vertex has a degree of at least 3. We concluded the meetup with pizza. See you next semester!

ETH CP Contest Results

On May 11th, we organized the largest competitive programming contest in ETH’s history. Over 100 people participated in teams of up to three members. Most teams consisted of ETH CS Bachelor’s and Master’s students, but there were also a few ETH PhD teams.

After the contest ended, we held an Apéro combined with a problem tutorial session, where we presented the solutions to our problems.

Constantin announcing the results after getting API work

Thanks to QuantCo, we had crazy prizes lined up for the top 3 teams and the best ersti team. They also sponsored the snacks&sandwiches during the contest and the Apéro after the contest. Their support was essential for the success of the contest.

Top 20
  • mETHroners (3D Printers + ANC Headphones)
  • Mr Malnars Lethal Peppers (ANC Headphones)
  • uhh this should actually be first place, sorry, system error (ANC Headphones)
  • 2musiketeers (ANC Headphones as the best Ersti Team)
mETHroners

JetBrains sent us vouchers for their merchandise store, and we came up with the following categories to award them.

  • Wrong answer on test 151 for getting first AC in the second minute
  • ML and AC for getting the last AC three minutes prior to the end of the contest
  • one forall for the first AC in Glitchy Language Model
  • börhack for getting AC after 10 unsuccessful attempts on Broken Polybahn
  • Bitwise Bandits for the most number of Mates on the table during contest.

Check out the blog post on Codeforces. You’ll find the problem set and tutorial slides there.

We were around 11 people who worked hard to bring this contest to life. Organizing a competitive programming contest for 100 participants was no easy task. We had to prepare the problem set, manage logistics like arranging food and drinks, reserve a suitable room, get the API to work for the scoreboard and prizes, and handle the printing.

Thanks to all members of CPC who helped for the contest(in alphabetical order): Ahmet, Antti, Benni, Constantin, Jan, Justina, Marc, Mihnea, Oleksandr, Oliver and Sascha.

well-deserved bubble tea after the committee dinner

ICPC World Finals 46th and 47th Results

On the 19th of April the joint World finals for 46 and 47th edition were held in Luxor, Egypt. It was an unusual World Finals as Covid had postponed previous editions so two were held jointly. ETH Zurich had teams qualify for both, in the 46th edition the team mETHodical was represented by Andrzej Turko, Christopher Burckhardt, Paula Vidas and their coach Bernhard Linn. In the 47th edition the team gETHyped was represented by Theodor Moroianu, Andon Todorov, Marc Dufay and their coach Antti Röyskö.

There were 11 problems given and the two contests shared 5 problems of which they had 5 hours to solve. ETHz team mETHodical made it to the 44th place out of 124 teams in the 46th edition with 6 problems solved, and ETHz team gETHyped made it to the 38th place out of 130 teams in the 47th edition with 5 problems solved. This year Peking University took first place in the 46th edition and National Research University Higher School of Economics took first place in the 47th edition. The coach for mETHodical, Bernhard also achieved 4th place in the ICPC Challenge for Coaches.

Congratulations to the teams!

Benni against tourist!

ETH Teams Won the Helvetic Coding Contest

Over the past weekend, we traveled to EPFL to participate in the Helvetic Coding Contest. The contest was well-organized, with lots of balloons, unlimited El Tony Mates, and fantastic prizes. A big thank you to the organizers!

The results were as expected. The professional category was won by the team “Felt smart(might unparticipate later)” consisting of Antti and Oleksandr from ETH. They dominated the contest from the start, never relinquishing their lead and solving 20 of 21 problems. The team “Breakfast Master Toaster” from ETH consisting of Michal, Priska and Andrei won the student category by solving 16 of 21 problems. Congrats to both teams!

ICPC European Championship 2024

We participated in the ICPC EUC last weekend in Prague, where we competed against the top 13 teams from each European region. dETHroners(Teo, Paula, Michal), finished 11th out of 52 teams. While this event offered teams a chance to qualify for the ICPC World Finals 2024 in Kazakhstan, dETHroners got their spot by smashing the SWERC in Paris earlier this year.

On Friday morning, Teo, Michal, and Ahmet were so eager that they hit Zurich airport super early. Meanwhile, Paula arrived just in time, having timed her arrival two minutes before boarding perfectly. Once in Prague, we hopped on trams that seemed to have witnessed the invention of the wheel. Further, we did an extensive sightseeing thanks to Michal’s guiding skills. Almost geting lost in a train station? But hey, we did not get stuck in the train station this time 🙂

The opening ceremony was a blast, filled with Czech humor and a Soviet Theremin Concert. And who could forget the surprise guests: Boston Dynamics Robots… most of them managed to walk, at least.

The Czech Technical University was like a fantasy world: elevators called “paternosters” and doors straight out of a hobbit’s dream. Of course, snapping pics by those hobbit doors was important—memories to show after 20 years?

During the contest, the coaches had to listen to a one-hour answer by the ICPC Executive Director explaining why ACM stopped sponsoring ICPC. Fortunately, Ahmet was preoccupied with the mirror contest alongside the Coach of Universität des Saarlandes.

Overall, everyone was impressed by the Prague organizers, who managed to avoid any major issues this time, unlike the two-hour power outage during the last contest in Prague. Some attendees were puzzled by the decision to hold the contest under a glass ceiling though!