A family gold week

IOI 2024 was the main event of last week (problems, results, top 5 on the left). This time Kangyang Zhou beat everyone including the problemsetters — huge congratulations! I also lost 3 hall of fame positions this year: congratulations to Daniel Weber, Rain Jiang and Kshitij Sodani on the amazing performance over many years :)

The IC, ISC and HSC (and later the GA, I guess) had to deal with a controversy, and were put into a situation where no matter what they decide, somebody would feel very disappointed. However, I expect that the democratic process by which those decisions were taken (first within the IC, and then when confirming at the GA) helps those unhappy with the decision still accept it. And of course, I'd like to express my great respect to the IC members for navigating this very tricky case. Well done!

Similar to the last year, one author created several problems, which still impresses me a lot even though it is happening for the second year in a row. Well done Pikatan Arya Bramajati!

The 3rd Universal Cup Stage 9: Xi'an on Saturday was likely the last practice for many teams before the upcoming ICPC World Finals 2024 in Astana (problems, results, top 5 on the left). Team HoMaMaOvO have finally got back to the winning ways, wrapping up the contest with more than an hour to spare and with a respectable margin to the second place. Congratulations!

It seems quite hard for me to match this scoreboard with the (incomplete) list of teams coming to Astana, so maybe the readers of this blog can help: what is the highest-placed team in that scoreboard that is going to the World Finals?

There will be no contests this week, but this is just a small break before another huge event, as ICPC World Finals in Astana is already happening next week (website, brochure, some news on the left). So expect this blog to become a travel blog again, and we'll likely be organizing another stream of us solving the round in parallel, even though the meaning of "us" is unclear given that tourist is now a judge.

Thanks for reading, and check back next week for the Astana content!

A 4009 week

Codeforces Round 969 took place on Friday (problems, results, top 5 on the left, analysis, ratings). Edging out jiangly by just 5 points, tourist has finally broken the 4000 rating barrier. Even though one might say that 4000 is just a round number with no special meaning in the rating system, Gennady's recent run of form is simply amazing. He has won 6 out of his last 7 Codeforces contests, something that has not happened since 2015 (and even though I only checked Gennady's rating history, I can confidently say that it never happened for any other contestant), and which is even more impressive now given the much stronger competition in 2024. Congratulations!

The 3rd Universal Cup Stage 8: Cangqian followed on Saturday (problems, results, top 5 on the left). Gennady's team continued very impressive form here as well, winning the 6th stage in a row, and turning what was a very close two-horse race last season into a Max Verstappen-like domination (oh wait!). It was quite close this time, and by the end of the contest team HoMaMaOvO was solving problems faster, but they could not make up the time lost in the beginning. Congratulations to both teams and to the team Polish Mafia for the third full score!

Next week, IOI 2024 in Alexandria, Egypt will take front stage (participants). Together with the ICPC, the IOI is one of the two really big events in the competitive programming world. It is the event defining the year for the high school students who practice for it, and also the event where friendships can be made for the years to come. Good luck to all participants, check back my blog for the results next week (or just find them at the official website), and also check out the Swiss team's blog!