problems, results, top 5 on the left, my screencast, analysis). My easy-hard-medium strategy has hurt me this time, as after submitting the hard I saw others get 500+ points for the medium and submitted it without enough thinking, leading to a resubmit later. On the other hand, I could submit, stress-test, debug, fix and resubmit it without the pressure of "should I switch to the hard instead?" :) It was hard to fight for the top places with the resubmission. Even though the medium problem was much harder than the other two for lyrically as well, she got it right from the first attempt and earned 5 TCO21 points. Congratulations!
the origin of "Polish Mafia" team name (problems, results, top 5 on the left, analysis). I could not solve problem C (neither could I solve problem F, but I did not spend much time on it), and I was not alone. That makes the performance of tourist, Benq and Radewoosh who solved all six problems even more impressive, well done! Even they have solved problem C as their last or next-to-last problem, suggesting it was also quite tricky for them.
Thanks for reading, and check back for more!