Codeforces Round 896 — screencast and editorial

Revision en7, by orz, 2023-09-16 19:44:13

Dear friends,

Today I tried an experimental format: separate videos. So, today I participated in Codeforces Round 896 (Div. 1) and recorded a screencast, but, unlike the previous times, I did not immediately record the editorials. Instead several videos are dedicated to them. So here are the links:

UPD: I recorded the upsolving of 1869F - Flower-like Pseudotree (see the link above). I guess my explanation was quite fine, but in one case I incorrectly calculated the preconditions, which resulted in WA (223630659) and, subsequently, a huge mess and pain. It is still quite educational stuff though: the first half of the video is just a normal editorial (but, alas, with a technical mistake which should't screw the flow of the problem though), and the second one can teach you how to seek for bugs in problems like this one (with a big number of cases).

Also keep noted that for now the video is low-resolution. It will fix itself in half an hour or so. UPDUPD: the high resolution version has been processed and is available on YouTube.


  Rev. Lang. By When Δ Comment
en7 English orz 2023-09-16 19:44:13 88
en6 English orz 2023-09-16 19:26:08 4 Tiny change: '0659]) and subsequent a huge me' -> '0659]) and, subsequently, a huge me'
en5 English orz 2023-09-16 19:17:04 146 (published)
en4 English orz 2023-09-16 18:58:58 5 Tiny change: 'lanation were quite fin' -> 'lanation was quite fin'
en3 English orz 2023-09-16 18:52:55 572 (saved to drafts)
en2 English orz 2023-09-11 11:00:50 1 Tiny change: 'o them. So, here are ' -> 'o them. So here are '
en1 English orz 2023-09-11 03:53:23 1369 Initial revision (published)