Editorial of SWERC 2021-2022 Online Mirror

Revision en5, by cip999, 2022-04-19 22:29:45

Hello Codeforces!

Thanks for taking part in the SWERC 2021-2022 mirror. We hope you enjoyed thinking about the problems.

The contest was intended for a wide range of participants. As such, there were "very easy" to "easy" problems (A, M, H) as well as extremely challenging ones (B and J, neither of which appeared in the official contest, together with C). Some problems demanded the knowledge of specific techniques, algorithms or data structures (e.g. E, G, K, J), while others were purely based on insight and deduction (B, D, N).

But without further ado, let's present the editorial! (Also find the solutions in the attached pdf.)


Solutions


Solution of Problem A
Implementation

Statement by dario2994, preparation by dario2994


Solution of Problem B
Implementation

Statement by Giove, preparation by Giove


Solution of Problem C
Implementation

Statement by gangsterveggies, preparation by gangsterveggies


Solution of Problem D
Implementation

Statement by tap_tapii, preparation by tap_tapii


Solution of Problem E
Implementation

Statement by Petr, preparation by Petr


Solution of Problem F
Implementation

Statement by Simon, preparation by majk


Solution of Problem G
Implementation

Statement by cescmentation_folch, preparation by cescmentation_folch


Solution of Problem H
Implementation

Statement by majk, preparation by majk


Solution of Problem I
Implementation

Statement by tap_tapii, preparation by gangsterveggies


Solution of Problem J
Implementation

Statement by Simon, preparation by Simon


Solution of Problem K
Implementation

Statement by gog.gerard, preparation by gog.gerard


Solution of Problem L
Implementation

Statement by gog.gerard, preparation by gog.gerard


Solution of Problem M
Implementation

Statement by cip999, preparation by cip999


Solution of Problem N
Implementation

Statement by cip999, preparation by Delfad0r


Solution of Problem O
Implementation

Statement by Simon, preparation by Simon

Tags icpc, swerc, solutions, online mirror

History

 
 
 
 
Revisions
 
 
  Rev. Lang. By When Δ Comment
en8 English cip999 2022-04-24 19:19:27 0 (published)
en7 English cip999 2022-04-24 17:00:02 47
en6 English cip999 2022-04-24 10:02:09 750 Tiny change: 'oiler>\n\n<spoiler summary="Implementation">\n</spoiler>\n\n' -> 'oiler>\n\n'
en5 English cip999 2022-04-19 22:29:45 0 Tiny change: ' pdf.)\n\n<br>\n' -> ' pdf.)\n\n$$a = 2$$\n\n<br>\n'
en4 English cip999 2022-04-19 21:44:26 47
en3 English cip999 2022-04-19 21:39:54 280 Tiny change: 'orial:1662]\n</spoil' -> 'orial:1662C]\n</spoil'
en2 English cip999 2022-04-19 21:34:44 106
en1 English cip999 2022-04-19 18:13:09 3670 Initial revision (saved to drafts)