Codeforces Round 914 (Div. 2) Editorial

Revision en30, by oursaco, 2023-12-10 01:55:13

Sorry for the weak pretests on A :(. We hope you enjoyed the round nonetheless.

1904A - Forked!

Idea: Apple_Method
Preparation: Apple_Method/oursaco
Analysis: lunchbox

Solution
Code

1904B - Collecting Game

Idea: oursaco
Preparation: oursaco
Analysis: lunchbox

Solution
Code

1904C - Array Game

Idea: lunchbox
Preparation: lunchbox
Analysis: lunchbox

Solution
Code

1904D1 - Set To Max (Easy Version) / 1904D2 - Set To Max (Hard Version)

Idea: oursaco
Preparation: oursaco
Analysis: oursaco

Hint 1
Hint 2
Solution
Code

1904E - Tree Queries

Idea: Apple_Method
Preparation: oursaco

Editorial 1:
Analysis: oursaco

Thanks to errorgorn for the solution!

Hint 1
Hint 2
Solution
Code

Editorial 2:
Analysis: willy108

Hint 1
Hint 2
Hint 3
Solution
Code

1904F - Beautiful Tree

Idea: Apple_Method
Preparation: oursaco
Analysis: Apple_Method

Hint
Solution
Code

History

 
 
 
 
Revisions
 
 
  Rev. Lang. By When Δ Comment
en30 English oursaco 2023-12-10 01:55:13 1 (published)
en29 English oursaco 2023-12-10 01:54:58 58 (saved to drafts)
en28 English oursaco 2023-12-09 21:54:07 0 (published)
en27 English oursaco 2023-12-09 21:53:02 96
en26 English oursaco 2023-12-09 21:51:23 32
en25 English oursaco 2023-12-09 21:45:35 4 Tiny change: 'ts on A :(\nWe hope yo' -> 'ts on A :(. We hope yo'
en24 English oursaco 2023-12-09 21:45:19 44
en23 English oursaco 2023-12-09 21:42:58 1 Tiny change: 'tests on A. :(\n\n[pr' -> 'tests on A :(\n\n[pr'
en22 English oursaco 2023-12-09 21:41:57 2 Tiny change: 'em:1904D1]/[problem:1' -> 'em:1904D1] / [problem:1'
en21 English oursaco 2023-12-09 21:41:27 8
en20 English oursaco 2023-12-09 21:41:00 36
en19 English oursaco 2023-12-09 21:40:12 12
en18 English oursaco 2023-12-09 21:39:56 13
en17 English oursaco 2023-12-09 21:38:33 17
en16 English oursaco 2023-12-09 21:38:21 8
en15 English oursaco 2023-12-09 21:37:47 6
en14 English oursaco 2023-12-09 21:37:18 22
en13 English oursaco 2023-12-09 21:36:16 815
en12 English oursaco 2023-12-09 21:30:42 20
en11 English oursaco 2023-12-09 21:30:11 8
en10 English oursaco 2023-12-09 21:29:25 51
en9 English oursaco 2023-12-09 21:28:04 2 Tiny change: '="Solution>\nLet's b' -> '="Solution">\nLet's b'
en8 English oursaco 2023-12-09 21:27:03 1 Tiny change: 'iler>\n\n</spoiler>\n\n```\n#in' -> 'iler>\n\n<spoiler summary="Solution">\n```\n#in'
en7 English oursaco 2023-12-09 21:26:23 6 Tiny change: 'oiler>\n\n\n<spoil' -> 'oiler>\n\n<spoil'
en6 English oursaco 2023-12-09 21:25:49 3120
en5 English oursaco 2023-12-09 21:22:29 30
en4 English oursaco 2023-12-09 21:20:00 70
en3 English oursaco 2023-12-09 21:19:23 24709
en2 English oursaco 2023-12-09 20:23:24 118 Tiny change: 'e' -> '\[problem:1904A]'
en1 English oursaco 2023-12-09 19:35:39 40 Initial revision (saved to drafts)