Codeforces Round #842 (Div. 2) Editorial

Revision en39, by thanhchauns2, 2023-01-05 22:03:37

Hope you liked the problems!

(from thanhchauns2) Before the round starts

1768A- Greatest Convex

Author: thanhchauns2

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Solution
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1768B - Quick Sort

Author: Vladithur Preparation: Vladithur and Alexdat2000

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Solution
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1768C - Elemental Decompress

Author: thanhchauns2

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Solution
Yet another better solution
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1768D - Lucky Permutation

Author: Vladithur Preparation: Vladithur and Alexdat2000

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1768E - Partial Sorting

Author: thanhchauns2

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1768F - Wonderful Jump

Author: Vladithur Preparation: Vladithur and Alexdat2000

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Solution
Shorter solution (tfg)
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History

 
 
 
 
Revisions
 
 
  Rev. Lang. By When Δ Comment
en44 English Vladithur 2023-02-03 04:02:49 30
en43 English Vladithur 2023-01-06 17:57:11 75
en42 English thanhchauns2 2023-01-05 23:31:08 10
en41 English thanhchauns2 2023-01-05 23:29:25 8 Tiny change: '+= ` $C_{n - 0}^{n} \times C' -> '+= ` $C_{n}^{n - 0} \times C'
en40 English thanhchauns2 2023-01-05 23:28:22 4
en39 English thanhchauns2 2023-01-05 22:03:37 372
en38 English thanhchauns2 2023-01-05 21:56:37 171
en37 English thanhchauns2 2023-01-05 20:31:17 2 Tiny change: '\sum_{i = 1}^{n} C_{n' -> '\sum_{i = 0}^{n} C_{n'
en36 English SPyofgame 2023-01-05 19:48:22 1 Tiny change: 'ched $O(n log n)$ so' -> 'ched $O(n \log n)$ so'
en35 English SPyofgame 2023-01-05 19:47:51 286
en34 English SPyofgame 2023-01-05 19:45:41 6429
en33 English SPyofgame 2023-01-05 19:43:08 154
en32 English Vladithur 2023-01-05 19:39:16 4
en31 English Vladithur 2023-01-05 19:37:08 0 (published)
en30 English Vladithur 2023-01-05 19:24:35 8 Tiny change: 'r solution">\n\n~~~~' -> 'r solution (tfg)">\n\n~~~~'
en29 English tfg 2023-01-05 19:23:01 1095
en28 English thanhchauns2 2023-01-05 18:20:04 1 Tiny change: 'return __fractorial(n' -> 'return __factorial(n'
en27 English thanhchauns2 2023-01-05 18:19:48 6 Tiny change: 'rn __fraction(n * __num' -> 'rn __fractorial(n * __num'
en26 English thanhchauns2 2023-01-05 18:18:24 31 Tiny change: 'a_triangle + __thanhchauns2_will_reach_GM)`\n</spoi' -> 'a_triangle)`\n</spoi'
en25 English Vladithur 2023-01-05 16:49:38 19
en24 English Vladithur 2023-01-05 16:48:30 335
en23 English Vladithur 2023-01-05 13:32:05 225
en22 English Vladithur 2023-01-05 13:07:57 2659
en21 English thanhchauns2 2023-01-05 01:11:31 2 Tiny change: '_fraction(3 * __numbe' -> '_fraction(n * __numbe'
en20 English Vladithur 2023-01-04 23:14:09 37
en19 English Vladithur 2023-01-04 23:12:50 237
en18 English SPyofgame 2023-01-03 18:32:21 6
en17 English thanhchauns2 2023-01-03 15:50:18 101
en16 English thanhchauns2 2023-01-03 15:49:25 232
en15 English thanhchauns2 2023-01-03 15:47:38 67
en14 English thanhchauns2 2023-01-03 15:45:53 0 Tiny change: '1768A]\n\n' -> '1768A]\n\n[problem:1768A]\n\n'
en13 English Vladithur 2023-01-03 15:32:56 4
en12 English Vladithur 2023-01-03 15:32:35 240 Tiny change: 'imes (k) \vdots k$.\n\nTh' -> 'imes (k) \ \vdots \ k$.\n\nTh'
en11 English Vladithur 2023-01-03 15:20:25 121
en10 English Vladithur 2023-01-03 15:17:00 47
en9 English Vladithur 2023-01-03 15:10:58 6 Tiny change: '$ with $n * (j - i)$.' -> '$ with $n \cdot (j - i)$.'
en8 English Vladithur 2023-01-03 15:09:46 3
en7 English Vladithur 2023-01-03 15:08:37 179
en6 English Vladithur 2023-01-03 15:03:32 582
en5 English Vladithur 2023-01-03 14:50:27 245
en4 English Vladithur 2023-01-03 14:47:56 405
en3 English Vladithur 2023-01-03 14:41:58 11942
en2 English Vladithur 2023-01-03 14:40:49 3 Tiny change: '\n\n<spoiler' -> '\n<spoiler'
en1 English Vladithur 2023-01-03 14:31:51 4692 Initial revision (saved to drafts)