Codeforces Round #807 (Div 2.) Editorial

Revision en8, by MarkBcc168, 2022-07-15 18:53:06

Thanks for participating. We apologize for problem F that has appeared before. Still, we hope you all enjoy our round!

## 1705A - Фотограф Марк

Author: MarkBcc168

Hint 1
Hint 2
Tutorial
Code

## 1705B - Марк-уборщик

Author: MarkBcc168

Hint
Tutorial
Code

## 1705C - Марк и неоконченное эссе

Author: MarkBcc168

Hint 1
Hint 2
Hint 3
Tutorial
Code

## 1705D - Марк и лампочки

Author: MarkBcc168

Hint 1
Hint 2
Hint 3
Tutorial
Code

## 1705E - Марк и профессор Коро

Author: abc241

Hint 1
Hint 2
Hint 3
Hint 4
Tutorial
Code (Bitsets, by errorgorn)
Code (Lazy Segment)

## 1705F - Марк и онлайн-экзамен

Author: MarkBcc168

Unfortunately, a harder version of this problem has appeared in a Chinese contest here and here. You can look at their solution here. We thank many contestants who pointed it out.

Hint 0
Hint 1
Hint 2
Hint 3
Hint 4
Tutorial
Code

#### History

Revisions

Rev. Lang. By When Δ Comment
en13 MarkBcc168 2022-07-23 10:48:13 4
en12 MarkBcc168 2022-07-15 19:44:48 17
en11 MarkBcc168 2022-07-15 19:40:13 122
en10 MarkBcc168 2022-07-15 19:23:34 20
en9 MarkBcc168 2022-07-15 18:53:37 0 (published)
en8 MarkBcc168 2022-07-15 18:53:06 386
en7 MarkBcc168 2022-07-15 18:22:23 3104 Add the bitset solutions + Mention the block solution in D.
en6 MarkBcc168 2022-07-15 17:38:27 145
en5 MarkBcc168 2022-07-15 17:36:04 280
en4 MarkBcc168 2022-07-15 13:01:43 46 remove //debug() in E, fix spacing in F
en3 MarkBcc168 2022-07-15 12:56:24 55 fix the align in F
en2 MarkBcc168 2022-07-15 11:37:39 15347 D,E,F done
en1 MarkBcc168 2022-07-15 07:41:53 6576 A,B,C done (saved to drafts)