Unoficial Div 4 Round #2 Editorial

Revision en12, by I_Love_YrNameCouldBeHere, 2020-11-25 19:26:32

This is the editorial for the Unofficial Div 4 Round #2 created by I_Love_YrNameCouldBeHere and ssense.

We hope everyone had fun and enjoyed the contest!

We apologize for the queue at the beginning of the round. We should have used multi tests to avoid this problem.

Problem A — Catching the Impostor.

Tutorial
Solution

Problem B — Rabbit Game

Tutorial
Solution

Problem C — Similar Arrays

Tutorial
Solution

Problem D — Sanda's Job

Tutorial
Solution

Problem E — Count Substrings

Tutorial
Solution

Problem F — Game on Grid

Tutorial
Solution 1
Solution 2

History

 
 
 
 
Revisions
 
 
  Rev. Lang. By When Δ Comment
en18 English I_Love_YrNameCouldBeHere 2020-11-26 23:09:03 84 Tiny change: ' Editorial for the problems](https://' -> ' Editorial](https://'
en17 English I_Love_YrNameCouldBeHere 2020-11-26 00:41:29 1
en16 English ssense 2020-11-25 23:05:22 884
en15 English I_Love_YrNameCouldBeHere 2020-11-25 19:56:56 510
en14 English I_Love_YrNameCouldBeHere 2020-11-25 19:51:53 116
en13 English I_Love_YrNameCouldBeHere 2020-11-25 19:48:14 323 Tiny change: 'wing.\n\n<a href="https://ibb.co/fQsCdCZ%22%3E<img src="' -> 'wing.\n\n<img src="' (published)
en12 English I_Love_YrNameCouldBeHere 2020-11-25 19:26:32 116 Tiny change: 'is problem\n\nProble' -> 'is problem.\n\nProble'
en11 English ssense 2020-11-25 19:18:38 691
en10 English ssense 2020-11-25 19:07:51 72 Reverted to en8
en9 English I_Love_YrNameCouldBeHere 2020-11-25 18:58:37 72
en8 English I_Love_YrNameCouldBeHere 2020-11-25 18:55:25 30 Tiny change: ' can find cases dep' -> ' can find the answer by looking at the cases dep'
en7 English I_Love_YrNameCouldBeHere 2020-11-25 18:50:43 2638 Tiny change: 'from $1$. Let \textit{even cell} denote a ' -> 'from $1$. _Let even cell_ denote a '
en6 English I_Love_YrNameCouldBeHere 2020-11-16 19:56:56 21 Tiny change: ' larger then the medi' -> ' larger than the medi'
en5 English I_Love_YrNameCouldBeHere 2020-11-16 18:58:06 9199 Tiny change: '$ $2$ $=$ 0 it is a d' -> '$ $2$ $=$ $0$ it is a d'
en4 English I_Love_YrNameCouldBeHere 2020-11-16 17:37:59 1142
en3 English I_Love_YrNameCouldBeHere 2020-10-30 12:45:45 31 Tiny change: ' it would change by $x$.\nThe sam' -> ' it would become greater.\nThe sam'
en2 English ssense 2020-10-30 00:56:04 912
en1 English I_Love_YrNameCouldBeHere 2020-10-30 00:43:10 2525 Initial revision (saved to drafts)