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CodeCraft-18 and Codeforces Round #458 (Div. 1 + Div. 2, combined)
Difference between en5 and en6, changed 1,200 character(s)
Hello Codeforces!↵

I would like to invite you to CodeCraft-18, which will take place on [Saturday, 20th January, 9:05 PM IST](https://www.timeanddate.com/worldclock/fixedtime.html?msg=CodeCraft+%2718&iso=20180120T2105&p1=505). This is a combined Div. 1 + Div. 2 round and is **rated** for participants of both divisions.↵

CodeCraft-18 is part of [Felicity, IIIT Hyderabad](https://www.facebook.com/felicity.iiith)'s most awaited set of events, [Threads](https://felicity.iiit.ac.in/threads/). With a plethora of intellectually engaging online contests in various fields of programming, mathematics and general knowledge, Threads is a celebration of the spirit of computing and engineering. Other than CodeCraft, we have the Project Euler-style contest Gordian Knot and a jeopardy-style CTF event called Break In, amongst other events.↵

![ ](/predownloaded/4b/25/4b25242ba75efd5ad4c6c743919a3c8105525e4d.jpg)↵

I would like to thank the CodeCraft team -- [user:FundamentalEq,2018-01-19], [user:RohanRTiwari,2018-01-19], [user:additya1998,2018-01-19], [user:aman_shahi2,2018-01-19], [user:born2rule,2018-01-19], [user:codelegend,2018-01-19], [user:crvineeth97,2018-01-19], [user:deepanshugarg,2018-01-19], [user:devanshg27,2018-01-19], [user:mprocks,2018-01-19], [user:nir123,2018-01-19] and [user:virus_1010,2018-01-19] -- for their amazing work in problemsetting. I would also like to thank [user:gritukan,2018-01-19] for helping us prepare the problems, and [user:MikeMirzayanov,2018-01-19] for the great Codeforces and Polygon platforms.↵

Prizes↵
------------------↵
- Top 20 participants win Codeforces T-shirts↵
- Top 5 participants from India win Codeforces T-shirts↵

You will be given 8 problems and 3 hours to solve them. The scoring distribution will be announced later. Good luck!↵

**Update:** Scoring is 500 — 1000 — 1500 — 2000 — 2500 — 3000 — 3500 — 3750


**Update 2:** We would like to apologize about problem F and G, which turned out to be easier than we expected, and about the mistake in the statement of H.↵

Congrats to the winners!↵

Top 20:   ↵
1. [user:SkyDec,2018-01-21]   ↵
2. [user:Syloviaely,2018-01-21]   ↵
3. [user:matthew99,2018-01-21]   ↵
4. [user:dotorya,2018-01-21]   ↵
5. [user:FizzyDavid,2018-01-21]   ↵
6. [user:laofudasuanbaofushehui,2018-01-21]   ↵
7. [user:ikatanic,2018-01-21]   ↵
8. [user:j_______________________,2018-01-21]   ↵
9. [user:Um_nik,2018-01-21]   ↵
10. [user:cki86201,2018-01-21]   ↵
11. [user:rajat1603,2018-01-21]   ↵
12. [user:geniucos,2018-01-21]   ↵
13. [user:MrDindows,2018-01-21]   ↵
14. [user:Radewoosh,2018-01-21]   ↵
15. [user:pavel.savchenkov,2018-01-21]   ↵
16. [user:shanquan2,2018-01-21]   ↵
17. [user:613,2018-01-21]   ↵
18. [user:JOHNKRAM,2018-01-21]   ↵
19. [user:mxh1999,2018-01-21]   ↵
20. [user:satyaki3794,2018-01-21]   ↵

Top 5 in India:   ↵
1. [user:rajat1603,2018-01-21]   ↵
2. [user:satyaki3794,2018-01-21]   ↵
3. [user:jtnydv25,2018-01-21]   ↵
4. [user:akulsareen,2018-01-21]   ↵
5. [user:akashdeep,2018-01-21]   ↵

The [editorial](http://codeforces.com/blog/entry/57250) is ready!

History

 
 
 
 
Revisions
 
 
  Rev. Lang. By When Δ Comment
en6 English Superty 2018-01-21 01:31:08 1200 Tiny change: 'r:SkyDec] \n2. [use' -> 'r:SkyDec] \n2. [use'
en5 English Superty 2018-01-20 18:30:05 121
en4 English Superty 2018-01-20 00:30:21 56
en3 English Superty 2018-01-19 13:58:55 463
en2 English Superty 2018-01-19 11:40:45 4 Tiny change: 'lace on [Sunday, 20th ' -> 'lace on [Saturday, 20th '
en1 English Superty 2018-01-19 02:15:38 1407 Initial revision (published)