Unofficial Div 4 Round #2

Revision en11, by ssense, 2021-01-07 22:30:38

Hello Codeforces!

I_Love_YrNameCouldBeHere and I are glad to invite you to Unofficial Div 4 Round #2. Which will take place this Wednesday at 14:35 UTC (The round is over now, but you can still participate virtually). The round will not be rated for any participants since it is unofficial.

Contest link:

You will be given six tasks and two hours to solve them. The problems were created and prepared by ssense and I_Love_YrNameCouldBeHere for users with a rating range from 0 to 1400 but anyone is welcome to participate in the round!

We want to thank everyone who was involved in the round preparation:

Errichto for thorough testing and publishing this round on the gym.

Also, after the contest Errichto will post videos about this contest and the responsibilities of a tester.

UPD: Videos are now up: Fixing A, Testing A, Testing the rest.

Brodicico for help with problems and testing the round.

And a huge thank you to the testers: Errichto, 1-gon, galen_colin, gupta_samarth, arujbansal, Chihai_Ion and Grumpah .

MikeMirzayanov for Polygon and Codeforces platforms.

Even though the contest is unrated, we believe it is an excellent way of practice, especially for Div 4 users.

Remember, if you don't know how to solve one problem, look at others!

UPD 1: Registration available now!

UPD 2: Round is over! We hope you enjoyed the problems and congratulations to the winners!

UPD 3: Editorial is out!

Div. 4 winners:

  1. doing_cloth

  2. anshu_man

  3. Pranava23

Not Div.4 Winners:

  1. Geothermal

  2. Maksim1744

  3. Mucosolvan

First to solve each problem:

A: First: Valera_Grinenko

Div. 4 first: anuragdvd

B: First: Geothermal

Div. 4 first: Lelouch_1

C: First: Geothermal

Div. 4 first: Lelouch_1

D: First: Geothermal

Div. 4 first: RamPrabodhInduri

E: First: Geothermal

Div. 4 first: -deleted-

F: First: IgorI

Div. 4 first: sahaun

Tags div 4, beginner, contest, unofficial


  Rev. Lang. By When Δ Comment
en11 English ssense 2021-01-07 22:30:38 6
en10 English ssense 2020-11-26 22:43:09 215 Tiny change: 'are now up\n\n[Fixing A]' -> 'are now up: [Fixing A]'
en9 English ssense 2020-11-26 21:20:41 70
en8 English ssense 2020-11-25 21:21:09 65 Tiny change: '=%3A&ah=2)(The round' -> '=%3A&ah=2) (The round'
en7 English ssense 2020-11-25 19:49:18 65
en6 English ssense 2020-11-25 19:40:06 40 Tiny change: 'nners!\n\nDiv. ' -> 'nners!\n\nEditorial will be available shortly!\n\nDiv. '
en5 English ssense 2020-11-25 19:39:33 918 Tiny change: 'winners:\n1. [user' -> 'winners:\n\n1. [user'
en4 English ssense 2020-11-25 11:33:48 38 Tiny change: 'at others!' -> 'at others!\n\n\nUPD: Registration available now!'
en3 English ssense 2020-11-24 20:22:48 79
en2 English ssense 2020-11-23 19:24:21 2 Tiny change: '201125T1435&p1=%3A&ah' -> '201125T1430&p1=%3A&ah'
en1 English ssense 2020-11-23 18:13:14 1606 Initial revision (published)