ouuan's blog

The most upvoted rounds on Codeforces
By ouuan, history, 5 years ago, In English

The top10 of them:

Rank ID Name Upvotes
1 913 Hello 2018 +2848
2 773 VK Cup 2017 — Round 3 +2247
2 806 Codeforces Round #412 (rated, Div. 1, based on VK Cup 2017 Round 3) +2247
2 807 Codeforces Round #412 (rated, Div. 2, base on VK Cup 2017 Round 3) +2247
3 1097 Hello 2019 +1909
4 549 Looksery Cup 2015 +1426
5 611 Good Bye 2015 +1387
6 1205 Codeforces Round #580 (Div. 1) +1335
6 1206 Codeforces Round #580 (Div. 2) +1335
7 908 Good Bye 2017 +1310
8 538 Codeforces Round #300 +1212
9 515 Codeforces Round #292 (Div. 2) +1116
10 1149 Codeforces Round #556 (Div. 1) +1064
10 1150 Codeforces Round #556 (Div. 2) +1064

I wanted to find some rounds with high upvotes for virtual participating, so I wrote a Python program to get this and shared it to the community. Hope it can be helpful.

For more information and the full list, please visit the Github Repo.

Suggestions are welcomed. (e.g. How to get the announcement URL if it's not on the contest page instead of doing it manually, like Codeforces Round 379 (Div. 2)?)

The list only contains the contests which have their annoucement URL (which matches /blog/entry/[0-9]*"[^>]*>Announcement[^<]*</a>) on the contest page.

UPD: The most upvoted round in each year:

Year ID Name Upvotes
2010 48 School Personal Contest #3 (Winter Computer School 2010/11) - Codeforces Beta Round 45 (ACM-ICPC Rules) +85
2011 135 Codeforces Beta Round 97 (Div. 1) +237
2011 136 Codeforces Beta Round 97 (Div. 2) +237
2012 193 Codeforces Round 122 (Div. 1) +367
2012 194 Codeforces Round 122 (Div. 2) +367
2013 264 Codeforces Round 162 (Div. 1) +446
2013 265 Codeforces Round 162 (Div. 2) +446
2014 472 Codeforces Round 270 +794
2015 549 Looksery Cup 2015 +1426
2016 618 Wunder Fund Round 2016 (Div. 1 + Div. 2 combined) +707
2017 773 VK Cup 2017 - Round 3 +2247
2017 806 Codeforces Round 412 (rated, Div. 1, based on VK Cup 2017 Round 3) +2247
2017 807 Codeforces Round 412 (rated, Div. 2, base on VK Cup 2017 Round 3) +2247
2018 913 Hello 2018 +2848
2019 (up to Sep.10th) 1097 Hello 2019 +1909

UPD2： The (announcement) writters with the highest average number of upvotes, who have written the contest annoucement in at least two rounds.

Handle Average Upvotes Number of Rounds
tourist 1800 3
antontrygubO_o 978 2
Radewoosh 836.6667 3
adamant 826.5 2
viktork 806 2
dreamoon_love_AA 737.5 2
Ashishgup 650.5 2
PrinceOfPersia 565.2857 7
majk 564.6 5
Errichto 545.7143 7
  • Vote: I like it
  • +101
  • Vote: I do not like it

Comments Comments (18)
| Write comment?
»
5 years ago, # |
  Vote: I like it +92 Vote: I do not like it

if(author == "tourist") put_on_top()

→ Reply
»
5 years ago, # |
  Vote: I like it +194 Vote: I do not like it

tourist taking both first and second place... sounds like Google Code Jam on steroids.

→ Reply
»
5 years ago, # |
  Vote: I like it 0 Vote: I do not like it

Is there a possibility of creating a list of least upvoted (most downvoted) rounds? That would be fun to see and try as well.

→ Reply
  • »
    »
    5 years ago, # ^ |
      Vote: I like it +22 Vote: I do not like it

    For more information and the full list, please visit the Github Repo.

    And the "full list" contains the most downvoted rounds.

    → Reply
    • »
      »
      »
      5 years ago, # ^ |
        Vote: I like it +13 Vote: I do not like it

      I found some meaningless "contest title" in contest.csv,

      such as in line 1050, 647 妥快抒扶抉抗批忌抉抗 2016 — 妍戒扶忘抗抉技我找快抖抆扶抑抄 妓忘批扶忱 2 11

      so what is it?

      → Reply
»
5 years ago, # |
  Vote: I like it +16 Vote: I do not like it

Project idea: plot the round upvotes with respect to the date of the round, and try to calculate "corrected" round scores that account for the fact that Codeforces has grown a lot (i.e. in the current list, newer contests have more upvotes because there are more members now).

→ Reply
  • »
    »
    5 years ago, # ^ |
      Vote: I like it +5 Vote: I do not like it

    Now you can see the start time of each contest in the chart.

    → Reply
»
5 years ago, # |
← Rev. 2   Vote: I like it 0 Vote: I do not like it

Antontrygubo_o is at top o_O!!

→ Reply
»
5 years ago, # |
  Vote: I like it 0 Vote: I do not like it

Create a list of the most upvoted editorials, and the less upvoted contests.

→ Reply
  • »
    »
    5 years ago, # ^ |
      Vote: I like it +5 Vote: I do not like it

    You can either read the post or the comments carefully to get the least upvoted contests.

    Editorials list is worthy of consideration.

    → Reply
    • »
      »
      »
      5 years ago, # ^ |
        Vote: I like it 0 Vote: I do not like it

      is always of interest the top and the anti-top

      → Reply
»
5 years ago, # |
← Rev. 2   Vote: I like it +5 Vote: I do not like it

I was wondering why was I notified by this blog entry, until reading the en7 version :D turns out my rounds so far are considerably good somehow (not yet enough to reach top 10).

Also, nicely done with the API and all the scripts. ;)

P/s: Currently thinking of listing contests by comment counts, but the information given by the number of comments in an announcement/editorial is somewhat ambiguous.

→ Reply
  • »
    »
    5 years ago, # ^ |
      Vote: I like it +13 Vote: I do not like it

    I mistakenly counted a div.1 + div.2 round / a round with the mirror and the offcial one as multiple rounds. When I fixed it, I forgot to sort it again, and I posted it with the wrong order lol.

    → Reply
»
5 years ago, # |
  Vote: I like it -30 Vote: I do not like it

tourist == real god

→ Reply
  • »
    »
    5 years ago, # ^ |
      Vote: I like it 0 Vote: I do not like it

    looking to the downvotes, it seems is not real, but maybe integer?

    → Reply
»
5 years ago, # |
  Vote: I like it 0 Vote: I do not like it

thank you ouuan you are a good man.

→ Reply