On Nov/12/2018 17:35 (Moscow time) Educational Codeforces Round 54 (Rated for Div. 2) will start.
Series of Educational Rounds continue being held as Harbour.Space University initiative! You can read the details about the cooperation between Harbour.Space University and Codeforces in the blog post.
This round will be rated for the participants with rating lower than 2100. It will be held on extented ACM ICPC rules. The penalty for each incorrect submission until the submission with a full solution is 10 minutes. After the end of the contest you will have 12 hours to hack any solution you want. You will have access to copy any solution and test it locally.
You will be given 7 problems and 2 hours to solve them.
The problems were invented and prepared by Roman Roms Glazov, Adilbek adedalic Dalabaev, Vladimir vovuh Petrov, Ivan BledDest Androsov and me.
Good luck to all participants!
UPD: There certainly will be a discussion of the problems on the local Discord server shortly after the contest ends. I might join it as well)
Congratulations to the winners:
| Rank | Competitor | Problems Solved | Penalty |
|---|---|---|---|
| 1 | Anadi | 7 | 266 |
| 2 | HIR180 | 6 | 129 |
| 3 | mrscherry | 6 | 152 |
| 4 | Vergara | 6 | 158 |
| 5 | Jeel_Vaishnav | 6 | 185 |
Congratulations to the best hackers:
| Rank | Competitor | Hack Count |
|---|---|---|
| 1 | teapotd | 100:-4 |
| 2 | vlad.raw | 52:-5 |
| 3 | MarcosK | 32 |
| 4 | tataky | 28:-5 |
| 5 | knotValid | 23 |
And finally people who were the first to solve each problem:
| Problem | Competitor | Penalty |
|---|---|---|
| A | Dalgerok | 0:01 |
| B | Nazikk | 0:03 |
| C | neal | 0:03 |
| D | tamref | 0:14 |
| E | shadowatyy | 0:13 |
| F | killer_god | 0:34 |
| G | lxrvelory | 1:03 |
UPD2: There was an error in problem D which caused some incorrect solutions to get accepted. We will investigate the number of users who were affected by this issue and decide whether the round is rated.
UPD3: We discussed the issue and came up with the following decision:
Those who got accepted earlier and get WA now won't be affected by rating changes. For everyone else (for those who got correct verdict) the contest will be rated.
UPD4: Editorial is out
