Hello Codeforces!
On April 15, 17:35 MSK will be held Educational Codeforces Round 19.
This Educational Round is held as Harbour.Space university initiative. It's the second round supported by Harbour.Space. You can read the details about the cooperation between Harbour.Space and Codeforces in the blog post.
Some educational programs in Harbour.Space are interesting for most Codeforces users. One of them is Data Science Program. Here is few words from Sergey Nikolenko, Harbour.Space lecturer and Senior Researcher, Steklov Institute of Mathematics at St. Petersburg Russia.
The round will be unrated for all users and it will be held with extented ACM ICPC rules. After that you will have one day to hack any solution you want. You will have access to copy any solution and test it locally.
You will be given 6 problems and 2 hours to solve them. We tried to prepare such problems that both novices and experienced coders will find something interesting in this contest.
The round was prepared by Ivan BledDest Androsov, Mikhail MikeMirzayanov Mirzayanov and me.
Wish you enjoy the contest! Good luck!
UPD: Editorial
Congratulations to the winners:
| Rank | Competitor | Problems Solved | Penalty |
|---|---|---|---|
| 1 | Reyna | 6 | 214 |
| 2 | tqyaaaaaaaang | 6 | 230 |
| 3 | nuip | 6 | 303 |
| 4 | W4yneb0t | 6 | 341 |
| 5 | lexuanan | 6 | 457 |
Congratulations to the best hackers:
| Rank | Competitor | Hack Count |
|---|---|---|
| 1 | step_by_step | 40:-7 |
| 2 | halyavin | 44:-17 |
| 3 | STommydx | 20:-5 |
| 4 | yp155136 | 18:-2 |
| 5 | FlierKing | 24:-15 |
234 successful hacks and 308 unsuccessful hacks were made in total!
And finally people who were the first to solve each problem:
| Problem | Competitor | Penalty |
|---|---|---|
| A | Lewin | 0:01 |
| B | 300iq | 0:04 |
| C | fanache99 | 0:09 |
| D | Reyna | 0:21 |
| E | Vladik | 0:08 |
| F | skywalkert | 0:40 |
