Hello Codeforces!
On May/01/2019 17:35 (Moscow time) Educational Codeforces Round 64 (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 extended 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, Maksim Neon Mescheryakov and me. Also huge thanks to Mike MikeMirzayanov Mirzayanov for great systems Polygon and Codeforces.
Good luck to all participants!
Our friends at Harbour.Space also have a message for you:
Hi Codeforces!
Harbour.Space University, the International Tournament of Young Mathematicians (ITYM) and St. Paul International School Barcelona have designed a special online test for high school students, to take place on May 5th at 15.00 CET Time.
You can take part in the online test if all the following conditions are met:
- Between the ages of 12 to 18,
- Have not graduated from high school
- Eligible to take part in IOI/IMO 2020.
After the test, all participants will get a 20% discount link to attend Tech Scouts, the two-week summer camp we run from the 8th-19th of July in one of Barcelona's leading international schools, St.Paul’s, and the most successful performers will be interviewed and awarded a full tuition waiver to attend the advanced level of the Advanced Technical Track of Tech Scouts.
In order to register for the contest, please fill out this form before May 3rd, 2019.
We would love to see you guys at our camp this year — if you’re interested in joining, or if you just want to know more, just head over to the Tech Scouts website.
UPD: There are some minor issues with one of the problems, we'll use one of lesser-known problems by Maxim Babenko.
Congratulations to the winners:
Rank | Competitor | Problems Solved | Penalty |
---|---|---|---|
1 | step_by_step | 7 | 491 |
2 | ideology | 6 | 270 |
3 | receed | 6 | 280 |
4 | I_love_Tanya_Romanova | 6 | 286 |
5 | dreamoon_love_AA | 6 | 299 |
Congratulations to the best hackers:
Rank | Competitor | Hack Count |
---|---|---|
1 | halyavin | 64:-3 |
2 | achaitanya.sai | 39:-23 |
3 | wzw19991105 | 18:-1 |
4 | LiM_256 | 14:-1 |
5 | patriot1488 | 2 |
And finally people who were the first to solve each problem:
Problem | Competitor | Penalty |
---|---|---|
A | halyavin | 0:06 |
B | nuip | 0:07 |
C | quailty | 0:04 |
D | waynetuinfor | 0:11 |
E | step_by_step | 0:05 |
F | step_by_step | 0:15 |
G | step_by_step | 1:22 |
UPD2: The editorial is out.