→ About Contest
Andrew Stankevich — Gold and Silver Medalist of ACM-ICPC, associate professor in Saint Petersburg University ITMO, SPb NRU ITMO teams coach, that became ACM-ICPC World Champions for 5 times. His contests have been used in Summer and Winter Petrozavodsk Camps since 2003. The contests are considered to be among the most interesting and well-prepared contests used at this international training camp. Contests materials are distributed under Creative Commons 4.0 Attribution license.
→ Virtual participation
Virtual contest is a way to take part in past contest, as close as possible to participation on time. It is supported only ICPC mode for virtual contests.
If you've seen these problems, a virtual contest is not for you - solve these problems in the archive.
If you just want to solve some problem from a contest, a virtual contest is not for you - solve this problem in the archive.
Never use someone else's code, read the tutorials or communicate with other person during a virtual contest.
→ Practice?
Want to solve the contest problems after the official contest ends? Just register for practice and you will be able to submit solutions.
→ Status filter
→ Contest materials
Contest status
| # | When | Who | Problem | Lang | Verdict | Time | Memory |
|---|---|---|---|---|---|---|---|
| 371341043 | Apr/16/2026 10:32 | chenwz | D - Crazy Nim | C++20 (GCC 13-64) | Wrong answer on test 1 | 62 ms | 0 KB |
| 371340978 | Apr/16/2026 10:31 | chenwz | D - Crazy Nim | C++20 (GCC 13-64) | Wrong answer on test 1 | 0 ms | 0 KB |
| 371319906 | Apr/16/2026 05:09 | chenwz | G - Fun with Squares | C++20 (GCC 13-64) | Accepted | 374 ms | 10700 KB |
| 371319803 | Apr/16/2026 05:08 | chenwz | F - Spam Filter | C++20 (GCC 13-64) | Time limit exceeded on test 1 | 1000 ms | 0 KB |
| 371319288 | Apr/16/2026 04:58 | chenwz | F - Spam Filter | C++20 (GCC 13-64) | Accepted | 92 ms | 0 KB |
| 371268043 | Apr/15/2026 18:01 | chenwz | I - TV Show | C++20 (GCC 13-64) | Accepted | 92 ms | 0 KB |
| 371266061 | Apr/15/2026 17:43 | chenwz | I - TV Show | C++20 (GCC 13-64) | Accepted | 156 ms | 100 KB |
| 371265944 | Apr/15/2026 17:42 | chenwz | C - Important Roads | C++20 (GCC 13-64) | Accepted | 250 ms | 6500 KB |
| 371265626 | Apr/15/2026 17:39 | chenwz | C - Important Roads | C++20 (GCC 13-64) | Compilation error | 0 ms | 0 KB |
| 371259545 | Apr/15/2026 16:49 | chenwz | H - High Speed Trains | PyPy 3-64 | Accepted | 218 ms | 3800 KB |
| 371259148 | Apr/15/2026 16:46 | chenwz | H - High Speed Trains | PyPy 3-64 | Accepted | 250 ms | 2400 KB |
| 371259080 | Apr/15/2026 16:45 | chenwz | H - High Speed Trains | C++20 (GCC 13-64) | Compilation error | 0 ms | 0 KB |
| 371252863 | Apr/15/2026 15:55 | chenwz | E - Numbers | C++20 (GCC 13-64) | Accepted | 92 ms | 0 KB |
| 371228270 | Apr/15/2026 12:11 | chenwz | I - TV Show | C++20 (GCC 13-64) | Accepted | 62 ms | 0 KB |
| 371228062 | Apr/15/2026 12:09 | chenwz | G - Fun with Squares | C++20 (GCC 13-64) | Accepted | 406 ms | 10700 KB |
| 371227970 | Apr/15/2026 12:08 | chenwz | I - TV Show | C++20 (GCC 13-64) | Wrong answer on test 3 | 30 ms | 0 KB |
| 371227945 | Apr/15/2026 12:08 | chenwz | F - Spam Filter | C++20 (GCC 13-64) | Accepted | 124 ms | 0 KB |
| 371227851 | Apr/15/2026 12:07 | chenwz | H - High Speed Trains | C++20 (GCC 13-64) | Accepted | 156 ms | 1300 KB |
| 371227897 | Apr/15/2026 12:08 | chenwz | C - Important Roads | C++20 (GCC 13-64) | Accepted | 250 ms | 7700 KB |
| 371227799 | Apr/15/2026 12:07 | chenwz | E - Numbers | C++20 (GCC 13-64) | Accepted | 92 ms | 0 KB |
| 371221589 | Apr/15/2026 11:08 | chenwz | G - Fun with Squares | C++20 (GCC 13-64) | Accepted | 312 ms | 10800 KB |
| 371221439 | Apr/15/2026 11:06 | chenwz | F - Spam Filter | C++20 (GCC 13-64) | Accepted | 124 ms | 0 KB |
| 371221100 | Apr/15/2026 11:03 | chenwz | I - TV Show | C++20 (GCC 13-64) | Accepted | 92 ms | 0 KB |
| 371221000 | Apr/15/2026 11:02 | chenwz | C - Important Roads | C++20 (GCC 13-64) | Accepted | 374 ms | 3900 KB |
| 371220934 | Apr/15/2026 11:01 | chenwz | H - High Speed Trains | C++20 (GCC 13-64) | Accepted | 124 ms | 35900 KB |
| 371220756 | Apr/15/2026 10:59 | chenwz | E - Numbers | C++20 (GCC 13-64) | Accepted | 124 ms | 0 KB |
| 369438505 | Apr/03/2026 11:42 | qwwqcy | C - Important Roads | C++20 (GCC 13-64) | Accepted | 436 ms | 3900 KB |
| 369438328 | Apr/03/2026 11:40 | qwwqcy | C - Important Roads | C++20 (GCC 13-64) | Accepted | 406 ms | 3900 KB |
| 369438068 | Apr/03/2026 11:37 | qwwqcy | G - Fun with Squares | C++20 (GCC 13-64) | Accepted | 374 ms | 10800 KB |
| 369437948 | Apr/03/2026 11:36 | qwwqcy | G - Fun with Squares | C++20 (GCC 13-64) | Accepted | 342 ms | 10800 KB |
| 369437807 | Apr/03/2026 11:35 | qwwqcy | F - Spam Filter | C++20 (GCC 13-64) | Accepted | 92 ms | 0 KB |
| 369437588 | Apr/03/2026 11:33 | qwwqcy | F - Spam Filter | C++20 (GCC 13-64) | Accepted | 92 ms | 0 KB |
| 369437430 | Apr/03/2026 11:31 | qwwqcy | I - TV Show | C++20 (GCC 13-64) | Accepted | 62 ms | 100 KB |
| 369437301 | Apr/03/2026 11:30 | qwwqcy | I - TV Show | C++20 (GCC 13-64) | Accepted | 92 ms | 0 KB |
| 369437089 | Apr/03/2026 11:28 | qwwqcy | H - High Speed Trains | C++20 (GCC 13-64) | Accepted | 124 ms | 35900 KB |
| 369436892 | Apr/03/2026 11:26 | qwwqcy | H - High Speed Trains | Python 2 | Accepted | 156 ms | 100 KB |
| 369436258 | Apr/03/2026 11:20 | qwwqcy | B - Geometry Problem | Python 2 | Runtime error on test 1 | 92 ms | 0 KB |
| 369436108 | Apr/03/2026 11:18 | qwwqcy | E - Numbers | C++17 (GCC 7-32) | Accepted | 92 ms | 0 KB |
| 369436004 | Apr/03/2026 11:17 | qwwqcy | E - Numbers | C++17 (GCC 7-32) | Accepted | 124 ms | 0 KB |
| 339011389 | Sep/17/2025 04:23 | ezraft | D - Crazy Nim | C++20 (GCC 13-64) | Accepted | 92 ms | 0 KB |
| 339011369 | Sep/17/2025 04:23 | ezraft | D - Crazy Nim | C++20 (GCC 13-64) | Wrong answer on test 1 | 62 ms | 0 KB |
| 339011347 | Sep/17/2025 04:22 | ezraft | D - Crazy Nim | C++20 (GCC 13-64) | Wrong answer on test 1 | 30 ms | 0 KB |
| 339010921 | Sep/17/2025 04:13 | ezraft | F - Spam Filter | C++20 (GCC 13-64) | Accepted | 124 ms | 0 KB |
| 339010903 | Sep/17/2025 04:12 | ezraft | F - Spam Filter | C++20 (GCC 13-64) | Compilation error | 0 ms | 0 KB |
| 339010758 | Sep/17/2025 04:09 | lced quacks: diss_quack, ezraft# | F - Spam Filter | C++20 (GCC 13-64) | Wrong answer on test 11 | 122 ms | 0 KB |
| 339010257 | Sep/17/2025 03:55 | lced quacks: diss_quack, ezraft# | F - Spam Filter | C++20 (GCC 13-64) | Wrong answer on test 9 | 92 ms | 0 KB |
| 339010088 | Sep/17/2025 03:51 | lced quacks: diss_quack, ezraft# | F - Spam Filter | C++20 (GCC 13-64) | Wrong answer on test 11 | 92 ms | 0 KB |
| 339009767 | Sep/17/2025 03:43 | lced quacks: diss_quack, ezraft# | F - Spam Filter | C++17 (GCC 7-32) | Wrong answer on test 7 | 122 ms | 0 KB |
| 339009679 | Sep/17/2025 03:41 | lced quacks: diss_quack, ezraft# | F - Spam Filter | C++17 (GCC 7-32) | Wrong answer on test 7 | 92 ms | 0 KB |
| 339009615 | Sep/17/2025 03:39 | lced quacks: diss_quack, ezraft# | F - Spam Filter | C++17 (GCC 7-32) | Wrong answer on test 7 | 92 ms | 0 KB |
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