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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 |
|---|---|---|---|---|---|---|---|
| 371786374 | Apr/19/2026 17:52 | Chen_ri_kang | A - Non Absorbing DFA | C++17 (GCC 7-32) | Accepted | 124 ms | 2800 KB |
| 369420678 | Apr/03/2026 08:38 | aaa_Pigeon2 | E - Quantization Problem | C++20 (GCC 13-64) | Accepted | 218 ms | 2400 KB |
| 369420657 | Apr/03/2026 08:38 | aaa_Pigeon2 | E - Quantization Problem | C++20 (GCC 13-64) | Wrong answer on test 1 | 62 ms | 2300 KB |
| 369420465 | Apr/03/2026 08:36 | aaa_Pigeon2 | E - Quantization Problem | C++20 (GCC 13-64) | Wrong answer on test 1 | 62 ms | 2300 KB |
| 368392590 | Mar/27/2026 17:21 | Antares_qwq | G - Robbers | C++20 (GCC 13-64) | Time limit exceeded on test 11 | 500 ms | 39800 KB |
| 368392160 | Mar/27/2026 17:17 | Antares_qwq | G - Robbers | C++20 (GCC 13-64) | Memory limit exceeded on test 1 | 0 ms | 65500 KB |
| 365815733 | Mar/08/2026 10:24 | qwwqcy | G - Robbers | C++20 (GCC 13-64) | Accepted | 92 ms | 0 KB |
| 365798874 | Mar/08/2026 07:01 | qwwqcy | G - Robbers | C++20 (GCC 13-64) | Accepted | 62 ms | 100 KB |
| 365798841 | Mar/08/2026 07:00 | qwwqcy | G - Robbers | C++20 (GCC 13-64) | Runtime error on test 1 | 30 ms | 0 KB |
| 365797910 | Mar/08/2026 06:43 | qwwqcy | E - Quantization Problem | C++20 (GCC 13-64) | Accepted | 218 ms | 100 KB |
| 365795075 | Mar/08/2026 05:53 | qwwqcy | C - Hyperhuffman | C++20 (GCC 13-64) | Accepted | 342 ms | 3400 KB |
| 365729413 | Mar/07/2026 16:43 | chenwz | A - Non Absorbing DFA | C++20 (GCC 13-64) | Compilation error | 0 ms | 0 KB |
| 365728907 | Mar/07/2026 16:38 | chenwz | A - Non Absorbing DFA | C++20 (GCC 13-64) | Accepted | 280 ms | 49400 KB |
| 365727676 | Mar/07/2026 16:28 | chenwz | A - Non Absorbing DFA | C++20 (GCC 13-64) | Wrong answer on test 1 | 0 ms | 100 KB |
| 365324294 | Mar/04/2026 12:24 | qwwqcy | B - The Towers of Hanoi Revisited | C++20 (GCC 13-64) | Accepted | 124 ms | 100 KB |
| 365311097 | Mar/04/2026 10:18 | qwwqcy | A - Non Absorbing DFA | C++20 (GCC 13-64) | Wrong answer on test 1 | 30 ms | 0 KB |
| 365288801 | Mar/04/2026 05:03 | qwwqcy | A - Non Absorbing DFA | C++17 (GCC 7-32) | Accepted | 500 ms | 21500 KB |
| 365288470 | Mar/04/2026 04:56 | qwwqcy | A - Non Absorbing DFA | C++17 (GCC 7-32) | Wrong answer on test 1 | 92 ms | 0 KB |
| 365222330 | Mar/03/2026 15:49 | chenwz | G - Robbers | C++20 (GCC 13-64) | Accepted | 62 ms | 100 KB |
| 365221957 | Mar/03/2026 15:47 | chenwz | G - Robbers | C++20 (GCC 13-64) | Memory limit exceeded on test 1 | 156 ms | 65500 KB |
| 365220656 | Mar/03/2026 15:37 | chenwz | G - Robbers | C++20 (GCC 13-64) | Accepted | 92 ms | 0 KB |
| 363971910 | Feb/23/2026 03:25 | chenwz | F - Roads | C++20 (GCC 13-64) | Accepted | 342 ms | 35600 KB |
| 363948990 | Feb/22/2026 06:44 | chenwz | E - Quantization Problem | C++20 (GCC 13-64) | Accepted | 218 ms | 100 KB |
| 363948908 | Feb/22/2026 06:42 | chenwz | E - Quantization Problem | C++20 (GCC 13-64) | Accepted | 218 ms | 0 KB |
| 363948875 | Feb/22/2026 06:41 | chenwz | E - Quantization Problem | C++20 (GCC 13-64) | Compilation error | 0 ms | 0 KB |
| 363948732 | Feb/22/2026 06:37 | chenwz | E - Quantization Problem | C++20 (GCC 13-64) | Accepted | 124 ms | 1800 KB |
| 363948265 | Feb/22/2026 06:28 | chenwz | E - Quantization Problem | C++20 (GCC 13-64) | Accepted | 124 ms | 0 KB |
| 363945301 | Feb/22/2026 05:14 | chenwz | C - Hyperhuffman | C++20 (GCC 13-64) | Accepted | 250 ms | 7400 KB |
| 363711619 | Feb/20/2026 17:59 | chenwz | B - The Towers of Hanoi Revisited | C++20 (GCC 13-64) | Wrong answer on test 1 | 30 ms | 0 KB |
| 363710442 | Feb/20/2026 17:50 | chenwz | B - The Towers of Hanoi Revisited | C++20 (GCC 13-64) | Accepted | 124 ms | 100 KB |
| 363619520 | Feb/19/2026 17:53 | chenwz | A - Non Absorbing DFA | C++20 (GCC 13-64) | Accepted | 500 ms | 22400 KB |
| 357896741 | Jan/15/2026 05:29 | ezraft | F - Roads | C++20 (GCC 13-64) | Accepted | 62 ms | 0 KB |
| 355644657 | Dec/29/2025 06:36 | chengyifan02 | A - Non Absorbing DFA | C++23 (GCC 14-64, msys2) | Accepted | 312 ms | 5400 KB |
| 355644606 | Dec/29/2025 06:35 | chengyifan02 | A - Non Absorbing DFA | C++23 (GCC 14-64, msys2) | Wrong answer on test 1 | 62 ms | 2500 KB |
| 355644531 | Dec/29/2025 06:34 | chengyifan02 | A - Non Absorbing DFA | C++23 (GCC 14-64, msys2) | Wrong answer on test 12 | 62 ms | 600 KB |
| 355644485 | Dec/29/2025 06:33 | chengyifan02 | A - Non Absorbing DFA | C++23 (GCC 14-64, msys2) | Runtime error on test 1 | 968 ms | 500 KB |
| 355643075 | Dec/29/2025 06:08 | chengyifan02 | A - Non Absorbing DFA | C++23 (GCC 14-64, msys2) | Wrong answer on test 2 | 62 ms | 500 KB |
| 355642966 | Dec/29/2025 06:06 | chengyifan02 | A - Non Absorbing DFA | C++23 (GCC 14-64, msys2) | Time limit exceeded on test 1 | 1000 ms | 500 KB |
| 353917149 | Dec/18/2025 05:25 | Replacement Hunter: 0mar, lce4113, ezraft# | A - Non Absorbing DFA | PyPy 3-64 | Accepted | 562 ms | 10000 KB |
| 353916968 | Dec/18/2025 05:20 | Replacement Hunter: 0mar, lce4113, ezraft# | A - Non Absorbing DFA | PyPy 3-64 | Wrong answer on test 2 | 156 ms | 0 KB |
| 353916833 | Dec/18/2025 05:17 | Replacement Hunter: 0mar, lce4113, ezraft# | A - Non Absorbing DFA | PyPy 3-64 | Wrong answer on test 2 | 92 ms | 0 KB |
| 353916673 | Dec/18/2025 05:12 | Replacement Hunter: 0mar, lce4113, ezraft# | A - Non Absorbing DFA | PyPy 3-64 | Runtime error on test 2 | 156 ms | 2700 KB |
| 353916600 | Dec/18/2025 05:10 | Replacement Hunter: 0mar, lce4113, ezraft# | A - Non Absorbing DFA | PyPy 3-64 | Runtime error on test 2 | 124 ms | 2700 KB |
| 353916587 | Dec/18/2025 05:10 | Replacement Hunter: 0mar, lce4113, ezraft# | A - Non Absorbing DFA | PyPy 3-64 | Wrong answer on test 2 | 92 ms | 0 KB |
| 353916543 | Dec/18/2025 05:08 | Replacement Hunter: 0mar, lce4113, ezraft# | A - Non Absorbing DFA | PyPy 3-64 | Runtime error on test 2 | 92 ms | 2700 KB |
| 353916473 | Dec/18/2025 05:06 | Replacement Hunter: 0mar, lce4113, ezraft# | A - Non Absorbing DFA | PyPy 3-64 | Wrong answer on test 2 | 62 ms | 0 KB |
| 353916421 | Dec/18/2025 05:05 | Replacement Hunter: 0mar, lce4113, ezraft# | A - Non Absorbing DFA | PyPy 3-64 | Wrong answer on test 1 | 62 ms | 0 KB |
| 353916397 | Dec/18/2025 05:04 | Replacement Hunter: 0mar, lce4113, ezraft# | A - Non Absorbing DFA | Python 3 | Wrong answer on test 1 | 30 ms | 400 KB |
| 353916335 | Dec/18/2025 05:02 | Replacement Hunter: 0mar, lce4113, ezraft# | A - Non Absorbing DFA | Python 3 | Runtime error on test 2 | 92 ms | 2300 KB |
| 353916321 | Dec/18/2025 05:02 | Replacement Hunter: 0mar, lce4113, ezraft# | A - Non Absorbing DFA | Python 3 | Runtime error on test 2 | 92 ms | 2400 KB |
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