→ 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 |
|---|---|---|---|---|---|---|---|
| 372207548 | Apr/23/2026 10:03 | qwwqcy | J - RSA | C++20 (GCC 13-64) | Accepted | 46 ms | 1100 KB |
| 371934551 | Apr/21/2026 07:31 | ukbwyx | H - Robots' Art | C++20 (GCC 13-64) | Accepted | 1328 ms | 294800 KB |
| 371930780 | Apr/21/2026 06:00 | GraphMatching | H - Robots' Art | C++23 (GCC 14-64, msys2) | Accepted | 140 ms | 391800 KB |
| 371349247 | Apr/16/2026 12:03 | qwwqcy | J - RSA | Java 21 | Wrong answer on test 6 | 218 ms | 900 KB |
| 371349014 | Apr/16/2026 12:00 | qwwqcy | J - RSA | C++20 (GCC 13-64) | Wrong answer on test 2 | 46 ms | 0 KB |
| 371349074 | Apr/16/2026 12:01 | qwwqcy | J - RSA | Java 21 | Wrong answer on test 6 | 218 ms | 1000 KB |
| 371348949 | Apr/16/2026 12:00 | qwwqcy | J - RSA | C++20 (GCC 13-64) | Compilation error | 0 ms | 0 KB |
| 371348883 | Apr/16/2026 11:59 | qwwqcy | J - RSA | C++20 (GCC 13-64) | Wrong answer on test 2 | 15 ms | 0 KB |
| 371348628 | Apr/16/2026 11:56 | qwwqcy | J - RSA | C++20 (GCC 13-64) | Memory limit exceeded on test 1 | 468 ms | 262100 KB |
| 371348361 | Apr/16/2026 11:53 | qwwqcy | H - Robots' Art | C++20 (GCC 13-64) | Accepted | 62 ms | 244900 KB |
| 371348152 | Apr/16/2026 11:50 | qwwqcy | H - Robots' Art | C++20 (GCC 13-64) | Accepted | 281 ms | 221100 KB |
| 371348057 | Apr/16/2026 11:49 | qwwqcy | G - Permutations | C++20 (GCC 13-64) | Accepted | 46 ms | 100 KB |
| 371347899 | Apr/16/2026 11:47 | qwwqcy | G - Permutations | C++20 (GCC 13-64) | Runtime error on test 1 | 15 ms | 100 KB |
| 371345933 | Apr/16/2026 11:23 | qwwqcy | G - Permutations | Python 3 | Accepted | 46 ms | 100 KB |
| 371345876 | Apr/16/2026 11:22 | qwwqcy | F - Graph Factorization | C++20 (GCC 13-64) | Accepted | 46 ms | 100 KB |
| 371345744 | Apr/16/2026 11:20 | qwwqcy | F - Graph Factorization | C++20 (GCC 13-64) | Accepted | 31 ms | 0 KB |
| 371345666 | Apr/16/2026 11:19 | qwwqcy | E - Strange Digits | C++20 (GCC 13-64) | Accepted | 62 ms | 200 KB |
| 371345505 | Apr/16/2026 11:17 | qwwqcy | E - Strange Digits | C++20 (GCC 13-64) | Accepted | 46 ms | 200 KB |
| 371345414 | Apr/16/2026 11:16 | qwwqcy | C - Spending Budget | C++20 (GCC 13-64) | Accepted | 46 ms | 100 KB |
| 371345147 | Apr/16/2026 11:13 | qwwqcy | C - Spending Budget | C++20 (GCC 13-64) | Accepted | 46 ms | 0 KB |
| 371344907 | Apr/16/2026 11:10 | qwwqcy | B - Blackjack | C++20 (GCC 13-64) | Accepted | 312 ms | 32700 KB |
| 371344778 | Apr/16/2026 11:09 | qwwqcy | A - 12:30PM | C++20 (GCC 13-64) | Accepted | 93 ms | 13800 KB |
| 371342040 | Apr/16/2026 10:42 | qwwqcy | A - 12:30PM | C++20 (GCC 13-64) | Accepted | 109 ms | 13800 KB |
| 371342019 | Apr/16/2026 10:42 | qwwqcy | B - Blackjack | C++20 (GCC 13-64) | Accepted | 281 ms | 32800 KB |
| 371341800 | Apr/16/2026 10:40 | qwwqcy | A - 12:30PM | C++20 (GCC 13-64) | Compilation error | 0 ms | 0 KB |
| 353819722 | Dec/17/2025 13:01 | Martin20141001 | A - 12:30PM | C++17 (GCC 7-32) | Accepted | 140 ms | 4900 KB |
| 353819087 | Dec/17/2025 12:58 | Martin20141001 | A - 12:30PM | C++17 (GCC 7-32) | Wrong answer on test 1 | 15 ms | 0 KB |
| 353818653 | Dec/17/2025 12:55 | Martin20141001 | A - 12:30PM | C++17 (GCC 7-32) | Wrong answer on test 1 | 31 ms | 0 KB |
| 350979918 | Nov/28/2025 15:43 | hobbycp | I - Roof Skeleton | C++23 (GCC 14-64, msys2) | Accepted | 77 ms | 100 KB |
| 350976716 | Nov/28/2025 15:16 | hobbycp | I - Roof Skeleton | C++23 (GCC 14-64, msys2) | Runtime error on test 2 | 46 ms | 0 KB |
| 350814082 | Nov/27/2025 09:32 | hobbycp | I - Roof Skeleton | C++17 (GCC 7-32) | Wrong answer on test 1 | 31 ms | 0 KB |
| 350809524 | Nov/27/2025 08:48 | hobbycp | I - Roof Skeleton | C++17 (GCC 7-32) | Wrong answer on test 2 | 46 ms | 0 KB |
| 350737466 | Nov/26/2025 16:28 | hobbycp | I - Roof Skeleton | C++17 (GCC 7-32) | Compilation error | 0 ms | 0 KB |
| 350735303 | Nov/26/2025 16:08 | hobbycp | I - Roof Skeleton | C++17 (GCC 7-32) | Wrong answer on test 2 | 46 ms | 0 KB |
| 350687485 | Nov/26/2025 08:24 | hobbycp | I - Roof Skeleton | C++17 (GCC 7-32) | Wrong answer on test 2 | 46 ms | 0 KB |
| 350687389 | Nov/26/2025 08:22 | hobbycp | I - Roof Skeleton | C++17 (GCC 7-32) | Wrong answer on test 2 | 46 ms | 0 KB |
| 350569123 | Nov/25/2025 09:41 | hobbycp | H - Robots' Art | C++17 (GCC 7-32) | Wrong answer on test 1 | 46 ms | 0 KB |
| 350569007 | Nov/25/2025 09:39 | hobbycp | F - Graph Factorization | C++17 (GCC 7-32) | Accepted | 61 ms | 0 KB |
| 350568875 | Nov/25/2025 09:38 | hobbycp | G - Permutations | PyPy 3-64 | Accepted | 93 ms | 1500 KB |
| 350565688 | Nov/25/2025 09:00 | hobbycp | E - Strange Digits | C++17 (GCC 7-32) | Wrong answer on test 1 | 30 ms | 0 KB |
| 350565611 | Nov/25/2025 08:59 | hobbycp | I - Roof Skeleton | C++17 (GCC 7-32) | Wrong answer on test 1 | 15 ms | 0 KB |
| 350565488 | Nov/25/2025 08:58 | hobbycp | J - RSA | PyPy 3-64 | Accepted | 109 ms | 100 KB |
| 350565432 | Nov/25/2025 08:57 | hobbycp | J - RSA | PyPy 3-64 | Runtime error on test 1 | 124 ms | 2800 KB |
| 350565233 | Nov/25/2025 08:54 | hobbycp | B - Blackjack | C++17 (GCC 7-32) | Accepted | 155 ms | 12900 KB |
| 350565160 | Nov/25/2025 08:53 | hobbycp | C - Spending Budget | C++17 (GCC 7-32) | Wrong answer on test 8 | 78 ms | 0 KB |
| 350565098 | Nov/25/2025 08:52 | hobbycp | A - 12:30PM | C++17 (GCC 7-32) | Runtime error on test 1 | 30 ms | 0 KB |
| 350474567 | Nov/24/2025 14:45 | hobbycp | D - Circuit Design | C++17 (GCC 7-32) | Wrong answer on test 1 | 46 ms | 0 KB |
| 346835049 | Oct/31/2025 18:34 | Gaozihao071216 | A - 12:30PM | C++17 (GCC 7-32) | Wrong answer on test 1 | 30 ms | 0 KB |
| 346834761 | Oct/31/2025 18:32 | Gaozihao071216 | A - 12:30PM | C++17 (GCC 7-32) | Wrong answer on test 1 | 46 ms | 0 KB |
| 333883317 | Aug/14/2025 09:32 | SoiMae | G - Permutations | C++23 (GCC 14-64, msys2) | Accepted | 77 ms | 200 KB |
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