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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 |
|---|---|---|---|---|---|---|---|
| 371490914 | Apr/17/2026 14:53 | Chen_ri_kang | E - Points and Lines | C++17 (GCC 7-32) | Accepted | 92 ms | 100 KB |
| 371490829 | Apr/17/2026 14:53 | Chen_ri_kang | E - Points and Lines | C++17 (GCC 7-32) | Accepted | 92 ms | 100 KB |
| 371488891 | Apr/17/2026 14:36 | Chen_ri_kang | E - Points and Lines | C++17 (GCC 7-32) | Wrong answer on test 7 | 62 ms | 3300 KB |
| 371488787 | Apr/17/2026 14:35 | Chen_ri_kang | E - Points and Lines | C++17 (GCC 7-32) | Wrong answer on test 7 | 62 ms | 3300 KB |
| 371488707 | Apr/17/2026 14:34 | Chen_ri_kang | E - Points and Lines | C++17 (GCC 7-32) | Wrong answer on test 7 | 92 ms | 3300 KB |
| 371324469 | Apr/16/2026 06:33 | qwwqcy | G - Inverse Range Minimum Query | C++20 (GCC 13-64) | Accepted | 280 ms | 400 KB |
| 371324367 | Apr/16/2026 06:31 | qwwqcy | J - Wikipidia | C++20 (GCC 13-64) | Accepted | 124 ms | 4000 KB |
| 371324291 | Apr/16/2026 06:30 | qwwqcy | J - Wikipidia | C++20 (GCC 13-64) | Accepted | 92 ms | 3200 KB |
| 371324114 | Apr/16/2026 06:26 | qwwqcy | J - Wikipidia | C++20 (GCC 13-64) | Memory limit exceeded on test 27 | 250 ms | 262100 KB |
| 371323899 | Apr/16/2026 06:23 | qwwqcy | J - Wikipidia | C++20 (GCC 13-64) | Wrong answer on test 1 | 30 ms | 4000 KB |
| 371323871 | Apr/16/2026 06:23 | qwwqcy | H - Road Signs | C++20 (GCC 13-64) | Accepted | 92 ms | 8200 KB |
| 371323793 | Apr/16/2026 06:21 | qwwqcy | H - Road Signs | C++20 (GCC 13-64) | Accepted | 124 ms | 300 KB |
| 371322132 | Apr/16/2026 05:53 | qwwqcy | H - Road Signs | C++20 (GCC 13-64) | Wrong answer on test 1 | 62 ms | 400 KB |
| 371322082 | Apr/16/2026 05:52 | qwwqcy | J - Wikipidia | C++20 (GCC 13-64) | Wrong answer on test 1 | 62 ms | 4000 KB |
| 371321999 | Apr/16/2026 05:50 | qwwqcy | J - Wikipidia | C++20 (GCC 13-64) | Wrong answer on test 1 | 30 ms | 4000 KB |
| 371321824 | Apr/16/2026 05:47 | qwwqcy | F - Reversing Prefixes | C++20 (GCC 13-64) | Accepted | 186 ms | 1500 KB |
| 371321762 | Apr/16/2026 05:46 | qwwqcy | F - Reversing Prefixes | C++20 (GCC 13-64) | Accepted | 218 ms | 1500 KB |
| 371321718 | Apr/16/2026 05:45 | qwwqcy | E - Points and Lines | C++20 (GCC 13-64) | Accepted | 92 ms | 400 KB |
| 371321695 | Apr/16/2026 05:45 | qwwqcy | E - Points and Lines | C++20 (GCC 13-64) | Accepted | 92 ms | 400 KB |
| 371321624 | Apr/16/2026 05:43 | qwwqcy | E - Points and Lines | C++20 (GCC 13-64) | Accepted | 92 ms | 400 KB |
| 371321543 | Apr/16/2026 05:42 | qwwqcy | D - Avoiding Partitions | C++20 (GCC 13-64) | Accepted | 92 ms | 4900 KB |
| 371321450 | Apr/16/2026 05:41 | qwwqcy | D - Avoiding Partitions | Java 21 | Accepted | 530 ms | 1300 KB |
| 371321312 | Apr/16/2026 05:38 | qwwqcy | B - Minimal Matrix | C++20 (GCC 13-64) | Accepted | 374 ms | 100 KB |
| 371321232 | Apr/16/2026 05:37 | qwwqcy | B - Minimal Matrix | C++20 (GCC 13-64) | Accepted | 2874 ms | 16500 KB |
| 371321155 | Apr/16/2026 05:35 | qwwqcy | A - Graph Theory | C++20 (GCC 13-64) | Accepted | 62 ms | 0 KB |
| 371321102 | Apr/16/2026 05:34 | qwwqcy | A - Graph Theory | C++20 (GCC 13-64) | Accepted | 92 ms | 100 KB |
| 362207121 | Feb/10/2026 06:34 | Antares_qwq | K - XOR | C++20 (GCC 13-64) | Accepted | 62 ms | 200 KB |
| 362206857 | Feb/10/2026 06:30 | Antares_qwq | K - XOR | C++20 (GCC 13-64) | Wrong answer on test 8 | 62 ms | 200 KB |
| 357814529 | Jan/14/2026 13:40 | SeeItAgain | K - XOR | C++20 (GCC 13-64) | Accepted | 62 ms | 0 KB |
| 357797099 | Jan/14/2026 10:51 | SeeItAgain | K - XOR | C++20 (GCC 13-64) | Time limit exceeded on test 10 | 2000 ms | 22700 KB |
| 357796811 | Jan/14/2026 10:48 | SeeItAgain | K - XOR | C++20 (GCC 13-64) | Time limit exceeded on test 10 | 2000 ms | 15700 KB |
| 357796675 | Jan/14/2026 10:47 | SeeItAgain | K - XOR | C++20 (GCC 13-64) | Wrong answer on test 1 | 30 ms | 0 KB |
| 357796309 | Jan/14/2026 10:43 | SeeItAgain | K - XOR | C++20 (GCC 13-64) | Wrong answer on test 1 | 30 ms | 0 KB |
| 350420747 | Nov/24/2025 02:32 | Zy.Chen | K - XOR | C++20 (GCC 13-64) | Accepted | 154 ms | 100 KB |
| 350420400 | Nov/24/2025 02:20 | Zy.Chen | K - XOR | C++20 (GCC 13-64) | Wrong answer on test 8 | 92 ms | 100 KB |
| 350420381 | Nov/24/2025 02:20 | Zy.Chen | K - XOR | C++20 (GCC 13-64) | Wrong answer on test 8 | 92 ms | 100 KB |
| 350343028 | Nov/23/2025 14:24 | Zy.Chen | K - XOR | C++20 (GCC 13-64) | Wrong answer on test 16 | 184 ms | 100 KB |
| 350335463 | Nov/23/2025 13:59 | Zy.Chen | K - XOR | C++20 (GCC 13-64) | Wrong answer on test 6 | 124 ms | 100 KB |
| 350334995 | Nov/23/2025 13:57 | Zy.Chen | K - XOR | C++20 (GCC 13-64) | Wrong answer on test 1 | 30 ms | 0 KB |
| 350290690 | Nov/23/2025 11:31 | Zy.Chen | G - Inverse Range Minimum Query | C++20 (GCC 13-64) | Accepted | 218 ms | 2100 KB |
| 350289122 | Nov/23/2025 11:15 | bgsdf | K - XOR | C++20 (GCC 13-64) | Wrong answer on test 1 | 92 ms | 0 KB |
| 350288791 | Nov/23/2025 11:12 | Zy.Chen | G - Inverse Range Minimum Query | C++20 (GCC 13-64) | Wrong answer on test 1 | 62 ms | 2100 KB |
| 350270095 | Nov/23/2025 06:44 | liuzeyu666 | G - Inverse Range Minimum Query | C++20 (GCC 13-64) | Accepted | 468 ms | 12100 KB |
| 350270054 | Nov/23/2025 06:43 | liuzeyu666 | G - Inverse Range Minimum Query | C++20 (GCC 13-64) | Wrong answer on test 1 | 30 ms | 12100 KB |
| 350268617 | Nov/23/2025 06:15 | liuzeyu666 | G - Inverse Range Minimum Query | C++20 (GCC 13-64) | Wrong answer on test 9 | 92 ms | 2000 KB |
| 350268145 | Nov/23/2025 06:05 | zzl12345 | K - XOR | C++20 (GCC 13-64) | Wrong answer on test 1 | 60 ms | 23500 KB |
| 350267801 | Nov/23/2025 05:58 | sry417 | G - Inverse Range Minimum Query | C++17 (GCC 7-32) | Accepted | 404 ms | 14900 KB |
| 350264518 | Nov/23/2025 04:26 | qwwqcy | G - Inverse Range Minimum Query | C++17 (GCC 7-32) | Wrong answer on test 11 | 124 ms | 12500 KB |
| 350264448 | Nov/23/2025 04:24 | qwwqcy | G - Inverse Range Minimum Query | C++17 (GCC 7-32) | Accepted | 404 ms | 14900 KB |
| 350264423 | Nov/23/2025 04:24 | qwwqcy | G - Inverse Range Minimum Query | C++17 (GCC 7-32) | Memory limit exceeded on test 11 | 436 ms | 262100 KB |
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