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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 |
|---|---|---|---|---|---|---|---|
| 395346603 | Oct/20/2026 16:21 | cjl001 | I - Two Cylinders | C++23 (GCC 14-64, msys2) | Accepted | 92 ms | 0 KB |
| 395344140 | Oct/20/2026 16:01 | cjl001 | I - Two Cylinders | C++23 (GCC 14-64, msys2) | Accepted | 92 ms | 0 KB |
| 388742059 | Aug/29/2026 10:06 | Sophis | I - Two Cylinders | C++17 (GCC 7-32) | Accepted | 62 ms | 100 KB |
| 388684654 | Aug/28/2026 17:05 | Sophis | H - Royal Federation | C++17 (GCC 7-32) | Accepted | 124 ms | 100 KB |
| 388684502 | Aug/28/2026 17:04 | Sophis | H - Royal Federation | C++17 (GCC 7-32) | Wrong answer on test 4 | 62 ms | 100 KB |
| 388684431 | Aug/28/2026 17:03 | Sophis | H - Royal Federation | C++17 (GCC 7-32) | Wrong answer on test 1 | 30 ms | 0 KB |
| 388671699 | Aug/28/2026 14:40 | Sophis | G - PL/Cool | C++17 (GCC 7-32) | Accepted | 124 ms | 100 KB |
| 388671490 | Aug/28/2026 14:38 | Sophis | G - PL/Cool | C++17 (GCC 7-32) | Accepted | 186 ms | 0 KB |
| 388671241 | Aug/28/2026 14:35 | Sophis | G - PL/Cool | C++17 (GCC 7-32) | Time limit exceeded on test 12 | 2000 ms | 100 KB |
| 388670548 | Aug/28/2026 14:27 | Sophis | G - PL/Cool | C++17 (GCC 7-32) | Runtime error on test 1 | 0 ms | 0 KB |
| 388646497 | Aug/28/2026 09:57 | Sophis | F - Weird Dissimilarity | C++17 (GCC 7-32) | Accepted | 218 ms | 59500 KB |
| 388600660 | Aug/27/2026 20:33 | Sophis | E - Strong Defence | C++17 (GCC 7-32) | Accepted | 62 ms | 0 KB |
| 388600217 | Aug/27/2026 20:29 | Sophis | E - Strong Defence | C++17 (GCC 7-32) | Wrong answer on test 1 | 30 ms | 0 KB |
| 388596556 | Aug/27/2026 19:55 | Sophis | D - Data Transmission | C++17 (GCC 7-32) | Time limit exceeded on test 17 | 2000 ms | 14900 KB |
| 388596385 | Aug/27/2026 19:53 | Sophis | D - Data Transmission | C++17 (GCC 7-32) | Time limit exceeded on test 17 | 2000 ms | 8300 KB |
| 388594818 | Aug/27/2026 19:38 | Sophis | D - Data Transmission | C++17 (GCC 7-32) | Time limit exceeded on test 17 | 2000 ms | 5900 KB |
| 388594441 | Aug/27/2026 19:34 | Sophis | D - Data Transmission | C++17 (GCC 7-32) | Time limit exceeded on test 17 | 2000 ms | 5900 KB |
| 388591481 | Aug/27/2026 19:05 | Sophis | C - Strange Counter | C++17 (GCC 7-32) | Wrong answer on test 3 | 62 ms | 0 KB |
| 388579599 | Aug/27/2026 17:08 | Sophis | C - Strange Counter | C++17 (GCC 7-32) | Wrong answer on test 1 | 30 ms | 0 KB |
| 388578973 | Aug/27/2026 17:02 | Sophis | C - Strange Counter | C++17 (GCC 7-32) | Wrong answer on test 1 | 62 ms | 0 KB |
| 388576966 | Aug/27/2026 16:43 | Sophis | B - Beloved Sons | C++17 (GCC 7-32) | Accepted | 406 ms | 100 KB |
| 388492838 | Aug/26/2026 20:07 | Sophis | A - Areas | C++17 (GCC 7-32) | Accepted | 936 ms | 100 KB |
| 388492775 | Aug/26/2026 20:07 | Sophis | A - Areas | PyPy 3-64 | Compilation error | 0 ms | 0 KB |
| 388431085 | Aug/26/2026 10:32 | XIAOWANGCHAI | E - Strong Defence | C++20 (GCC 13-64) | Time limit exceeded on test 1 | 1000 ms | 1400 KB |
| 388431068 | Aug/26/2026 10:32 | XIAOWANGCHAI | E - Strong Defence | C++20 (GCC 13-64) | Time limit exceeded on test 1 | 1000 ms | 1300 KB |
| 387570270 | Aug/18/2026 17:01 | Hangyu2011 | H - Royal Federation | C++17 (GCC 7-32) | Accepted | 124 ms | 35300 KB |
| 387565093 | Aug/18/2026 16:24 | Zhuan_ | H - Royal Federation | C++23 (GCC 14-64, msys2) | Accepted | 92 ms | 3600 KB |
| 387564859 | Aug/18/2026 16:22 | Zhuan_ | H - Royal Federation | C++23 (GCC 14-64, msys2) | Wrong answer on test 1 | 62 ms | 3500 KB |
| 387564599 | Aug/18/2026 16:20 | Zhuan_ | H - Royal Federation | C++23 (GCC 14-64, msys2) | Wrong answer on test 1 | 62 ms | 3500 KB |
| 387526481 | Aug/18/2026 10:31 | Hangyu2011 | I - Two Cylinders | C++17 (GCC 7-32) | Accepted | 62 ms | 100 KB |
| 387526382 | Aug/18/2026 10:31 | Hangyu2011 | I - Two Cylinders | C++17 (GCC 7-32) | Accepted | 62 ms | 0 KB |
| 387526225 | Aug/18/2026 10:29 | Hangyu2011 | I - Two Cylinders | C++17 (GCC 7-32) | Wrong answer on test 1 | 92 ms | 100 KB |
| 387525974 | Aug/18/2026 10:27 | Hangyu2011 | I - Two Cylinders | C++17 (GCC 7-32) | Wrong answer on test 1 | 30 ms | 0 KB |
| 386429087 | Aug/10/2026 05:41 | Luuuuk | C - Strange Counter | C++17 (GCC 7-32) | Wrong answer on test 3 | 30 ms | 0 KB |
| 386429049 | Aug/10/2026 05:40 | Luuuuk | C - Strange Counter | C++17 (GCC 7-32) | Wrong answer on test 1 | 30 ms | 0 KB |
| 386427651 | Aug/10/2026 05:14 | luosiyu | C - Strange Counter | C++23 (GCC 14-64, msys2) | Wrong answer on test 2 | 30 ms | 100 KB |
| 386427611 | Aug/10/2026 05:13 | luosiyu | E - Strong Defence | C++23 (GCC 14-64, msys2) | Wrong answer on test 1 | 30 ms | 0 KB |
| 379989610 | Jun/24/2026 10:54 | lkotyaral | H - Royal Federation | C++17 (GCC 7-32) | Accepted | 124 ms | 0 KB |
| 379989536 | Jun/24/2026 10:54 | lkotyaral | H - Royal Federation | C++17 (GCC 7-32) | Wrong answer on test 1 | 30 ms | 0 KB |
| 379911279 | Jun/23/2026 16:19 | lkotyaral | F - Weird Dissimilarity | C++17 (GCC 7-32) | Accepted | 250 ms | 64100 KB |
| 379904903 | Jun/23/2026 15:16 | lkotyaral | B - Beloved Sons | C++17 (GCC 7-32) | Accepted | 280 ms | 0 KB |
| 373227975 | May/01/2026 15:39 | Gryllshsy | H - Royal Federation | C++20 (GCC 13-64) | Accepted | 124 ms | 6300 KB |
| 373227905 | May/01/2026 15:38 | Gryllshsy | H - Royal Federation | C++20 (GCC 13-64) | Wrong answer on test 1 | 62 ms | 6300 KB |
| 373222757 | May/01/2026 14:40 | GYqun1 | H - Royal Federation | C++17 (GCC 7-32) | Wrong answer on test 1 | 62 ms | 2400 KB |
| 368569159 | Mar/28/2026 19:03 | eyzhong | E - Strong Defence | C++17 (GCC 7-32) | Runtime error on test 1 | 124 ms | 0 KB |
| 366752905 | Mar/15/2026 06:21 | sry417 | C - Strange Counter | C++20 (GCC 13-64) | Accepted | 92 ms | 200 KB |
| 366752627 | Mar/15/2026 06:16 | sry417 | F - Weird Dissimilarity | C++20 (GCC 13-64) | Accepted | 92 ms | 39400 KB |
| 366752558 | Mar/15/2026 06:14 | sry417 | F - Weird Dissimilarity | C++20 (GCC 13-64) | Wrong answer on test 12 | 92 ms | 39400 KB |
| 366749158 | Mar/15/2026 05:02 | sry417 | F - Weird Dissimilarity | C++20 (GCC 13-64) | Wrong answer on test 1 | 30 ms | 39300 KB |
| 366749095 | Mar/15/2026 05:00 | sry417 | F - Weird Dissimilarity | C++20 (GCC 13-64) | Runtime error on test 12 | 124 ms | 39400 KB |
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