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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 |
|---|---|---|---|---|---|---|---|
| 373886176 | May/08/2026 10:29 | syzxliangyuhan | J - Wikipidia | C++20 (GCC 13-64) | Accepted | 124 ms | 4900 KB |
| 373886147 | May/08/2026 10:28 | syzxliangyuhan | J - Wikipidia | C++20 (GCC 13-64) | Compilation error | 0 ms | 0 KB |
| 373886050 | May/08/2026 10:27 | syzxliangyuhan | J - Wikipidia | C++20 (GCC 13-64) | Wrong answer on test 1 | 0 ms | 4300 KB |
| 373874274 | May/08/2026 07:06 | zuixin | J - Wikipidia | C++20 (GCC 13-64) | Accepted | 124 ms | 19800 KB |
| 373868752 | May/08/2026 04:27 | syzxliangyuhan | E - Points and Lines | C++20 (GCC 13-64) | Accepted | 92 ms | 300 KB |
| 373868739 | May/08/2026 04:26 | zuixin | E - Points and Lines | C++20 (GCC 13-64) | Accepted | 92 ms | 400 KB |
| 373868702 | May/08/2026 04:25 | syzxliangyuhan | E - Points and Lines | C++20 (GCC 13-64) | Wrong answer on test 6 | 62 ms | 200 KB |
| 373868502 | May/08/2026 04:18 | zuixin | E - Points and Lines | C++20 (GCC 13-64) | Wrong answer on test 6 | 30 ms | 300 KB |
| 373868470 | May/08/2026 04:17 | zuixin | E - Points and Lines | C++20 (GCC 13-64) | Wrong answer on test 6 | 30 ms | 300 KB |
| 373868404 | May/08/2026 04:14 | zuixin | E - Points and Lines | C++20 (GCC 13-64) | Wrong answer on test 6 | 62 ms | 400 KB |
| 373868371 | May/08/2026 04:13 | zuixin | E - Points and Lines | C++20 (GCC 13-64) | Wrong answer on test 1 | 30 ms | 400 KB |
| 373868262 | May/08/2026 04:09 | zuixin | E - Points and Lines | C++20 (GCC 13-64) | Wrong answer on test 1 | 62 ms | 300 KB |
| 373057388 | Apr/30/2026 15:03 | sto_HXY_orz | K - XOR | C++20 (GCC 13-64) | Accepted | 62 ms | 1600 KB |
| 373057258 | Apr/30/2026 15:01 | sto_HXY_orz | K - XOR | C++20 (GCC 13-64) | Accepted | 92 ms | 1600 KB |
| 373057221 | Apr/30/2026 15:01 | sto_HXY_orz | K - XOR | C++20 (GCC 13-64) | Wrong answer on test 1 | 30 ms | 1600 KB |
| 373056982 | Apr/30/2026 14:57 | sto_HXY_orz | K - XOR | C++20 (GCC 13-64) | Wrong answer on test 8 | 92 ms | 1600 KB |
| 372932013 | Apr/29/2026 13:15 | Chen_ri_kang | J - Wikipidia | C++17 (GCC 7-32) | Accepted | 62 ms | 2500 KB |
| 372912530 | Apr/29/2026 08:54 | Chen_ri_kang | E - Points and Lines | C++17 (GCC 7-32) | Accepted | 92 ms | 100 KB |
| 372799324 | Apr/28/2026 14:36 | Chen_ri_kang | K - XOR | C++17 (GCC 7-32) | Accepted | 62 ms | 100 KB |
| 372799285 | Apr/28/2026 14:35 | Chen_ri_kang | K - XOR | C++17 (GCC 7-32) | Accepted | 92 ms | 100 KB |
| 372798984 | Apr/28/2026 14:33 | Chen_ri_kang | K - XOR | C++17 (GCC 7-32) | Wrong answer on test 1 | 0 ms | 0 KB |
| 372787216 | Apr/28/2026 12:11 | Chen_ri_kang | K - XOR | C++17 (GCC 7-32) | Wrong answer on test 8 | 92 ms | 100 KB |
| 372787050 | Apr/28/2026 12:09 | Chen_ri_kang | K - XOR | C++17 (GCC 7-32) | Wrong answer on test 3 | 30 ms | 0 KB |
| 372778823 | Apr/28/2026 10:07 | lucky_clover_ | K - XOR | C++20 (GCC 13-64) | Accepted | 92 ms | 100 KB |
| 372778802 | Apr/28/2026 10:07 | lucky_clover_ | K - XOR | C++20 (GCC 13-64) | Accepted | 92 ms | 100 KB |
| 372778707 | Apr/28/2026 10:06 | lucky_clover_ | K - XOR | C++20 (GCC 13-64) | Runtime error on test 15 | 62 ms | 100 KB |
| 372775816 | Apr/28/2026 09:20 | lucky_clover_ | K - XOR | C++20 (GCC 13-64) | Wrong answer on test 19 | 62 ms | 100 KB |
| 372775684 | Apr/28/2026 09:17 | lucky_clover_ | K - XOR | C++20 (GCC 13-64) | Wrong answer on test 7 | 30 ms | 100 KB |
| 372775574 | Apr/28/2026 09:16 | lucky_clover_ | K - XOR | C++20 (GCC 13-64) | Wrong answer on test 8 | 62 ms | 0 KB |
| 372775553 | Apr/28/2026 09:15 | lucky_clover_ | K - XOR | C++20 (GCC 13-64) | Wrong answer on test 8 | 30 ms | 100 KB |
| 372769198 | Apr/28/2026 07:12 | daisybunny | K - XOR | C++20 (GCC 13-64) | Accepted | 92 ms | 100 KB |
| 372768161 | Apr/28/2026 06:43 | daisybunny | K - XOR | C++20 (GCC 13-64) | Wrong answer on test 8 | 62 ms | 100 KB |
| 372768130 | Apr/28/2026 06:43 | daisybunny | K - XOR | C++20 (GCC 13-64) | Wrong answer on test 1 | 62 ms | 100 KB |
| 372629791 | Apr/26/2026 18:35 | chenwz | H - Road Signs | C++17 (GCC 7-32) | Accepted | 92 ms | 100 KB |
| 372624456 | Apr/26/2026 17:52 | chenwz | H - Road Signs | C++17 (GCC 7-32) | Accepted | 124 ms | 100 KB |
| 372624373 | Apr/26/2026 17:51 | chenwz | H - Road Signs | C++17 (GCC 7-32) | Accepted | 124 ms | 100 KB |
| 372623250 | Apr/26/2026 17:39 | chenwz | B - Minimal Matrix | C++20 (GCC 13-64) | Accepted | 436 ms | 100 KB |
| 372622605 | Apr/26/2026 17:32 | chenwz | B - Minimal Matrix | C++20 (GCC 13-64) | Accepted | 374 ms | 100 KB |
| 372619291 | Apr/26/2026 16:58 | chenwz | B - Minimal Matrix | C++20 (GCC 13-64) | Accepted | 468 ms | 100 KB |
| 372618312 | Apr/26/2026 16:49 | chenwz | J - Wikipidia | C++20 (GCC 13-64) | Accepted | 124 ms | 5300 KB |
| 372617929 | Apr/26/2026 16:45 | chenwz | D - Avoiding Partitions | PyPy 3-64 | Runtime error on test 1 | 124 ms | 2900 KB |
| 372580809 | Apr/26/2026 10:26 | chenwz | D - Avoiding Partitions | PyPy 3-64 | Accepted | 250 ms | 5700 KB |
| 372580424 | Apr/26/2026 10:21 | chenwz | J - Wikipidia | C++20 (GCC 13-64) | Accepted | 124 ms | 5300 KB |
| 372580349 | Apr/26/2026 10:21 | chenwz | H - Road Signs | C++20 (GCC 13-64) | Accepted | 124 ms | 100 KB |
| 372580097 | Apr/26/2026 10:18 | chenwz | F - Reversing Prefixes | C++20 (GCC 13-64) | Accepted | 218 ms | 14200 KB |
| 372580012 | Apr/26/2026 10:17 | chenwz | E - Points and Lines | C++20 (GCC 13-64) | Accepted | 156 ms | 100 KB |
| 372579944 | Apr/26/2026 10:16 | chenwz | D - Avoiding Partitions | C++20 (GCC 13-64) | Compilation error | 0 ms | 0 KB |
| 372579666 | Apr/26/2026 10:14 | chenwz | B - Minimal Matrix | C++20 (GCC 13-64) | Accepted | 468 ms | 100 KB |
| 372579604 | Apr/26/2026 10:13 | chenwz | A - Graph Theory | C++20 (GCC 13-64) | Accepted | 124 ms | 100 KB |
| 371490914 | Apr/17/2026 14:53 | Chen_ri_kang | E - Points and Lines | C++17 (GCC 7-32) | Accepted | 92 ms | 100 KB |
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