→ 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 |
|---|---|---|---|---|---|---|---|
| 370757679 | Apr/12/2026 06:54 | sry417 | I - Stable Sets | C++20 (GCC 13-64) | Accepted | 92 ms | 100 KB |
| 367899361 | Mar/23/2026 16:17 | chenwz | C - Holidays | C++20 (GCC 13-64) | Accepted | 92 ms | 0 KB |
| 367898452 | Mar/23/2026 16:10 | chenwz | C - Holidays | C++20 (GCC 13-64) | Accepted | 124 ms | 0 KB |
| 367897854 | Mar/23/2026 16:05 | chenwz | C - Holidays | C++20 (GCC 13-64) | Accepted | 92 ms | 0 KB |
| 367897201 | Mar/23/2026 16:01 | chenwz | C - Holidays | C++20 (GCC 13-64) | Accepted | 92 ms | 0 KB |
| 367895874 | Mar/23/2026 15:48 | chenwz | C - Holidays | C++20 (GCC 13-64) | Wrong answer on test 1 | 62 ms | 0 KB |
| 367895443 | Mar/23/2026 15:45 | chenwz | C - Holidays | C++20 (GCC 13-64) | Runtime error on test 1 | 30 ms | 0 KB |
| 367895352 | Mar/23/2026 15:44 | chenwz | C - Holidays | C++20 (GCC 13-64) | Compilation error | 0 ms | 0 KB |
| 367894395 | Mar/23/2026 15:36 | chenwz | C - Holidays | C++20 (GCC 13-64) | Accepted | 92 ms | 100 KB |
| 367890518 | Mar/23/2026 15:00 | chenwz | I - Stable Sets | C++20 (GCC 13-64) | Accepted | 92 ms | 100 KB |
| 367875350 | Mar/23/2026 12:24 | chenwz | I - Stable Sets | C++20 (GCC 13-64) | Accepted | 92 ms | 100 KB |
| 367841501 | Mar/23/2026 05:21 | chenwz | I - Stable Sets | C++20 (GCC 13-64) | Accepted | 92 ms | 100 KB |
| 367795915 | Mar/22/2026 17:44 | chenwz | G - Puzzle | C++20 (GCC 13-64) | Accepted | 62 ms | 100 KB |
| 367795347 | Mar/22/2026 17:40 | chenwz | G - Puzzle | C++20 (GCC 13-64) | Accepted | 62 ms | 100 KB |
| 367795200 | Mar/22/2026 17:39 | chenwz | G - Puzzle | C++20 (GCC 13-64) | Compilation error | 0 ms | 0 KB |
| 367795144 | Mar/22/2026 17:38 | chenwz | G - Puzzle | C++20 (GCC 13-64) | Compilation error | 0 ms | 0 KB |
| 367794569 | Mar/22/2026 17:34 | chenwz | G - Puzzle | C++20 (GCC 13-64) | Wrong answer on test 1 | 62 ms | 0 KB |
| 367794197 | Mar/22/2026 17:31 | chenwz | G - Puzzle | C++20 (GCC 13-64) | Wrong answer on test 1 | 0 ms | 0 KB |
| 367794125 | Mar/22/2026 17:31 | chenwz | G - Puzzle | C++20 (GCC 13-64) | Compilation error | 0 ms | 0 KB |
| 367789129 | Mar/22/2026 16:53 | chenwz | G - Puzzle | C++20 (GCC 13-64) | Accepted | 62 ms | 0 KB |
| 367786056 | Mar/22/2026 16:30 | chenwz | B - Under Control | C++20 (GCC 13-64) | Accepted | 124 ms | 100 KB |
| 367785290 | Mar/22/2026 16:25 | chenwz | B - Under Control | C++20 (GCC 13-64) | Accepted | 156 ms | 1100 KB |
| 367785192 | Mar/22/2026 16:24 | chenwz | B - Under Control | C++20 (GCC 13-64) | Accepted | 218 ms | 1200 KB |
| 367785119 | Mar/22/2026 16:24 | chenwz | B - Under Control | C++20 (GCC 13-64) | Compilation error | 0 ms | 0 KB |
| 367783987 | Mar/22/2026 16:16 | chenwz | C - Holidays | C++20 (GCC 13-64) | Wrong answer on test 1 | 0 ms | 0 KB |
| 367749260 | Mar/22/2026 11:27 | qwwqcy | B - Under Control | C++20 (GCC 13-64) | Wrong answer on test 1 | 30 ms | 0 KB |
| 367727447 | Mar/22/2026 07:26 | qwwqcy | G - Puzzle | C++20 (GCC 13-64) | Wrong answer on test 1 | 30 ms | 0 KB |
| 367727354 | Mar/22/2026 07:25 | qwwqcy | G - Puzzle | C++20 (GCC 13-64) | Wrong answer on test 1 | 0 ms | 1000 KB |
| 367725406 | Mar/22/2026 06:47 | wokmjeu | H - Quest | C++17 (GCC 7-32) | Wrong answer on test 1 | 30 ms | 0 KB |
| 367540469 | Mar/21/2026 06:34 | qwwqcy | B - Under Control | C++20 (GCC 13-64) | Wrong answer on test 20 | 92 ms | 0 KB |
| 367540391 | Mar/21/2026 06:32 | qwwqcy | B - Under Control | C++20 (GCC 13-64) | Wrong answer on test 1 | 30 ms | 0 KB |
| 367534808 | Mar/21/2026 04:33 | chenwz | C - Holidays | C++20 (GCC 13-64) | Accepted | 92 ms | 100 KB |
| 367534160 | Mar/21/2026 04:18 | chenwz | I - Stable Sets | C++20 (GCC 13-64) | Accepted | 92 ms | 100 KB |
| 367533745 | Mar/21/2026 04:08 | chenwz | I - Stable Sets | C++20 (GCC 13-64) | Accepted | 92 ms | 100 KB |
| 367533349 | Mar/21/2026 03:55 | chenwz | B - Under Control | C++20 (GCC 13-64) | Accepted | 186 ms | 1100 KB |
| 367533319 | Mar/21/2026 03:54 | chenwz | B - Under Control | C++20 (GCC 13-64) | Wrong answer on test 1 | 30 ms | 100 KB |
| 367533233 | Mar/21/2026 03:51 | chenwz | B - Under Control | C++20 (GCC 13-64) | Wrong answer on test 1 | 62 ms | 0 KB |
| 367504284 | Mar/20/2026 19:32 | chenwz | C - Holidays | C++20 (GCC 13-64) | Accepted | 92 ms | 200 KB |
| 367503956 | Mar/20/2026 19:30 | chenwz | C - Holidays | C++20 (GCC 13-64) | Wrong answer on test 1 | 30 ms | 200 KB |
| 367503423 | Mar/20/2026 19:25 | chenwz | G - Puzzle | C++20 (GCC 13-64) | Accepted | 62 ms | 0 KB |
| 367502496 | Mar/20/2026 19:17 | chenwz | I - Stable Sets | C++20 (GCC 13-64) | Accepted | 124 ms | 100 KB |
| 367501894 | Mar/20/2026 19:11 | chenwz | B - Under Control | C++20 (GCC 13-64) | Accepted | 186 ms | 100 KB |
| 367501732 | Mar/20/2026 19:10 | chenwz | B - Under Control | C++20 (GCC 13-64) | Wrong answer on test 1 | 62 ms | 0 KB |
| 367501460 | Mar/20/2026 19:08 | chenwz | B - Under Control | C++20 (GCC 13-64) | Wrong answer on test 4 | 30 ms | 0 KB |
| 367500722 | Mar/20/2026 19:01 | chenwz | A - Little Brackets | C++20 (GCC 13-64) | Accepted | 62 ms | 0 KB |
| 367499787 | Mar/20/2026 18:52 | chenwz | A - Little Brackets | C++20 (GCC 13-64) | Accepted | 436 ms | 2100 KB |
| 367450122 | Mar/20/2026 10:18 | qwwqcy | H - Quest | C++20 (GCC 13-64) | Accepted | 62 ms | 100 KB |
| 367450040 | Mar/20/2026 10:18 | qwwqcy | H - Quest | C++20 (GCC 13-64) | Memory limit exceeded on test 8 | 968 ms | 65500 KB |
| 367449900 | Mar/20/2026 10:16 | qwwqcy | H - Quest | C++20 (GCC 13-64) | Wrong answer on test 1 | 62 ms | 0 KB |
| 367446470 | Mar/20/2026 09:38 | qwwqcy | C - Holidays | C++20 (GCC 13-64) | Accepted | 92 ms | 200 KB |
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