→ 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 |
|---|---|---|---|---|---|---|---|
| 372407069 | Apr/25/2026 05:58 | qwwqcy | F - Figure Skating | C++20 (GCC 13-64) | Accepted | 93 ms | 0 KB |
| 364210837 | Feb/24/2026 18:35 | ezraft | B - Bipartite Bicolored Graphs | C++20 (GCC 13-64) | Accepted | 15 ms | 100 KB |
| 364210745 | Feb/24/2026 18:34 | ezraft | B - Bipartite Bicolored Graphs | C++20 (GCC 13-64) | Compilation error | 0 ms | 0 KB |
| 363760263 | Feb/21/2026 04:31 | lced quacks: diss_quack, lce4113, ezraft# | D - Dichromatic Trees | C++20 (GCC 13-64) | Accepted | 3703 ms | 93800 KB |
| 363760218 | Feb/21/2026 04:29 | lced quacks: diss_quack, lce4113, ezraft# | D - Dichromatic Trees | C++20 (GCC 13-64) | Wrong answer on test 4 | 3046 ms | 93700 KB |
| 363758507 | Feb/21/2026 03:34 | lced quacks: diss_quack, lce4113, ezraft# | E - Ebola Virus | C++20 (GCC 13-64) | Accepted | 171 ms | 208100 KB |
| 363754930 | Feb/21/2026 01:55 | lced quacks: diss_quack, lce4113, ezraft# | F - Figure Skating | C++20 (GCC 13-64) | Accepted | 46 ms | 0 KB |
| 363754293 | Feb/21/2026 01:37 | lced quacks: diss_quack, lce4113, ezraft# | G - Game of Col on Bamboo Forests | C++20 (GCC 13-64) | Accepted | 125 ms | 11900 KB |
| 363753929 | Feb/21/2026 01:29 | lced quacks: diss_quack, lce4113, ezraft# | J - Jingles of a String | C++20 (GCC 13-64) | Accepted | 1375 ms | 51300 KB |
| 363752498 | Feb/21/2026 00:59 | lced quacks: diss_quack, lce4113, ezraft# | A - Astronomy Problem | C++20 (GCC 13-64) | Accepted | 4046 ms | 361600 KB |
| 363567640 | Feb/19/2026 06:07 | jeroenodb | B - Bipartite Bicolored Graphs | C++23 (GCC 14-64, msys2) | Accepted | 31 ms | 800 KB |
| 363565857 | Feb/19/2026 05:04 | jeroenodb | B - Bipartite Bicolored Graphs | C++23 (GCC 14-64, msys2) | Wrong answer on test 1 | 15 ms | 800 KB |
| 363564964 | Feb/19/2026 04:37 | jeroenodb | A - Astronomy Problem | C++23 (GCC 14-64, msys2) | Accepted | 421 ms | 96000 KB |
| 363392853 | Feb/17/2026 15:05 | Antares_qwq | A - Astronomy Problem | C++23 (GCC 14-64, msys2) | Accepted | 62 ms | 11600 KB |
| 363382140 | Feb/17/2026 13:12 | Antares_qwq | A - Astronomy Problem | C++23 (GCC 14-64, msys2) | Wrong answer on test 2 | 156 ms | 0 KB |
| 363382055 | Feb/17/2026 13:12 | Antares_qwq | A - Astronomy Problem | C++23 (GCC 14-64, msys2) | Wrong answer on test 1 | 15 ms | 0 KB |
| 357772447 | Jan/14/2026 04:57 | qwwqcy | B - Bipartite Bicolored Graphs | C++20 (GCC 13-64) | Accepted | 31 ms | 0 KB |
| 357772397 | Jan/14/2026 04:56 | qwwqcy | B - Bipartite Bicolored Graphs | C++20 (GCC 13-64) | Wrong answer on test 1 | 0 ms | 0 KB |
| 357188398 | Jan/10/2026 12:30 | qwwqcy | E - Ebola Virus | C++20 (GCC 13-64) | Accepted | 906 ms | 71000 KB |
| 357188056 | Jan/10/2026 12:27 | qwwqcy | E - Ebola Virus | C++17 (GCC 7-32) | Compilation error | 0 ms | 0 KB |
| 357185169 | Jan/10/2026 12:02 | qwwqcy | E - Ebola Virus | C++17 (GCC 7-32) | Accepted | 109 ms | 0 KB |
| 355307570 | Dec/27/2025 17:09 | Zy.Chen | A - Astronomy Problem | C++20 (GCC 13-64) | Accepted | 734 ms | 313200 KB |
| 355307450 | Dec/27/2025 17:07 | Zy.Chen | A - Astronomy Problem | C++20 (GCC 13-64) | Wrong answer on test 1 | 31 ms | 313200 KB |
| 355192957 | Dec/26/2025 18:26 | bgsdf | A - Astronomy Problem | C++20 (GCC 13-64) | Memory limit exceeded on test 25 | 5343 ms | 524300 KB |
| 355129659 | Dec/26/2025 09:11 | qwwqcy | J - Jingles of a String | C++17 (GCC 7-32) | Accepted | 453 ms | 19900 KB |
| 354902734 | Dec/24/2025 10:49 | qwwqcy | E - Ebola Virus | C++17 (GCC 7-32) | Accepted | 93 ms | 0 KB |
| 354901835 | Dec/24/2025 10:41 | chenwz | A - Astronomy Problem | C++17 (GCC 7-32) | Accepted | 3625 ms | 281700 KB |
| 354901818 | Dec/24/2025 10:40 | qwwqcy | E - Ebola Virus | C++17 (GCC 7-32) | Wrong answer on test 1 | 15 ms | 0 KB |
| 354901464 | Dec/24/2025 10:37 | qwwqcy | E - Ebola Virus | C++17 (GCC 7-32) | Wrong answer on test 1 | 15 ms | 0 KB |
| 354900427 | Dec/24/2025 10:28 | chenwz | A - Astronomy Problem | C++17 (GCC 7-32) | Accepted | 4609 ms | 252000 KB |
| 354898930 | Dec/24/2025 10:15 | qwwqcy | A - Astronomy Problem | C++17 (GCC 7-32) | Accepted | 7859 ms | 507700 KB |
| 354441811 | Dec/21/2025 16:40 | chenwz | J - Jingles of a String | C++17 (GCC 7-32) | Accepted | 453 ms | 20000 KB |
| 354403890 | Dec/21/2025 11:05 | chenwz | J - Jingles of a String | C++17 (GCC 7-32) | Accepted | 421 ms | 19900 KB |
| 354402822 | Dec/21/2025 10:56 | chenwz | J - Jingles of a String | C++17 (GCC 7-32) | Accepted | 500 ms | 19900 KB |
| 354400594 | Dec/21/2025 10:36 | chenwz | H - Heavy-Light Decomposition | C++17 (GCC 7-32) | Accepted | 921 ms | 24300 KB |
| 354313045 | Dec/20/2025 15:35 | chenwz | B - Bipartite Bicolored Graphs | C++17 (GCC 7-32) | Accepted | 31 ms | 0 KB |
| 354312533 | Dec/20/2025 15:31 | chenwz | B - Bipartite Bicolored Graphs | C++17 (GCC 7-32) | Wrong answer on test 2 | 31 ms | 0 KB |
| 354311507 | Dec/20/2025 15:22 | chenwz | B - Bipartite Bicolored Graphs | C++17 (GCC 7-32) | Accepted | 15 ms | 200 KB |
| 354309758 | Dec/20/2025 15:08 | chenwz | A - Astronomy Problem | C++17 (GCC 7-32) | Accepted | 7859 ms | 507600 KB |
| 354300167 | Dec/20/2025 13:44 | chenwz | A - Astronomy Problem | C++17 (GCC 7-32) | Accepted | 93 ms | 200 KB |
| 353987385 | Dec/18/2025 17:53 | chenwz | E - Ebola Virus | C++17 (GCC 7-32) | Accepted | 93 ms | 100 KB |
| 353987317 | Dec/18/2025 17:52 | chenwz | E - Ebola Virus | C++17 (GCC 7-32) | Compilation error | 0 ms | 0 KB |
| 352176075 | Dec/06/2025 09:59 | hobbycp | H - Heavy-Light Decomposition | C++23 (GCC 14-64, msys2) | Accepted | 1000 ms | 36900 KB |
| 352175461 | Dec/06/2025 09:54 | hobbycp | H - Heavy-Light Decomposition | C++23 (GCC 14-64, msys2) | Wrong answer on test 1 | 15 ms | 0 KB |
| 352164168 | Dec/06/2025 08:29 | hobbycp | H - Heavy-Light Decomposition | C++23 (GCC 14-64, msys2) | Wrong answer on test 1 | 0 ms | 19000 KB |
| 351867871 | Dec/04/2025 16:22 | hobbycp | C - Catalan Numbers | PyPy 3-64 | Accepted | 62 ms | 0 KB |
| 347866859 | Nov/07/2025 14:29 | ngmhhay | F - Figure Skating | C++20 (GCC 13-64) | Accepted | 46 ms | 0 KB |
| 344790611 | Oct/20/2025 04:21 | qqqaaazzz | B - Bipartite Bicolored Graphs | C++17 (GCC 7-32) | Accepted | 155 ms | 65000 KB |
| 331968012 | Aug/01/2025 17:15 | maxplus | C - Catalan Numbers | Python 3 | Accepted | 78 ms | 0 KB |
| 322454892 | Jun/02/2025 02:32 | RobertYL | I - Interactive Memory Management | C++20 (GCC 13-64) | Accepted | 327 ms | 700 KB |
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