→ About Contest
Tasks used in this contest have been previously used in different competitions. Football: COCI 2012/13 contest #5 Inverse Addition: COCI 2012/13 contest #6 Obfuscation: NWERC 2007 Boggle, Booking, Ringworld: GCPC 2013
→ 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 |
|---|---|---|---|---|---|---|---|
| 362477625 | Feb/11/2026 18:55 | CtrlAlt | B - Booking | C++23 (GCC 14-64, msys2) | Accepted | 2046 ms | 0 KB |
| 328507039 | Jul/11/2025 13:05 | CtrlAlt | B - Booking | C++23 (GCC 14-64, msys2) | Accepted | 1968 ms | 0 KB |
| 324437467 | Jun/15/2025 07:31 | _T_L_E | B - Booking | C++23 (GCC 14-64, msys2) | Time limit exceeded on test 8 | 3000 ms | 0 KB |
| 324437462 | Jun/15/2025 07:31 | _T_L_E | B - Booking | C++23 (GCC 14-64, msys2) | Wrong answer on test 5 | 77 ms | 0 KB |
| 323694891 | Jun/10/2025 02:13 | oqyepsebiay8r | E - Ringworld | PyPy 3-64 | Wrong answer on test 1 | 155 ms | 8400 KB |
| 323694878 | Jun/10/2025 02:13 | 5dh94vnrr2qj | E - Ringworld | PyPy 3-64 | Wrong answer on test 1 | 124 ms | 6800 KB |
| 323672038 | Jun/09/2025 20:34 | xzqe9ohb2tnx | E - Ringworld | PyPy 3-64 | Wrong answer on test 1 | 109 ms | 5600 KB |
| 323556566 | Jun/09/2025 01:47 | u782ey24jmcvf | E - Ringworld | PyPy 3-64 | Wrong answer on test 2 | 296 ms | 9400 KB |
| 323556559 | Jun/09/2025 01:47 | a6svdwt6dhquv | E - Ringworld | PyPy 3-64 | Memory limit exceeded on test 5 | 546 ms | 131100 KB |
| 323556521 | Jun/09/2025 01:46 | s8cl7vrbi6p5 | E - Ringworld | PyPy 3-64 | Wrong answer on test 1 | 140 ms | 8700 KB |
| 323117280 | Jun/06/2025 14:01 | 252fzl4eh0u8y | E - Ringworld | PyPy 3-64 | Wrong answer on test 1 | 109 ms | 5900 KB |
| 323117164 | Jun/06/2025 14:00 | 252fzl4eh0u8y | E - Ringworld | PyPy 3-64 | Wrong answer on test 1 | 108 ms | 5900 KB |
| 322906392 | Jun/04/2025 22:27 | 5dh94vnrr2qj | E - Ringworld | PyPy 3-64 | Wrong answer on test 1 | 108 ms | 5900 KB |
| 319493649 | May/13/2025 13:14 | p9vc9huq3ix10 | E - Ringworld | PyPy 3-64 | Memory limit exceeded on test 5 | 2015 ms | 131100 KB |
| 317372237 | Apr/26/2025 21:10 | 3rgem3c9yb6h | E - Ringworld | PyPy 3-64 | Memory limit exceeded on test 5 | 2108 ms | 131100 KB |
| 316811169 | Apr/23/2025 15:34 | 7jd0ca7k4e56 | E - Ringworld | PyPy 3-64 | Wrong answer on test 1 | 140 ms | 8700 KB |
| 313341779 | Apr/01/2025 12:28 | hdcdnnaqg69zq | E - Ringworld | PyPy 3-64 | Wrong answer on test 1 | 125 ms | 6500 KB |
| 310400810 | Mar/13/2025 14:50 | 1l9vr5o58wvf1 | E - Ringworld | PyPy 3-64 | Memory limit exceeded on test 5 | 1936 ms | 131100 KB |
| 218905292 | Aug/15/2023 12:46 | Nguyencter | E - Ringworld | C++20 (GCC 11-64) | Wrong answer on test 1 | 31 ms | 15700 KB |
| 218903022 | Aug/15/2023 12:28 | TrendBattles | E - Ringworld | C++14 (GCC 6-32) | Wrong answer on test 1 | 15 ms | 500 KB |
| 218902796 | Aug/15/2023 12:26 | TrendBattles | E - Ringworld | C++14 (GCC 6-32) | Wrong answer on test 1 | 0 ms | 500 KB |
| 218899801 | Aug/15/2023 12:03 | TrendBattles | E - Ringworld | C++14 (GCC 6-32) | Wrong answer on test 1 | 31 ms | 300 KB |
| 218899418 | Aug/15/2023 12:00 | TrendBattles | E - Ringworld | C++17 (GCC 7-32) | Wrong answer on test 1 | 31 ms | 300 KB |
| 184197709 | Dec/07/2022 13:44 | cucudang | B - Booking | Python 3 | Accepted | 2121 ms | 1100 KB |
| 184197280 | Dec/07/2022 13:41 | cucudang | B - Booking | Python 3 | Wrong answer on test 1 | 30 ms | 400 KB |
| 132287295 | Oct/17/2021 21:58 | CarolinaMoura | E - Ringworld | C++17 (GCC 7-32) | Accepted | 1794 ms | 36000 KB |
| 132287241 | Oct/17/2021 21:57 | CarolinaMoura | E - Ringworld | C++17 (GCC 7-32) | Runtime error on test 15 | 1808 ms | 18800 KB |
| 132284822 | Oct/17/2021 21:20 | CarolinaMoura | E - Ringworld | C++17 (GCC 7-32) | Wrong answer on test 1 | 15 ms | 9600 KB |
| 111610695 | Apr/01/2021 08:14 | palilo | E - Ringworld | C++17 (GCC 9-64) | Accepted | 514 ms | 2400 KB |
| 109670180 | Mar/11/2021 07:24 | palilo | E - Ringworld | C++17 (GCC 9-64) | Accepted | 530 ms | 4100 KB |
| 109670099 | Mar/11/2021 07:22 | palilo | E - Ringworld | C++17 (GCC 9-64) | Accepted | 577 ms | 4400 KB |
| 109668616 | Mar/11/2021 06:44 | palilo | E - Ringworld | C++17 (GCC 9-64) | Wrong answer on test 1 | 15 ms | 100 KB |
| 94384069 | Oct/01/2020 10:24 | albion0211 | B - Booking | C++17 (GCC 7-32) | Wrong answer on test 5 | 140 ms | 800 KB |
| 94382762 | Oct/01/2020 10:04 | albion0211 | B - Booking | C++17 (GCC 7-32) | Wrong answer on test 5 | 171 ms | 800 KB |
| 94382732 | Oct/01/2020 10:04 | albion0211 | B - Booking | GNU C11 | Compilation error | 0 ms | 0 KB |
| 88069030 | Jul/26/2020 18:37 | derzhivkurse | E - Ringworld | C++14 (GCC 6-32) | Wrong answer on test 11 | 1918 ms | 11200 KB |
| 88068324 | Jul/26/2020 18:28 | derzhivkurse | E - Ringworld | C++14 (GCC 6-32) | Wrong answer on test 1 | 61 ms | 4000 KB |
| 88068061 | Jul/26/2020 18:24 | derzhivkurse | E - Ringworld | C++14 (GCC 6-32) | Wrong answer on test 1 | 61 ms | 4000 KB |
| 88067576 | Jul/26/2020 18:17 | derzhivkurse | E - Ringworld | C++14 (GCC 6-32) | Time limit exceeded on test 15 | 3000 ms | 6700 KB |
| 88067460 | Jul/26/2020 18:16 | derzhivkurse | E - Ringworld | C++14 (GCC 6-32) | Wrong answer on test 1 | 30 ms | 3800 KB |
| 88067363 | Jul/26/2020 18:15 | derzhivkurse | E - Ringworld | C++14 (GCC 6-32) | Wrong answer on test 1 | 31 ms | 3800 KB |
| 88067087 | Jul/26/2020 18:11 | derzhivkurse | E - Ringworld | C++14 (GCC 6-32) | Wrong answer on test 1 | 156 ms | 4800 KB |
| 88067014 | Jul/26/2020 18:10 | derzhivkurse | E - Ringworld | C++14 (GCC 6-32) | Wrong answer on test 1 | 186 ms | 4800 KB |
| 88066945 | Jul/26/2020 18:09 | derzhivkurse | E - Ringworld | C++14 (GCC 6-32) | Wrong answer on test 1 | 155 ms | 4800 KB |
| 88066822 | Jul/26/2020 18:08 | derzhivkurse | E - Ringworld | C++14 (GCC 6-32) | Wrong answer on test 1 | 171 ms | 4800 KB |
| 88066746 | Jul/26/2020 18:06 | derzhivkurse | E - Ringworld | C++14 (GCC 6-32) | Wrong answer on test 1 | 171 ms | 4800 KB |
| 88066571 | Jul/26/2020 18:04 | derzhivkurse | E - Ringworld | C++14 (GCC 6-32) | Wrong answer on test 1 | 156 ms | 4800 KB |
| 88066356 | Jul/26/2020 18:01 | derzhivkurse | E - Ringworld | C++14 (GCC 6-32) | Wrong answer on test 1 | 155 ms | 4800 KB |
| 88066316 | Jul/26/2020 18:01 | derzhivkurse | E - Ringworld | C++14 (GCC 6-32) | Compilation error | 0 ms | 0 KB |
| 88066233 | Jul/26/2020 18:00 | derzhivkurse | E - Ringworld | C++14 (GCC 6-32) | Wrong answer on test 1 | 155 ms | 4800 KB |
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