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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.
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→ Contest materials
Problem I - Hidden Tree
Contest status
| # | When | Who | Problem | Lang | Verdict | Time | Memory |
|---|---|---|---|---|---|---|---|
| 126240073 | Aug/18/2021 10:27 | vjudge3 | I - Hidden Tree | C++17 (GCC 9-64) | Accepted | 358 ms | 18000 KB |
| 46992629 | Dec/14/2018 08:59 | vjudge5 | I - Hidden Tree | C++14 (GCC 6-32) | Accepted | 530 ms | 1300 KB |
| 46992646 | Dec/14/2018 09:00 | vjudge3 | I - Hidden Tree | C++14 (GCC 6-32) | Accepted | 436 ms | 700 KB |
| 126263757 | Aug/18/2021 15:12 | vjudge3 | I - Hidden Tree | C++14 (GCC 6-32) | Accepted | 358 ms | 5800 KB |
| 126220444 | Aug/18/2021 04:46 | DerekFeng | I - Hidden Tree | C++17 (GCC 7-32) | Accepted | 655 ms | 7800 KB |
| 126229438 | Aug/18/2021 07:57 | vjudge4 | I - Hidden Tree | C++17 (GCC 9-64) | Accepted | 452 ms | 5800 KB |
| 91448212 | Aug/31/2020 05:13 | _gXX | I - Hidden Tree | C++17 (GCC 7-32) | Accepted | 202 ms | 5800 KB |
| 295293953 | Dec/06/2024 19:58 | crowdforces | I - Hidden Tree | C++20 (GCC 13-64) | Accepted | 390 ms | 0 KB |
| 126224312 | Aug/18/2021 06:17 | vjudge2 | I - Hidden Tree | C++17 (GCC 7-32) | Accepted | 202 ms | 5800 KB |
| 88907009 | Aug/05/2020 03:14 | dqhungdl | I - Hidden Tree | C++17 (GCC 7-32) | Accepted | 1965 ms | 7600 KB |
| 126229082 | Aug/18/2021 07:51 | Yianlaen | I - Hidden Tree | C++17 (GCC 9-64) | Accepted | 499 ms | 6300 KB |
| 126224285 | Aug/18/2021 06:16 | SodiumCl10 | I - Hidden Tree | C++17 (GCC 7-32) | Accepted | 218 ms | 5800 KB |
| 295275199 | Dec/06/2024 17:57 | crowdforces | I - Hidden Tree | C++20 (GCC 13-64) | Accepted | 390 ms | 0 KB |
| 46993808 | Dec/14/2018 09:56 | vjudge2 | I - Hidden Tree | C++17 (GCC 7-32) | Accepted | 389 ms | 1200 KB |
| 54591898 | May/25/2019 11:58 | SMU_01: tanruidd, YJH143, ZZZZone# | I - Hidden Tree | GNU C++11 | Accepted | 374 ms | 19600 KB |
| 46468291 | Dec/02/2018 08:38 | vjudge4 | I - Hidden Tree | GNU C++11 | Accepted | 1201 ms | 13300 KB |
| 94446274 | Oct/02/2020 04:17 | UCF AC: thunderous_reign, carbon_xiii, BiIIy# | I - Hidden Tree | C++17 (GCC 7-32) | Accepted | 3649 ms | 2100 KB |
| 62999201 | Oct/20/2019 13:21 | waynetuinfor | I - Hidden Tree | C++17 (GCC 7-32) | Accepted | 3634 ms | 2200 KB |
| 46705657 | Dec/07/2018 09:56 | mxh1999# | I - Hidden Tree | C++17 (GCC 7-32) | Accepted | 15412 ms | 2400 KB |
| 214745508 | Jul/21/2023 15:38 | Teerth_Kolhi | I - Hidden Tree | C++14 (GCC 6-32) | Accepted | 436 ms | 2000 KB |
| 351576221 | Dec/02/2025 12:52 | GreenKite | I - Hidden Tree | C++23 (GCC 14-64, msys2) | Accepted | 671 ms | 4000 KB |
| 46542511 | Dec/03/2018 15:47 | vjudge3 | I - Hidden Tree | GNU C++11 | Accepted | 3463 ms | 4000 KB |
| 46505565 | Dec/02/2018 14:06 | vjudge3 | I - Hidden Tree | GNU C++11 | Accepted | 810 ms | 13300 KB |
| 350801971 | Nov/27/2025 06:56 | catandcode | I - Hidden Tree | C++17 (GCC 7-32) | Accepted | 561 ms | 0 KB |
| 91446841 | Aug/31/2020 04:36 | _gXX | I - Hidden Tree | C++17 (GCC 7-32) | Accepted | 3634 ms | 5800 KB |
| 126222864 | Aug/18/2021 05:47 | xuziyuan | I - Hidden Tree | C++17 (GCC 9-64) | Accepted | 1138 ms | 8200 KB |
| 300587409 | Jan/12/2025 08:56 | BK_sky | I - Hidden Tree | C++17 (GCC 7-32) | Accepted | 405 ms | 0 KB |
| 351574215 | Dec/02/2025 12:34 | GreenKite | I - Hidden Tree | C++23 (GCC 14-64, msys2) | Accepted | 906 ms | 4100 KB |
| 351575571 | Dec/02/2025 12:46 | GreenKite | I - Hidden Tree | C++23 (GCC 14-64, msys2) | Accepted | 640 ms | 4000 KB |
| 46586891 | Dec/04/2018 16:42 | vjudge2 | I - Hidden Tree | GNU C++11 | Accepted | 390 ms | 1900 KB |
| 46542543 | Dec/03/2018 15:48 | wcf | I - Hidden Tree | GNU C++11 | Accepted | 3478 ms | 4000 KB |
| 46542685 | Dec/03/2018 15:52 | vjudge5 | I - Hidden Tree | GNU C++11 | Accepted | 3182 ms | 4000 KB |
| 61981468 | Oct/06/2019 15:10 | NathanLiu | I - Hidden Tree | C++17 (GCC 7-32) | Accepted | 389 ms | 2000 KB |
| 51678601 | Mar/22/2019 14:40 | La Mala Hora: fkguyx042, rxdoi# | I - Hidden Tree | C++14 (GCC 6-32) | Accepted | 3041 ms | 1200 KB |
| 46542737 | Dec/03/2018 15:53 | vjudge4 | I - Hidden Tree | GNU C++11 | Accepted | 2167 ms | 4000 KB |
| 126247161 | Aug/18/2021 11:47 | ycxtzctietie | I - Hidden Tree | C++14 (GCC 6-32) | Accepted | 1170 ms | 7800 KB |
| 296022567 | Dec/11/2024 15:59 | JosephusWang | I - Hidden Tree | C++20 (GCC 13-64) | Accepted | 781 ms | 12100 KB |
| 66964561 | Dec/15/2019 14:12 | vjudge5 | I - Hidden Tree | C++17 (GCC 7-32) | Accepted | 249 ms | 2000 KB |
| 97072606 | Oct/29/2020 13:38 | alan8585 | I - Hidden Tree | C++14 (GCC 6-32) | Accepted | 2089 ms | 16900 KB |
| 126236555 | Aug/18/2021 09:43 | numberes | I - Hidden Tree | C++14 (GCC 6-32) | Accepted | 1560 ms | 8300 KB |
| 60827355 | Sep/19/2019 07:58 | jeeeerrrpop | I - Hidden Tree | C++17 (GCC 7-32) | Accepted | 15022 ms | 4300 KB |
| 296023038 | Dec/11/2024 16:03 | JosephusWang | I - Hidden Tree | C++20 (GCC 13-64) | Accepted | 328 ms | 12200 KB |
| 300587503 | Jan/12/2025 08:57 | BK_sky | I - Hidden Tree | C++17 (GCC 7-32) | Accepted | 358 ms | 0 KB |
| 58900608 | Aug/16/2019 12:00 | FoodSheep | I - Hidden Tree | C++17 (GCC 7-32) | Accepted | 389 ms | 2200 KB |
| 94256278 | Sep/30/2020 06:02 | UCF Iron: Ahmad, Xylenox, I_love_Harpae# | I - Hidden Tree | C++17 (GCC 9-64) | Accepted | 3946 ms | 1600 KB |
| 97015481 | Oct/28/2020 18:23 | NCTU_Eclipse: RosaRosa, LiPro, coldEr66# | I - Hidden Tree | C++17 (GCC 7-32) | Accepted | 436 ms | 4100 KB |
| 94724505 | Oct/05/2020 02:05 | UCF Kamino: Harpae, SecondThread# | I - Hidden Tree | Java 8 | Accepted | 12152 ms | 0 KB |
| 54709382 | May/27/2019 10:35 | swunHJ | I - Hidden Tree | C++17 (GCC 7-32) | Accepted | 483 ms | 2000 KB |
| 57469999 | Jul/21/2019 20:38 | IPRIT | I - Hidden Tree | C++17 (GCC 7-32) | Accepted | 5038 ms | 1200 KB |
| 57470018 | Jul/21/2019 20:38 | IPRIT | I - Hidden Tree | C++17 (GCC 7-32) | Accepted | 5038 ms | 1200 KB |
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