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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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→ Status filter
→ Contest materials
Problem I - Invitation
Contest status
| # | When | Who | Problem | Lang | Verdict | Time | Memory |
|---|---|---|---|---|---|---|---|
| 177687581 | Oct/23/2022 21:48 |
 ckiseki National Taiwan University |
I - Invitation | Unknown | Accepted | 0 ms | 0 KB |
| 177688147 | Oct/23/2022 21:48 |
std_abs National Taiwan University |
I - Invitation | Unknown | Accepted | 0 ms | 0 KB |
| 177688460 | Oct/23/2022 21:48 |
8BQube National Taiwan University |
I - Invitation | Unknown | Accepted | 0 ms | 0 KB |
| 223359139 | Sep/14/2023 16:56 | MSS Eggdrop: mhy908, Eunha, SongC# | I - Invitation | PyPy 3-64 | Accepted | 1372 ms | 47000 KB |
| 182133708 | Nov/22/2022 16:42 | 810848 | I - Invitation | C++20 (GCC 11-64) | Accepted | 529 ms | 14600 KB |
| 187115072 | Dec/29/2022 11:26 | ntu_vjudge_1 | I - Invitation | C++17 (GCC 9-64) | Accepted | 498 ms | 14700 KB |
| 203461382 | Apr/25/2023 19:11 | Gorgo | I - Invitation | C++20 (GCC 11-64) | Accepted | 2791 ms | 4000 KB |
| 187115093 | Dec/29/2022 11:26 | ntu_vjudge_2 | I - Invitation | C++17 (GCC 9-64) | Accepted | 498 ms | 14700 KB |
| 236290167 | Dec/08/2023 09:01 | fengtingting fan club: chengcheng5677, cmk666, NetSpeed1# | I - Invitation | C++17 (GCC 7-32) | Accepted | 701 ms | 23600 KB |
| 181261412 | Nov/17/2022 06:42 | 我永远喜欢叶金毅: Yamamoto_1919, AcFunction# | I - Invitation | C++20 (GCC 11-64) | Accepted | 249 ms | 17800 KB |
| 203459247 | Apr/25/2023 18:53 | Gorgo | I - Invitation | C++20 (GCC 11-64) | Accepted | 2652 ms | 3900 KB |
| 187115746 | Dec/29/2022 11:34 | ntu_vjudge_1 | I - Invitation | C++17 (GCC 9-64) | Accepted | 171 ms | 14700 KB |
| 178649417 | Oct/31/2022 09:46 | destination# | I - Invitation | C++20 (GCC 11-64) | Accepted | 280 ms | 86600 KB |
| 178668039 | Oct/31/2022 13:20 | SilentKiseki | I - Invitation | C++20 (GCC 11-64) | Accepted | 234 ms | 7700 KB |
| 187411210 | Dec/31/2022 09:06 | ntu_vjudge_2 | I - Invitation | C++17 (GCC 9-64) | Accepted | 327 ms | 13400 KB |
| 286629254 | Oct/19/2024 05:17 | Gabp | I - Invitation | C++20 (GCC 13-64) | Accepted | 186 ms | 14900 KB |
| 286400471 | Oct/17/2024 18:06 | DippleThree | I - Invitation | C++20 (GCC 13-64) | Accepted | 733 ms | 24400 KB |
| 355308419 | Dec/27/2025 17:16 | Serendipity__ | I - Invitation | C++23 (GCC 14-64, msys2) | Accepted | 218 ms | 11400 KB |
| 253183420 | Mar/25/2024 12:13 | Celebrate | I - Invitation | C++14 (GCC 6-32) | Accepted | 358 ms | 35200 KB |
| 181202110 | Nov/16/2022 15:52 | IdyllicWorld: WinterSpell, bestFy, _Ezreal# | I - Invitation | C++20 (GCC 11-64) | Accepted | 202 ms | 26300 KB |
| 334202311 | Aug/17/2025 02:46 | m1tu | I - Invitation | C++23 (GCC 14-64, msys2) | Accepted | 217 ms | 14200 KB |
| 206677575 | May/20/2023 22:10 | MarcosK | I - Invitation | C++17 (GCC 9-64) | Accepted | 202 ms | 17200 KB |
| 206677735 | May/20/2023 22:12 | MarcosK | I - Invitation | C++17 (GCC 9-64) | Accepted | 249 ms | 17200 KB |
| 223824118 | Sep/18/2023 13:51 | Syf2020 | I - Invitation | C++20 (GCC 11-64) | Accepted | 374 ms | 18500 KB |
| 180259226 | Nov/10/2022 06:08 | IOI2023的获奖者: socpite, SanguineChameleon, TranGiaHuy# | I - Invitation | C++20 (GCC 11-64) | Accepted | 576 ms | 17200 KB |
| 340081774 | Sep/23/2025 23:43 | pgoq | I - Invitation | C++23 (GCC 14-64, msys2) | Accepted | 437 ms | 38300 KB |
| 339286736 | Sep/18/2025 19:10 | Tideology: hengliao, guagua0407, iantsai0616# | I - Invitation | C++20 (GCC 13-64) | Accepted | 218 ms | 12300 KB |
| 221885446 | Sep/05/2023 06:16 | DerekYeh | I - Invitation | C++20 (GCC 11-64) | Accepted | 187 ms | 37400 KB |
| 392970601 | Oct/02/2026 17:57 | BiggestOtaku | I - Invitation | C++20 (GCC 13-64) | Accepted | 453 ms | 9800 KB |
| 231545410 | Nov/06/2023 09:25 | garam1732 | I - Invitation | C++20 (GCC 11-64) | Accepted | 577 ms | 30600 KB |
| 390158090 | Sep/10/2026 06:35 | akagi_yuu | I - Invitation | C++23 (GCC 14-64, msys2) | Accepted | 343 ms | 13800 KB |
| 221886916 | Sep/05/2023 06:45 | DerekYeh | I - Invitation | C++20 (GCC 11-64) | Accepted | 171 ms | 12800 KB |
| 262449342 | May/25/2024 05:30 | n_o_n_o_n# | I - Invitation | C++17 (GCC 7-32) | Accepted | 921 ms | 11400 KB |
| 334202396 | Aug/17/2025 02:50 | m1tu | I - Invitation | C++23 (GCC 14-64, msys2) | Accepted | 296 ms | 139900 KB |
| 338224255 | Sep/12/2025 17:37 | vanwij | I - Invitation | C++20 (GCC 13-64) | Accepted | 749 ms | 26400 KB |
| 179955294 | Nov/07/2022 13:44 | waynetuinfor | I - Invitation | C++17 (GCC 9-64) | Accepted | 218 ms | 11300 KB |
| 181219969 | Nov/16/2022 18:35 | Red_rainOwO | I - Invitation | C++17 (GCC 7-32) | Accepted | 483 ms | 11900 KB |
| 337736475 | Sep/09/2025 13:24 | Kirill22# | I - Invitation | C++23 (GCC 14-64, msys2) | Accepted | 202 ms | 5500 KB |
| 338721141 | Sep/15/2025 15:50 | CSQ31 | I - Invitation | C++23 (GCC 14-64, msys2) | Accepted | 639 ms | 29900 KB |
| 262458966 | May/25/2024 07:53 | n_o_n_o_n | I - Invitation | C++20 (GCC 13-64) | Accepted | 577 ms | 12200 KB |
| 389405992 | Sep/05/2026 01:27 | ezraft | I - Invitation | C++20 (GCC 13-64) | Accepted | 640 ms | 27400 KB |
| 338720791 | Sep/15/2025 15:48 | 2beatdown: alphabe, CSQ31, din2009siuc# | I - Invitation | C++23 (GCC 14-64, msys2) | Accepted | 452 ms | 30700 KB |
| 334201133 | Aug/17/2025 02:02 | m1tu | I - Invitation | C++23 (GCC 14-64, msys2) | Accepted | 265 ms | 140700 KB |
| 178669444 | Oct/31/2022 13:35 | amokrousov | I - Invitation | C++17 (GCC 7-32) | Accepted | 607 ms | 19900 KB |
| 304464206 | Feb/04/2025 23:12 | crowdforces | I - Invitation | C++20 (GCC 13-64) | Accepted | 202 ms | 4000 KB |
| 223380495 | Sep/14/2023 19:14 | warner1129 | I - Invitation | C++20 (GCC 11-64) | Accepted | 233 ms | 14100 KB |
| 330973837 | Jul/26/2025 17:14 | KaiKaKa | I - Invitation | C++23 (GCC 14-64, msys2) | Accepted | 390 ms | 24800 KB |
| 228504405 | Oct/17/2023 10:02 | yijan | I - Invitation | C++20 (GCC 11-64) | Accepted | 327 ms | 111600 KB |
| 212495342 | Jul/07/2023 06:07 | John_69 | I - Invitation | C++17 (GCC 7-32) | Accepted | 919 ms | 112300 KB |
| 181881601 | Nov/21/2022 15:46 | coldEr66 | I - Invitation | C++17 (GCC 9-64) | Accepted | 1200 ms | 46900 KB |
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