→ 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
Problem A - AD 2020
Contest status
| # | When | Who | Problem | Lang | Verdict | Time | Memory |
|---|---|---|---|---|---|---|---|
| 149036281 | Mar/10/2022 04:05 | Nyir | A - AD 2020 | C++17 (GCC 7-32) | Accepted | 779 ms | 800 KB |
| 153632922 | Apr/14/2022 14:22 | Omnitris | A - AD 2020 | C++17 (GCC 7-32) | Accepted | 93 ms | 400 KB |
| 125552840 | Aug/11/2021 10:48 | vjudge2 | A - AD 2020 | MS C++ 2017 | Accepted | 561 ms | 3700 KB |
| 96851131 | Oct/27/2020 14:28 | vjudge2 | A - AD 2020 | GNU C++11 | Accepted | 451 ms | 200 KB |
| 259295794 | May/03/2024 07:15 | vjudge3 | A - AD 2020 | C++20 (GCC 13-64) | Accepted | 608 ms | 11800 KB |
| 96050767 | Oct/20/2020 11:59 | vjudge1 | A - AD 2020 | C++17 (GCC 9-64) | Accepted | 998 ms | 0 KB |
| 96364865 | Oct/22/2020 16:13 | MissingMoon | A - AD 2020 | GNU C++11 | Accepted | 265 ms | 5100 KB |
| 96500148 | Oct/24/2020 09:37 | out111# | A - AD 2020 | C++17 (GCC 7-32) | Accepted | 311 ms | 500 KB |
| 170358870 | Aug/31/2022 10:52 | vjudge3 | A - AD 2020 | C++20 (GCC 11-64) | Accepted | 717 ms | 41500 KB |
| 332432848 | Aug/05/2025 05:00 | Shawnwu | A - AD 2020 | C++20 (GCC 13-64) | Accepted | 171 ms | 39200 KB |
| 220113574 | Aug/24/2023 09:47 | 11111: nianzi, T3T____# | A - AD 2020 | C++20 (GCC 11-64) | Accepted | 202 ms | 57700 KB |
| 96033154 | Oct/20/2020 06:28 | hlw123 | A - AD 2020 | C++17 (GCC 7-32) | Accepted | 124 ms | 0 KB |
| 225692153 | Sep/28/2023 20:47 | hyhsdsg | A - AD 2020 | C++20 (GCC 11-64) | Accepted | 826 ms | 0 KB |
| 243350183 | Jan/26/2024 09:02 | vjudge5 | A - AD 2020 | Clang++17 Diagnostics | Accepted | 265 ms | 31900 KB |
| 327085591 | Jul/02/2025 15:32 | Lionel_code | A - AD 2020 | C++20 (GCC 13-64) | Accepted | 343 ms | 164400 KB |
| 180175912 | Nov/09/2022 12:13 | vjudge1 | A - AD 2020 | C++20 (GCC 11-64) | Accepted | 998 ms | 39100 KB |
| 243356881 | Jan/26/2024 09:58 | vjudge4 | A - AD 2020 | C++20 (GCC 11-64) | Accepted | 951 ms | 800 KB |
| 96034605 | Oct/20/2020 07:11 | hlw123 | A - AD 2020 | GNU C++11 | Accepted | 93 ms | 0 KB |
| 96034619 | Oct/20/2020 07:11 | hlw123 | A - AD 2020 | C++17 (GCC 7-32) | Accepted | 109 ms | 100 KB |
| 120769363 | Jun/28/2021 05:49 | K-ON BU(滑滑蛋): AlexPanda, cxaphoenix# | A - AD 2020 | C++17 (GCC 7-32) | Accepted | 748 ms | 100 KB |
| 96034744 | Oct/20/2020 07:15 | hlw123 | A - AD 2020 | C++17 (GCC 7-32) | Accepted | 108 ms | 0 KB |
| 96033883 | Oct/20/2020 06:48 | hlw123 | A - AD 2020 | C++17 (GCC 7-32) | Accepted | 124 ms | 100 KB |
| 96850175 | Oct/27/2020 14:17 | vjudge4 | A - AD 2020 | C++17 (GCC 9-64) | Accepted | 811 ms | 165100 KB |
| 96923972 | Oct/27/2020 19:33 | vjudge1 | A - AD 2020 | C++17 (GCC 7-32) | Accepted | 670 ms | 0 KB |
| 96033404 | Oct/20/2020 06:35 | hlw123 | A - AD 2020 | C++17 (GCC 7-32) | Accepted | 124 ms | 0 KB |
| 127155381 | Aug/27/2021 06:44 | vjudge1 | A - AD 2020 | C++14 (GCC 6-32) | Accepted | 312 ms | 3700 KB |
| 96844920 | Oct/27/2020 13:03 | vjudge2 | A - AD 2020 | GNU C++11 | Accepted | 997 ms | 138100 KB |
| 155379587 | Apr/30/2022 13:18 | vjudge2 | A - AD 2020 | C++20 (GCC 11-64) | Accepted | 857 ms | 0 KB |
| 153632057 | Apr/14/2022 14:11 | vjudge2 | A - AD 2020 | C++17 (GCC 7-32) | Accepted | 108 ms | 400 KB |
| 315244301 | Apr/13/2025 09:30 | WA Croakers: AmiracleTa, HurtinLuis, Cedar_Z# | A - AD 2020 | C++23 (GCC 14-64, msys2) | Accepted | 233 ms | 9000 KB |
| 180184384 | Nov/09/2022 13:47 | vjudge1 | A - AD 2020 | Clang++17 Diagnostics | Accepted | 389 ms | 32800 KB |
| 225733549 | Sep/29/2023 08:01 | vjudge5 | A - AD 2020 | C++20 (GCC 11-64) | Accepted | 139 ms | 15200 KB |
| 243377765 | Jan/26/2024 12:51 | vjudge2 | A - AD 2020 | C++17 (GCC 7-32) | Accepted | 795 ms | 117500 KB |
| 254779352 | Apr/03/2024 04:01 | jiaxun: xu826281112, widsnoy_rs# | A - AD 2020 | C++17 (GCC 7-32) | Accepted | 812 ms | 400 KB |
| 284985769 | Oct/09/2024 07:26 | vjudge1 | A - AD 2020 | C++20 (GCC 13-64) | Accepted | 218 ms | 100 KB |
| 202017689 | Apr/14/2023 07:57 | fangt | A - AD 2020 | C++17 (GCC 7-32) | Accepted | 530 ms | 83600 KB |
| 96861477 | Oct/27/2020 16:25 | vjudge4 | A - AD 2020 | GNU C++11 | Accepted | 811 ms | 103400 KB |
| 155386667 | Apr/30/2022 14:54 | vjudge5 | A - AD 2020 | C++20 (GCC 11-64) | Accepted | 873 ms | 0 KB |
| 96352750 | Oct/22/2020 13:53 | St.Lovaer# | A - AD 2020 | C++14 (GCC 6-32) | Accepted | 156 ms | 15700 KB |
| 96354176 | Oct/22/2020 14:11 | vjudge3 | A - AD 2020 | C++17 (GCC 7-32) | Accepted | 139 ms | 100 KB |
| 100501923 | Dec/06/2020 11:16 | vjudge2 | A - AD 2020 | GNU C++11 | Accepted | 93 ms | 1000 KB |
| 358188032 | Jan/17/2026 10:16 | Time17 | A - AD 2020 | C++20 (GCC 13-64) | Accepted | 296 ms | 16300 KB |
| 164683852 | Jul/18/2022 09:15 | vjudge3 | A - AD 2020 | C++17 (GCC 9-64) | Accepted | 374 ms | 900 KB |
| 117073659 | May/23/2021 10:51 | vjudge1 | A - AD 2020 | C++17 (GCC 7-32) | Accepted | 109 ms | 400 KB |
| 199786906 | Mar/30/2023 09:16 | vjudge5 | A - AD 2020 | C++17 (GCC 9-64) | Accepted | 343 ms | 16100 KB |
| 113144754 | Apr/16/2021 08:22 | ArWhyAn | A - AD 2020 | C++17 (GCC 7-32) | Accepted | 108 ms | 0 KB |
| 243355205 | Jan/26/2024 09:45 | vjudge1 | A - AD 2020 | C++20 (GCC 11-64) | Accepted | 187 ms | 0 KB |
| 272718701 | Jul/26/2024 16:54 | vjudge.2 | A - AD 2020 | C++20 (GCC 13-64) | Accepted | 202 ms | 0 KB |
| 384192524 | Jul/25/2026 14:25 | GerCapt_1235 | A - AD 2020 | C++17 (GCC 7-32) | Accepted | 890 ms | 33300 KB |
| 113591006 | Apr/20/2021 10:55 | vjudge1 | A - AD 2020 | C++17 (GCC 7-32) | Accepted | 155 ms | 100 KB |
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