→ 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.
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Want to solve the contest problems after the official contest ends? Just register for practice and you will be able to submit solutions.
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→ Contest materials
Problem B - Useful Algorithm
Contest status
| # | When | Who | Problem | Lang | Verdict | Time | Memory |
|---|---|---|---|---|---|---|---|
| 194186121 | Feb/19/2023 08:10 | Silver Bullet: czjxyz, installb, AbelCat# | B - Useful Algorithm | C++20 (GCC 11-64) | Accepted | 4148 ms | 543500 KB |
| 188683645 | Jan/10/2023 13:20 | vjudge3 | B - Useful Algorithm | C++20 (GCC 11-64) | Accepted | 4991 ms | 84100 KB |
| 199539629 | Mar/28/2023 16:19 | anpoli99 | B - Useful Algorithm | C++17 (GCC 9-64) | Accepted | 4429 ms | 133200 KB |
| 199539561 | Mar/28/2023 16:18 | anpoli99 | B - Useful Algorithm | C++17 (GCC 9-64) | Accepted | 4071 ms | 275800 KB |
| 199539481 | Mar/28/2023 16:18 | anpoli99 | B - Useful Algorithm | C++17 (GCC 9-64) | Accepted | 4273 ms | 275800 KB |
| 331258945 | Jul/28/2025 10:28 | fishcathu | B - Useful Algorithm | C++23 (GCC 14-64, msys2) | Accepted | 1046 ms | 38900 KB |
| 347491538 | Nov/05/2025 06:44 | yishanyi | B - Useful Algorithm | C++20 (GCC 13-64) | Accepted | 2624 ms | 248800 KB |
| 190707902 | Jan/27/2023 01:09 | lightseba | B - Useful Algorithm | C++20 (GCC 11-64) | Accepted | 1637 ms | 76400 KB |
| 190707953 | Jan/27/2023 01:10 | lightseba | B - Useful Algorithm | C++20 (GCC 11-64) | Accepted | 1762 ms | 76400 KB |
| 193268589 | Feb/12/2023 09:23 | Kuroni | B - Useful Algorithm | C++20 (GCC 11-64) | Accepted | 5147 ms | 166800 KB |
| 190707748 | Jan/27/2023 01:06 | lightseba | B - Useful Algorithm | C++20 (GCC 11-64) | Accepted | 1574 ms | 76400 KB |
| 190707729 | Jan/27/2023 01:05 | lightseba | B - Useful Algorithm | C++20 (GCC 11-64) | Accepted | 2027 ms | 76400 KB |
| 184655549 | Dec/11/2022 03:03 | YaoBIG | B - Useful Algorithm | C++17 (GCC 9-64) | Accepted | 3556 ms | 94600 KB |
| 184654989 | Dec/11/2022 02:41 | YaoBIG | B - Useful Algorithm | C++17 (GCC 9-64) | Accepted | 3759 ms | 94600 KB |
| 187987249 | Jan/05/2023 08:09 | HaccerKat | B - Useful Algorithm | C++20 (GCC 11-64) | Accepted | 4008 ms | 88500 KB |
| 235829818 | Dec/05/2023 13:25 | Sulfox# | B - Useful Algorithm | C++20 (GCC 11-64) | Accepted | 5101 ms | 647400 KB |
| 331321075 | Jul/28/2025 19:00 | Sakuya_maid | B - Useful Algorithm | C++23 (GCC 14-64, msys2) | Accepted | 5858 ms | 432500 KB |
| 331321101 | Jul/28/2025 19:01 | Sakuya_maid | B - Useful Algorithm | C++20 (GCC 13-64) | Accepted | 5858 ms | 432800 KB |
| 331318097 | Jul/28/2025 18:40 | Sakuya_maid | B - Useful Algorithm | C++23 (GCC 14-64, msys2) | Accepted | 5921 ms | 432500 KB |
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