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→ 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 - Echoes
Contest status
| # | When | Who | Problem | Lang | Verdict |
|---|---|---|---|---|---|
| 348315792 | Nov/10/2025 18:26 | barbie | A - Echoes | C++23 (GCC 14-64, msys2) | Perfect result: 100 points |
| 347314611 | Nov/03/2025 22:05 | PokemonMaster | A - Echoes | C++23 (GCC 14-64, msys2) | Perfect result: 100 points |
| 388585141 | Aug/27/2026 18:00 | nickolasarapidis# | A - Echoes | C++17 (GCC 7-32) | Perfect result: 100 points |
| 389185351 | Sep/02/2026 14:20 | pkse | A - Echoes | C++20 (GCC 13-64) | Perfect result: 100 points |
| 391618718 | Sep/22/2026 13:48 | kotoulaanne | A - Echoes | C++17 (GCC 7-32) | Perfect result: 100 points |
| 387789539 | Aug/20/2026 15:06 | tish0 | A - Echoes | C++20 (GCC 13-64) | Perfect result: 100 points |
| 390902737 | Sep/16/2026 11:42 | trraian# | A - Echoes | C++23 (GCC 14-64, msys2) | Perfect result: 100 points |
| 395092111 | Oct/18/2026 15:23 | PokemonMasterDad# | A - Echoes | C++23 (GCC 14-64, msys2) | Perfect result: 100 points |
| 395095282 | Oct/18/2026 16:03 | PokemonMasterDad# | A - Echoes | C++23 (GCC 14-64, msys2) | Perfect result: 100 points |
| 395186825 | Oct/19/2026 11:18 | PokemonMasterDad | A - Echoes | C++23 (GCC 14-64, msys2) | Perfect result: 100 points |
| 387703692 | Aug/19/2026 19:07 | sash01 | A - Echoes | C++23 (GCC 14-64, msys2) | Perfect result: 100 points |
| 393107475 | Oct/03/2026 21:25 | ziewacz | A - Echoes | C++17 (GCC 7-32) | Perfect result: 100 points |
| 388119202 | Aug/23/2026 12:07 | Teaoa# | A - Echoes | C++23 (GCC 14-64, msys2) | Perfect result: 100 points |
| 347561095 | Nov/05/2025 16:50 | sofiaklim | A - Echoes | C++20 (GCC 13-64) | Perfect result: 100 points |
| 347313780 | Nov/03/2025 21:57 | PokemonMasterDad | A - Echoes | C++23 (GCC 14-64, msys2) | Perfect result: 100 points |
| 391406853 | Sep/21/2026 13:18 | mhaer# | A - Echoes | C++23 (GCC 14-64, msys2) | Perfect result: 100 points |
| 353100869 | Dec/11/2025 20:50 | abbos_abdusattorov | A - Echoes | C++23 (GCC 14-64, msys2) | Perfect result: 100 points |
| 391327530 | Sep/20/2026 15:55 | Kris_tina2011 | A - Echoes | C++20 (GCC 13-64) | Perfect result: 100 points |
| 356491018 | Jan/05/2026 14:40 | litvinas# | A - Echoes | C++23 (GCC 14-64, msys2) | Perfect result: 100 points |
| 391404413 | Sep/21/2026 12:50 | Tuzah# | A - Echoes | C++23 (GCC 14-64, msys2) | Perfect result: 100 points |
| 391144122 | Sep/18/2026 17:47 | Senorita | A - Echoes | C++17 (GCC 7-32) | Perfect result: 100 points |
| 391302258 | Sep/20/2026 11:46 | moha1111 | A - Echoes | C++23 (GCC 14-64, msys2) | Perfect result: 100 points |
| 347559827 | Nov/05/2025 16:34 | denga1004# | A - Echoes | C++20 (GCC 13-64) | Perfect result: 100 points |
| 354618232 | Dec/22/2025 23:34 | An7-ik4aR1an7- | A - Echoes | C++23 (GCC 14-64, msys2) | Perfect result: 100 points |
| 347314202 | Nov/03/2025 22:01 | PokemonMaster | A - Echoes | C++23 (GCC 14-64, msys2) | Perfect result: 100 points |
| 347314019 | Nov/03/2025 22:00 | PokemonMasterDad | A - Echoes | C++23 (GCC 14-64, msys2) | Perfect result: 100 points |
| 347918233 | Nov/07/2025 20:49 | dimastrakhal# | A - Echoes | C++23 (GCC 14-64, msys2) | Perfect result: 100 points |
| 391412412 | Sep/21/2026 14:23 | zwhea | A - Echoes | C++23 (GCC 14-64, msys2) | Perfect result: 100 points |
| 391351659 | Sep/20/2026 20:13 | spr1ng_and_a_st0rm | A - Echoes | C++17 (GCC 7-32) | Perfect result: 100 points |
| 391318084 | Sep/20/2026 14:20 | Kris_tina2011 | A - Echoes | C++20 (GCC 13-64) | Perfect result: 100 points |
| 391004401 | Sep/17/2026 12:18 | Mefe123# | A - Echoes | C++17 (GCC 7-32) | Perfect result: 100 points |
| 390818427 | Sep/15/2026 14:50 | happyrebecca | A - Echoes | C++23 (GCC 14-64, msys2) | Perfect result: 100 points |
| 356413686 | Jan/04/2026 19:31 | Daki-sa# | A - Echoes | C++23 (GCC 14-64, msys2) | Perfect result: 100 points |
| 347919505 | Nov/07/2025 21:00 | farkon00 | A - Echoes | C++20 (GCC 13-64) | Perfect result: 100 points |
| 391710392 | Sep/23/2026 00:02 | muntoiu | A - Echoes | C++17 (GCC 7-32) | Perfect result: 100 points |
| 347309512 | Nov/03/2025 21:23 | PokemonMasterDad | A - Echoes | C++23 (GCC 14-64, msys2) | Perfect result: 100 points |
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