Take a look at the tags on this problem:
FFT? DP? bitmask? is this an inside joke that im not getting? why does it seem like for every problem most of the tags are completely fake?
→ Обратите внимание
До соревнования
WorldQuant Round 1 (Codeforces Round 1128, Div. 1 + Div. 2)
21:43:45
Зарегистрироваться »
WorldQuant Round 1 (Codeforces Round 1128, Div. 1 + Div. 2)
21:43:45
Зарегистрироваться »
*есть доп. регистрация
→ Лидеры (рейтинг)
| № | Пользователь | Рейтинг |
|---|---|---|
| 1 | Benq | 3676 |
| 2 | jiangly | 3670 |
| 3 | Kevin114514 | 3657 |
| 4 | maroonrk | 3355 |
| 5 | Um_nik | 3353 |
| 6 | squareOf105 | 3346 |
| 7 | tourist | 3343 |
| 8 | strapple | 3324 |
| 9 | heuristica | 3322 |
| 10 | jiangbowen | 3291 |
| Страны | Города | Организации | Всё → |
→ Лидеры (вклад)
| № | Пользователь | Вклад |
|---|---|---|
| 1 | Qingyu | 158 |
| 2 | nik_exists | 150 |
| 2 | maspy | 150 |
| 4 | AmShZ | 143 |
| 4 | Um_nik | 143 |
| 6 | Errichto | 139 |
| 7 | adamant | 137 |
| 8 | BledDest | 135 |
| 9 | maroonrk | 133 |
| 10 | qwexd | 130 |
→ Найти пользователя
→ Прямой эфир
Codeforces (c) Copyright 2010-2026 Михаил Мирзаянов
Соревнования по программированию 2.0
Время на сервере: 16.10.2026 19:51:16 (g2).
Десктопная версия, переключиться на мобильную.
При поддержке
At least, now I can say that I solved a FFT problem.
there might be lots of solutions to a problem, maybe you can use those algorithms to solve it when you change the limits or sth?
oh i guess changing the problem constraints is fair. i was reading online that 1900+ are allowed to add tags so they could have considered that
even if there is real FFT solution writing it in 1000 problem is just overkill
anyone above 1900 can edit tags, someone probably decided to be very funny about it