In honor of Donald Knuth's lecture series on trees, this week's episode of Algorithms Live! will cover trees. More information can be found here: http://algorithms-live.blogspot.com/2016/12/episode-1-trees-and-diameters.html
→ Обратите внимание
До соревнования
Spectral::Cup 2026 Round 2 (Codeforces Round 1100, Div. 1 + Div. 2)
28:18:39
Зарегистрироваться »
Spectral::Cup 2026 Round 2 (Codeforces Round 1100, Div. 1 + Div. 2)
28:18:39
Зарегистрироваться »
*есть доп. регистрация
→ Лидеры (рейтинг)
| № | Пользователь | Рейтинг |
|---|---|---|
| 1 | Benq | 3792 |
| 2 | VivaciousAubergine | 3647 |
| 3 | Kevin114514 | 3611 |
| 4 | jiangly | 3583 |
| 5 | strapple | 3515 |
| 6 | tourist | 3470 |
| 7 | Radewoosh | 3415 |
| 8 | Um_nik | 3376 |
| 9 | maroonrk | 3361 |
| 10 | XVIII | 3345 |
| Страны | Города | Организации | Всё → |
→ Лидеры (вклад)
| № | Пользователь | Вклад |
|---|---|---|
| 1 | Qingyu | 162 |
| 2 | adamant | 148 |
| 3 | Um_nik | 146 |
| 4 | Dominater069 | 143 |
| 5 | errorgorn | 141 |
| 6 | cry | 138 |
| 7 | Proof_by_QED | 136 |
| 8 | YuukiS | 135 |
| 9 | chromate00 | 134 |
| 10 | soullless | 133 |
→ Найти пользователя
→ Прямой эфир
Codeforces (c) Copyright 2010-2026 Михаил Мирзаянов
Соревнования по программированию 2.0
Время на сервере: 22.05.2026 13:16:22 (j1).
Десктопная версия, переключиться на мобильную.
При поддержке
Humble request: Please do Episode 2 on Centroid Decomposition.
Episode 2 will feature our first guest and is being planned. I will cover centroid decomposition in the future though. :) I will cover finding centroids this week and many of the prerequisites for centroid decomposition.
How to find remoteness of all nodes of a tree in one DFS ?
Yes. You can modify your DFS to also keep track of the longest path coming in through the parent. Then you just have one extra path to stitch to a subtree path.
great work
Great work! A very good initiative. Keep it up...