I wish to find the sequences of length n consisting of exactly k distinct elements. Can't think of any approach to this.
№ | Пользователь | Рейтинг |
---|---|---|
1 | jiangly | 3898 |
2 | tourist | 3840 |
3 | orzdevinwang | 3706 |
4 | ksun48 | 3691 |
5 | jqdai0815 | 3682 |
6 | ecnerwala | 3525 |
7 | gamegame | 3477 |
8 | Benq | 3468 |
9 | Ormlis | 3381 |
10 | maroonrk | 3379 |
Страны | Города | Организации | Всё → |
№ | Пользователь | Вклад |
---|---|---|
1 | cry | 167 |
2 | -is-this-fft- | 165 |
3 | Dominater069 | 160 |
4 | atcoder_official | 159 |
4 | Um_nik | 159 |
6 | djm03178 | 156 |
7 | adamant | 153 |
8 | luogu_official | 149 |
8 | awoo | 149 |
10 | TheScrasse | 146 |
Sequences of length n with exactly k distinct elements
I wish to find the sequences of length n consisting of exactly k distinct elements. Can't think of any approach to this.
Rev. | Язык | Кто | Когда | Δ | Комментарий | |
---|---|---|---|---|---|---|
en2 |
![]() |
saurabhs1206 | 2020-12-08 12:36:04 | 9 | Tiny change: ' find the sequences' -> ' find the count of sequences' | |
en1 |
![]() |
saurabhs1206 | 2020-12-08 12:35:35 | 174 | Initial revision (published) |
Название |
---|