Why am i getting WA? my code here. Please help :(
Also i tried to find the editorial. But couldn't find any. Was the editorial ever published?
№ | Пользователь | Рейтинг |
---|---|---|
1 | tourist | 3985 |
2 | jiangly | 3814 |
3 | jqdai0815 | 3682 |
4 | Benq | 3529 |
5 | orzdevinwang | 3526 |
6 | ksun48 | 3517 |
7 | Radewoosh | 3410 |
8 | hos.lyric | 3399 |
9 | ecnerwala | 3392 |
9 | Um_nik | 3392 |
Страны | Города | Организации | Всё → |
№ | Пользователь | Вклад |
---|---|---|
1 | cry | 169 |
2 | maomao90 | 162 |
2 | Um_nik | 162 |
4 | atcoder_official | 161 |
5 | djm03178 | 158 |
6 | -is-this-fft- | 157 |
7 | adamant | 155 |
8 | Dominater069 | 154 |
8 | awoo | 154 |
10 | luogu_official | 150 |
Why am i getting WA? my code here. Please help :(
Also i tried to find the editorial. But couldn't find any. Was the editorial ever published?
Название |
---|
http://codeforces.net/blog/entry/6864. Here's the editorial, but it's on russian.
thanks :) but the translator isn't so good :( can u plz explain the idea?
Let's use two arrays. le[i] = the leftmost index that the sequence a[le[i]], a[le[i] + 1], a[i] — decreases. re[i] = the rightmost index that the sequence a[i], a[i + 1], a[re[i]] — increases. A sequence l,r is ladder if (re[l] >= le[l]).