How to solve http://codeforces.me/contest/242/problem/E problem with square root decompositatio?
№ | Пользователь | Рейтинг |
---|---|---|
1 | tourist | 4009 |
2 | jiangly | 3823 |
3 | Benq | 3738 |
4 | Radewoosh | 3633 |
5 | jqdai0815 | 3620 |
6 | orzdevinwang | 3529 |
7 | ecnerwala | 3446 |
8 | Um_nik | 3396 |
9 | ksun48 | 3390 |
10 | gamegame | 3386 |
Страны | Города | Организации | Всё → |
№ | Пользователь | Вклад |
---|---|---|
1 | cry | 167 |
2 | Um_nik | 163 |
3 | maomao90 | 162 |
3 | atcoder_official | 162 |
5 | adamant | 159 |
6 | -is-this-fft- | 158 |
7 | awoo | 156 |
8 | TheScrasse | 154 |
9 | Dominater069 | 153 |
9 | nor | 153 |
How to solve http://codeforces.me/contest/242/problem/E problem with square root decompositatio?
You are given a tree,number X and each node have a number on it.You have to find some nodes a1,a2,a3 ... ,an such a2 is child of a1 ,a3 is child of a2,...an is child of an - 1 and a1 + a2 + ... + an closest number to X.We say x is child of y if it's in subtree with root in y. This problem was on Serbian state competition 2014. for seniors,could you give me any hints or pseudocode?
Название |
---|