| # | User | Rating |
|---|---|---|
| 1 | tourist | 3993 |
| 2 | jiangly | 3743 |
| 3 | orzdevinwang | 3707 |
| 4 | Radewoosh | 3627 |
| 5 | jqdai0815 | 3620 |
| 6 | Benq | 3564 |
| 7 | Kevin114514 | 3443 |
| 8 | ksun48 | 3434 |
| 9 | Rewinding | 3397 |
| 10 | Um_nik | 3396 |
| # | User | Contrib. |
|---|---|---|
| 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 |
| 10 | nor | 152 |
I am stuck on this following problem:
Given an undirected tree of n nodes and q queries of type (u,d), for each query you need find the number of simple paths starting from node u and having edge distance <=d.
Constraints:
1<=n,q,u,d<=100000
Any suggestion will be highly appreciated. Thanks.
