Knowing the fact that 1D Fenwick Trees can be built in linear time, I am assuming that the 2D version can be built in quadratic time. I didn't manage to find anything about this. Can you help me with some links/ideas?
# | User | Rating |
---|---|---|
1 | tourist | 4009 |
2 | jiangly | 3839 |
3 | Radewoosh | 3646 |
4 | jqdai0815 | 3620 |
4 | Benq | 3620 |
6 | orzdevinwang | 3612 |
7 | Geothermal | 3569 |
7 | cnnfls_csy | 3569 |
9 | ecnerwala | 3494 |
10 | Um_nik | 3396 |
# | User | Contrib. |
---|---|---|
1 | Um_nik | 164 |
2 | maomao90 | 160 |
3 | -is-this-fft- | 159 |
4 | atcoder_official | 158 |
4 | awoo | 158 |
4 | cry | 158 |
7 | adamant | 155 |
8 | nor | 154 |
9 | TheScrasse | 153 |
10 | maroonrk | 152 |
Knowing the fact that 1D Fenwick Trees can be built in linear time, I am assuming that the 2D version can be built in quadratic time. I didn't manage to find anything about this. Can you help me with some links/ideas?
Hello, everyone.
I am organizing my first contest and I would really appreciate your feedback. All the details about the contest are on the sign-up page. A rough estimate of the difficulties of the tasks would be [800-2000]. Solutions are accepted only in C++. Feel free to ask any questions in the comment section or via a private talk.
UPD1: I added java, C and python.
UPD2: Thank you for attending and congratulations to everybody! I am eager to hear your impressions.
https://www.hackerrank.com/contests/summer-challange/challenges/a-horse-race/editorial
https://www.hackerrank.com/contests/summer-challange/challenges/b-tables/editorial
https://www.hackerrank.com/contests/summer-challange/challenges/c-postcodes/editorial
https://www.hackerrank.com/contests/summer-challange/challenges/d-city-hall/editorial
https://www.hackerrank.com/contests/summer-challange/challenges/e-01/editorial
Name |
---|