Given an array of length n (n<= 5*10^5) and a number k (k<=10^3), We need to count number of pairs in array whose bitwise and is greater than k. Please share your approach, as I am not able to think the effiecient solution.
№ | Пользователь | Рейтинг |
---|---|---|
1 | tourist | 4009 |
2 | jiangly | 3773 |
3 | Radewoosh | 3646 |
4 | ecnerwala | 3624 |
5 | jqdai0815 | 3620 |
5 | Benq | 3620 |
7 | orzdevinwang | 3612 |
8 | Geothermal | 3569 |
8 | cnnfls_csy | 3569 |
10 | Um_nik | 3396 |
Страны | Города | Организации | Всё → |
№ | Пользователь | Вклад |
---|---|---|
1 | Um_nik | 163 |
2 | cry | 161 |
3 | maomao90 | 160 |
4 | -is-this-fft- | 159 |
5 | awoo | 158 |
6 | atcoder_official | 157 |
7 | adamant | 155 |
8 | nor | 154 |
9 | maroonrk | 152 |
10 | Dominater069 | 148 |
Given an array of length n (n<= 5*10^5) and a number k (k<=10^3), We need to count number of pairs in array whose bitwise and is greater than k. Please share your approach, as I am not able to think the effiecient solution.
Название |
---|
Isn't this the classic trie data structure problem?
I appreciate at least you tried to share some knowledge on this topic but suppose you asked a problem and someone replied that isn't it a classical FFT problem, same sounds to me but I will be glad if u can share the link if this is a classical trie ds problem because I was not able to find this on google.
There's a very similar problem here and here.