Is there any prime number larger than 998244353 which is such that we can apply NTT on arrays of size up to 2^19 and the prime number is greater than 1e11
№ | Пользователь | Рейтинг |
---|---|---|
1 | jiangly | 3898 |
2 | tourist | 3840 |
3 | orzdevinwang | 3706 |
4 | ksun48 | 3691 |
5 | jqdai0815 | 3682 |
6 | ecnerwala | 3525 |
7 | gamegame | 3477 |
8 | Benq | 3468 |
9 | Ormlis | 3381 |
10 | maroonrk | 3379 |
Страны | Города | Организации | Всё → |
№ | Пользователь | Вклад |
---|---|---|
1 | cry | 168 |
2 | -is-this-fft- | 165 |
3 | Dominater069 | 161 |
4 | Um_nik | 159 |
4 | atcoder_official | 159 |
6 | djm03178 | 157 |
7 | adamant | 153 |
8 | luogu_official | 150 |
9 | awoo | 149 |
10 | TheScrasse | 146 |
Is there any prime number larger than 998244353 which is such that we can apply NTT on arrays of size up to 2^19 and the prime number is greater than 1e11
Название |
---|
Any prime that is greater than $$$10^{11}$$$ and is in the form of $$$k \times 2^{19}+1$$$, where $$$k$$$ is an integer, should fit your requirements.
Note that $$$998244353 = 119 \times 2^{23}+1$$$.
Why did gray guy need FFT? Go learn bubble sort
$$$100000595969$$$ is the smallest prime $$$p$$$ above $$$10^{11}$$$ with $$$p \equiv 1 \pmod{2^{19}}$$$ (found with a simple python3 session). The smallest primitive root is $$$3$$$.