Can you give me the easy and understandable implementation of Miller Rabin in C++?
# | 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 | 155 |
8 | TheScrasse | 154 |
9 | Dominater069 | 153 |
10 | djm03178 | 152 |
Name |
---|
https://cp-algorithms.com/algebra/primality_tests.html#toc-tgt-2
but it gives wrong output in some cases. Example: 999999999999999989 its a prime number but the output is its a composite number.
Are you sure? I just tried it, and
MillerRabin(999999999999999989LL)
returnstrue
, indicating that it is probably prime.You must made an error calling the function (maybe you forgot to mark it as a long long number?).
Also, if you want to go safe, just use the deterministic Miller-Rabin code, from the next section.