Does anybody have any idea to do operations like multipling and adding to Big integers ? (for example with 100 digits)
acctually i know it can be done in languages like Java but i want to do it in c++ fast enough.
→ Обратите внимание
→ Лидеры (рейтинг)
| № | Пользователь | Рейтинг |
|---|---|---|
| 1 | tourist | 3856 |
| 2 | jiangly | 3747 |
| 3 | orzdevinwang | 3706 |
| 4 | jqdai0815 | 3682 |
| 5 | ksun48 | 3591 |
| 6 | gamegame | 3477 |
| 7 | Benq | 3468 |
| 8 | Radewoosh | 3462 |
| 9 | ecnerwala | 3451 |
| 10 | heuristica | 3431 |
| Страны | Города | Организации | Всё → |
→ Лидеры (вклад)
| № | Пользователь | Вклад |
|---|---|---|
| 1 | cry | 168 |
| 2 | -is-this-fft- | 162 |
| 3 | Dominater069 | 160 |
| 4 | Um_nik | 159 |
| 5 | atcoder_official | 156 |
| 6 | djm03178 | 153 |
| 6 | adamant | 153 |
| 8 | luogu_official | 149 |
| 9 | awoo | 148 |
| 10 | TheScrasse | 146 |
→ Найти пользователя
→ Прямой эфир
Codeforces (c) Copyright 2010-2025 Михаил Мирзаянов
Соревнования по программированию 2.0
Время на сервере: 16.02.2025 20:09:34 (i1).
Десктопная версия, переключиться на мобильную.
При поддержке
You can use fft if you can't apply this you can apply karatsuba (this is for multipling). Adding is simple.
BigInt for C++ by Arpa
thanks!
U can write bignum struct by your own or get a help from blogs in Codeforces. U can read this blog! the blog that Bakry introduced is helpful too!
thanks! this was so helpful.
Big Integer Library by Jane Alam Jan