After I started to use <bits/stdc++.h> and C++11 my compiler is slowing down. Compilation finishes around 3secs. Is there any way to speed up? I use Ubuntu and Geany. [Sorry for bad English...]
→ Обратите внимание
→ Трансляции
→ Лидеры (рейтинг)
| № | 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 → |
→ Лидеры (вклад)
| № | Пользователь | Вклад |
|---|---|---|
| 1 | cry | 167 |
| 2 | -is-this-fft- | 165 |
| 3 | Dominater069 | 160 |
| 4 | atcoder_official | 159 |
| 4 | Um_nik | 159 |
| 6 | djm03178 | 156 |
| 7 | adamant | 153 |
| 8 | luogu_official | 149 |
| 8 | awoo | 149 |
| 10 | TheScrasse | 146 |
→ Найти пользователя
→ Прямой эфир
Codeforces (c) Copyright 2010-2025 Михаил Мирзаянов
Соревнования по программированию 2.0
Время на сервере: 07.02.2025 16:55:15 (h1).
Десктопная версия, переключиться на мобильную.
При поддержке
"There is no way to speed up compilation time" from the above comment is not correct. Many people use
<bits/stdc++.h>, but few know the real purpose for this file: it is not there to save typing, it is there to save compilation time.By using
stdc++.h, you can create a precompiled header file that includes the whole standard library. Next time you run the compiler, it does not need to parse the standard library headers again — it just reads the precompiled header file instead.You can read how to create and use the precompiled header here: https://gcc.gnu.org/onlinedocs/libstdc++/manual/using_headers.html#manual.intro.using.headers.pre. After this, compilation time of an empty program should be significantly reduced.