😎 Hint: Оптимизация std::vectorЗнаете ли вы

Библиотека C/C++ разработчика | cpp, boost, qt

😎 Hint: Оптимизация std::vector

Знаете ли вы, что можно значительно ускорить работу с вектором, если заранее выделить память?

Метод reserve() позволяет избежать многократных перераспределений памяти:

std::vector v;
v.reserve(1000); // выделяем память сразу

for(int i = 0; i < 1000; ++i) { 
    v.push_back(i); // не будет перевыделений памяти
}

Это может в разы увеличить работу с большими векторами.

Библиотека C/C++ разработчика #буст

www.tg-me.com/vn/Библиотека C C разработчика | cpp boost qt/com.cppproglib/5687

3.9K viewsedited May 13 at 09:08

tg-me.com/cppproglib/5687

Create: 2025-05-13
Last Update: 2025-06-01 12:36:30

std::vector v;
v.reserve(1000); // выделяем память сразу

for(int i = 0; i < 1000; ++i) { 
    v.push_back(i); // не будет перевыделений памяти
}

Это может в разы увеличить работу с большими векторами.

Библиотека C/C++ разработчика #буст

BY Библиотека C/C++ разработчика | cpp, boost, qt

Warning: Undefined variable $i in /var/www/tg-me/post.php on line 283

Share with your friend now:
tg-me.com/cppproglib/5687

Библиотека C C разработчика | cpp boost qt Telegram | DID YOU KNOW?

Why Telegram?

Telegram has no known backdoors and, even though it is come in for criticism for using proprietary encryption methods instead of open-source ones, those have yet to be compromised. While no messaging app can guarantee a 100% impermeable defense against determined attackers, Telegram is vulnerabilities are few and either theoretical or based on spoof files fooling users into actively enabling an attack.

NEWS: Telegram supports Facetime video calls NOW!

Secure video calling is in high demand. As an alternative to Zoom, many people are using end-to-end encrypted apps such as WhatsApp, FaceTime or Signal to speak to friends and family face-to-face since coronavirus lockdowns started to take place across the world. There’s another option—secure communications app Telegram just added video calling to its feature set, available on both iOS and Android. The new feature is also super secure—like Signal and WhatsApp and unlike Zoom (yet), video calls will be end-to-end encrypted.