How do I use vector reserve in C++11?

What is the purpose of using vector reserve in C++11?

The reserve function in C++11 is used to allocate memory for a vector without changing its size, improving performance.

How do I implement vector reserve in my code?

You can use it like this: myVector.reserve(n); where n is the number of elements you expect to add.

Does using reserve affect the size of the vector?

No, reserve only allocates memory. The size of the vector remains unchanged until you add elements.

When should I use vector reserve?

Use reserve when you know the number of elements you'll be adding to avoid multiple reallocations, enhancing performance.