Manipulating vectors

Vectors in C++ are dynamic arrays that not only store data but offer a suite of operations to manipulate that data, especially when paired with the algorithms provided by the STL. These algorithms allow developers to optimize data movement and transformation tasks with elegance. Let’s delve into the art of manipulating std::vector with some powerful algorithms.

Transforming with std::copy

Imagine you’ve got one vector and wish to copy its elements to another. Simple looping might come to mind, but there’s a more efficient and expressive way: std::copy.

Consider two vectors as shown in the following code:

std::vector<int> source = {1, 2, 3, 4, 5};
std::vector<int> destination(5);

Copying the elements is as straightforward as shown in the following:

std::copy(source.begin(), source.end(), destination.begin());

destination holds {1, 2, 3, 4, 5}. It’s worth noting that the destination vector should have enough...