How can I use STL algorithms with iterators in C++?

How can I use STL algorithms with iterators in C++?

You can use STL algorithms like std::sort, std::find, and std::for_each with iterators to manipulate collections.

Can you give me an example of using std::sort with iterators?

Sure! Here's a simple example:

#include <vector>
#include <algorithm>

std::vector<int> vec = {5, 3, 8, 1};
std::sort(vec.begin(), vec.end());

This sorts the vector in ascending order.

What about using std::for_each?

You can use std::for_each to apply a function to each element. For example:

std::for_each(vec.begin(), vec.end(), [](int n) { std::cout << n << ' '; });

This prints each element in the vector.

Are there any performance considerations when using these algorithms?

Yes, performance can vary based on the algorithm and the data structure. Generally, STL algorithms are optimized, but it's good to consider the complexity of operations.