What are some advanced operations I can perform on C++ std::vector?

What are some advanced operations I can perform on C++ std::vector?

You can perform various advanced operations on std::vector, such as sorting, searching, and modifying elements. Would you like examples of each?

Yes, please provide an example of sorting a vector.

To sort a vector, you can use the std::sort function from the <algorithm> header. For example:

#include <vector>
#include <algorithm>

std::vector<int> vec = {5, 2, 9, 1, 5, 6};
std::sort(vec.begin(), vec.end());

This will sort the vector in ascending order.

How about searching for an element in the vector?

You can use std::find to search for an element. Here's an example:

#include <vector>
#include <algorithm>

std::vector<int> vec = {5, 2, 9, 1, 5, 6};
auto it = std::find(vec.begin(), vec.end(), 9);
if (it != vec.end()) {
    // Element found
}

This will find the element '9' in the vector.

What about modifying elements in the vector?

You can modify elements directly using their index. For example:

vec[0] = 10; // Changes the first element to 10

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