How do I use the find algorithm in C++?

Can you explain how to use the find algorithm in C++?

Sure! The std::find algorithm is used to search for a specific value in a range of elements. You include the header <algorithm> and use it like this: std::find(begin, end, value);.

What headers do I need to include?

You need to include <algorithm> for the std::find function and <vector> if you're using a vector.

Can you give me a code example?

Of course! Here's a simple example:

#include <iostream>
#include <vector>
#include <algorithm>

int main() {
    std::vector<int> vec = {1, 2, 3, 4, 5};
    auto it = std::find(vec.begin(), vec.end(), 3);
    if (it != vec.end()) {
        std::cout << "Found: " << *it << std::endl;
    } else {
        std::cout << "Not found" << std::endl;
    }
}

What if the value is not found?

If the value is not found, std::find will return the end iterator of the range, which you can check against to determine if the value was found.