Have you worked with lambda functions before?

Yes, I have worked with lambda functions in C++. I used them for conveniently defining small functions directly at the call site, for example, for sorting or processing collections. Lambdas allow writing more compact and readable code.

Example of using a lambda function to sort a vector in descending order:

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

int main() {
    std::vector<int> numbers = {5, 2, 9, 1, 5};

    std::sort(numbers.begin(), numbers.end(), [](int a, int b) {
        return a > b; // sort in descending order
    });

    for (int n : numbers) {
        std::cout << n << " ";
    }
    return 0;
}