How to get min or max element in a vector of structures in c++, based on some field in the structure?

Question

How to get min or max element in a vector of structures in c++, based on some field in the structure?

For example:

struct Size {
    int width, height;
}         


        

Answer 1

Use std::min/std::max/std::minmax _element with comparator. http://en.cppreference.com/w/cpp/algorithm/min_element