在STL集上使用静态与成员查找方法？

#include<iostream>
#include <set>

int main() {
    std::set<int> myset = {1, 2, 3, 4, 5};
    std::set<int>::iterator it = myset.find(3);
    if (it != myset.end()) {
        std::cout << "Element found: " << *it<< std::endl;
    } else {
        std::cout << "Element not found"<< std::endl;
    }
    return 0;
}

#include<iostream>
#include <map>

int main() {
    std::map<int, std::string> mymap = {{1, "one"}, {2, "two"}, {3, "three"}, {4, "four"}, {5, "five"}};
    std::map<int, std::string>::iterator it = mymap.find(3);
    if (it != mymap.end()) {
        std::cout << "Element found: " << it->first << " -> " << it->second<< std::endl;
    } else {
        std::cout << "Element not found"<< std::endl;
    }
    return 0;
}