through map c 2b 2b

1//Since c++17
2for (auto& [key, value]: myMap) {
3    cout << key << " has value " << value << endl;
4}
5//Since c++11
6for (auto& kv : myMap) {
7    cout << kv.first << " has value " << kv.second << endl;
8}

1    for (auto i : m)
2        cout << i.first << "   " << i.second
3             << endl;