How do I insert and delete elements in a C++ std::map?

Can you explain how to insert elements into a std::map in C++?

Sure! You can insert elements into a std::map using the insert() function or the subscript operator. For example:

std::map<int, std::string> myMap; myMap.insert({1, "One"}); myMap[2] = "Two";

Both methods will add key-value pairs to the map.

What about deleting elements? How can I remove a key from a std::map?

To delete an element from a std::map, you can use the erase() function. For example:

myMap.erase(1);

This will remove the element with the key '1' from the map.

Are there any other ways to insert or delete elements?

Yes, you can also use the emplace() function to insert elements, which constructs the element in place. For deletion, you can also use iterators with erase().