#include <iostream> #include <string> #include <unordered_map> using namespace std; int main() { unordered_map<string, int> people = {{"John", 32}, {"Adele", 45}, {"Bo", 29}}; people["Jenny"] = 22; // Add a new element people["John"] = 50; // Change the value of John cout << "Jenny is: " << people["Jenny"] << "\n"; cout << "John is: " << people["John"]; return 0; }