#include <iostream> #include <string> #include <unordered_map> using namespace std; int main() { unordered_map<string, int> people = {{"John", 32}, {"Adele", 45}, {"Bo", 29}}; if (people.find("Jenny") == people.end()) { cout << "Jenny is not in the map"; } else { cout << "Jenny is in the map"; } return 0; }