#include #include #include using namespace std;void show(const char *msg, map mp);int main() { map m; m.insert(pair("A", 100)); m.insert(pair("G", 300)); m.insert(pair("B", 200)); // Create another map that is the same as the first. map m2(m); show("Contents of m2: ", m2); // Compare two maps. if(m == m2) cout << "m and m2 are equivalent.\n\n"; return 0;}// Display the contents of a map by using an iterator.void show(const char *msg, map mp) { map::iterator itr; cout << msg << endl; for(itr=mp.begin(); itr != mp.end(); ++itr) cout << " " << itr->first << ", " << itr->second << endl; cout << endl;}