#include #include "List.h" int main() { List mylist; List::iterator it; mylist.push_front(5); mylist.push_front(11); mylist.push_front(21); for (it = mylist.begin(); it != mylist.end(); it++) cout << *it << " "; cout << endl; it = mylist.begin(); *it = *it + 12; it++; mylist.insert(it,10); mylist.print_list(); List secondlist(mylist); return 0; }