Eroare de compilare: user.cpp:12:6: warning: ISO C++ forbids declaration of ‘main’ with no type [-Wreturn-type] main() ^ user.cpp: In function ‘int main()’: user.cpp:17:28: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for (int i=0; i<a.size(); i++) ^ user.cpp:24:62: error: ‘min_element’ was not declared in this scope cout << *min_element(a.begin()+x-1,a.end()+y-a.size()) << '\n'; ^