Eroare de compilare: main.cpp:4:13: error: variable 'std::ifstream cin' has initializer but incomplete type ifstream cin("expresie.in"); ^ main.cpp:5:14: error: variable 'std::ofstream cout' has initializer but incomplete type ofstream cout("expresie.out"); ^ main.cpp: In function 'int main()': main.cpp:10:5: error: reference to 'cin' is ambiguous cin>>n; ^~~ main.cpp:4:10: note: candidates are: <typeprefixerror>cin ifstream cin("expresie.in"); ^~~ In file included from main.cpp:1:0: /usr/include/c++/6/iostream:60:18: note: std::istream std::cin extern istream cin; /// Linked to standard input ^~~ main.cpp:13:9: error: reference to 'cin' is ambiguous cin>>a; ^~~ main.cpp:4:10: note: candidates are: <typeprefixerror>cin ifstream cin("expresie.in"); ^~~ In file included from main.cpp:1:0: /usr/include/c++/6/iostream:60:18: note: std::istream std::cin extern istream cin; /// Linked to standard input ^~~ main.cpp:17:19: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int i=0; i<v.size()-1; ++i) ~^~~~~~~~~~~ main.cpp:30:5: error: reference to 'cout' is ambiguous cout<<s+max1+max2-s1-s2; ^~~~ main.cpp:5:10: note: candidates are: <typeprefixerror>cout ofstream cout("expresie.out"); ^~~~ In file included from main.cpp:1:0: /usr/include/c++/6/iostream:61:18: note: std::ostream std::cout extern ostream cout; /// Linked to standard output ^~~~ Non zero exit status: 1