Eroare de compilare: main.cpp:6:13: error: variable 'std::ifstream cin' has initializer but incomplete type 6 | ifstream cin("par.in"); | ^ main.cpp:7:14: error: variable 'std::ofstream cout' has initializer but incomplete type 7 | ofstream cout("par.out"); | ^ main.cpp: In function 'int main()': main.cpp:14:5: error: reference to 'cin' is ambiguous 14 | cin>>n; | ^~~ In file included from main.cpp:1: /usr/include/c++/10/iostream:60:18: note: candidates are: 'std::istream std::cin' 60 | extern istream cin; /// Linked to standard input | ^~~ main.cpp:6:10: note: '<typeprefixerror>cin' 6 | ifstream cin("par.in"); | ^~~ main.cpp:15:5: error: reference to 'cin' is ambiguous 15 | cin>>x; | ^~~ In file included from main.cpp:1: /usr/include/c++/10/iostream:60:18: note: candidates are: 'std::istream std::cin' 60 | extern istream cin; /// Linked to standard input | ^~~ main.cpp:6:10: note: '<typeprefixerror>cin' 6 | ifstream cin("par.in"); | ^~~ main.cpp:19:9: error: reference to 'cout' is ambiguous 19 | cout<<-1; | ^~~~ In file included from main.cpp:1: /usr/include/c++/10/iostream:61:18: note: candidates are: 'std::ostream std::cout' 61 | extern ostream cout; /// Linked to standard output | ^~~~ main.cpp:7:10: note: '<typeprefixerror>cout' 7 | ofstream cout("par.out"); | ^~~~ main.cpp:34:5: error: reference to 'cout' is ambiguous 34 | cout<<nr; | ^~~~ In file included from main.cpp:1: /usr/include/c++/10/iostream:61:18: note: candidates are: 'std::ostream std::cout' 61 | extern ostream cout; /// Linked to standard output | ^~~~ main.cpp:7:10: note: '<typeprefixerror>cout' 7 | ofstream cout("par.out"); | ^~~~ Non zero exit status: 1