Borderou de evaluare (job #704632)

Eroare de compilare: main.cpp:3:13: error: variable 'std::ifstream cin' has initializer but incomplete type 3 | ifstream cin("abc.in"); | ^ main.cpp:4:14: error: variable 'std::ofstream cout' has initializer but incomplete type 4 | ofstream cout("abc.out"); | ^ main.cpp: In function 'int main()': main.cpp:10:5: error: reference to 'cin' is ambiguous 10 | cin>>n>>nr; | ^~~ In file included from main.cpp:1: /usr/lib/gcc/i686-pc-linux-gnu/11/include/g++-v11/iostream:60:18: note: candidates are: 'std::istream std::cin' 60 | extern istream cin; /// Linked to standard input | ^~~ main.cpp:3:10: note: '<typeprefixerror>cin' 3 | ifstream cin("abc.in"); | ^~~ main.cpp:13:9: error: reference to 'cin' is ambiguous 13 | cin>>c; | ^~~ In file included from main.cpp:1: /usr/lib/gcc/i686-pc-linux-gnu/11/include/g++-v11/iostream:60:18: note: candidates are: 'std::istream std::cin' 60 | extern istream cin; /// Linked to standard input | ^~~ main.cpp:3:10: note: '<typeprefixerror>cin' 3 | ifstream cin("abc.in"); | ^~~ main.cpp:22:21: error: reference to 'cout' is ambiguous 22 | cout<<c; | ^~~~ In file included from main.cpp:1: /usr/lib/gcc/i686-pc-linux-gnu/11/include/g++-v11/iostream:61:18: note: candidates are: 'std::ostream std::cout' 61 | extern ostream cout; /// Linked to standard output | ^~~~ main.cpp:4:10: note: '<typeprefixerror>cout' 4 | ofstream cout("abc.out"); | ^~~~ main.cpp:27:9: error: reference to 'cin' is ambiguous 27 | cin>>c; | ^~~ In file included from main.cpp:1: /usr/lib/gcc/i686-pc-linux-gnu/11/include/g++-v11/iostream:60:18: note: candidates are: 'std::istream std::cin' 60 | extern istream cin; /// Linked to standard input | ^~~ main.cpp:3:10: note: '<typeprefixerror>cin' 3 | ifstream cin("abc.in"); | ^~~ main.cpp:28:9: error: reference to 'cout' is ambiguous 28 | cout<<c; | ^~~~