Borderou de evaluare (job #708866)

Eroare de compilare: main.cpp:5:13: error: variable 'std::ifstream cin' has initializer but incomplete type 5 | ifstream cin("prime1.in"); | ^ main.cpp:6:14: error: variable 'std::ofstream cout' has initializer but incomplete type 6 | ofstream cout("prime1.out"); | ^ main.cpp: In function 'int main()': main.cpp:28:5: error: reference to 'cin' is ambiguous 28 | cin>>c>>n; | ^~~ 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:5:10: note: '<typeprefixerror>cin' 5 | ifstream cin("prime1.in"); | ^~~ main.cpp:45:13: error: reference to 'cin' is ambiguous 45 | cin>>x; | ^~~ 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:5:10: note: '<typeprefixerror>cin' 5 | ifstream cin("prime1.in"); | ^~~ main.cpp:57:9: error: reference to 'cout' is ambiguous 57 | cout<<cnt; | ^~~~ 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:6:10: note: '<typeprefixerror>cout' 6 | ofstream cout("prime1.out"); | ^~~~