Borderou de evaluare (job #756625)

Eroare de compilare: main.cpp:12:14: error: variable 'std::ifstream cin' has initializer but incomplete type 12 | ifstream cin ("2b1.in"); | ^ main.cpp:13:15: error: variable 'std::ofstream cout' has initializer but incomplete type 13 | ofstream cout ("2b1.out"); | ^ main.cpp: In function 'int main()': main.cpp:19:3: error: reference to 'cin' is ambiguous 19 | cin >> n ; | ^~~ In file included from main.cpp:9: /usr/lib/gcc/i686-pc-linux-gnu/13/include/g++-v13/iostream:62:18: note: candidates are: 'std::istream std::cin' 62 | extern istream cin; ///< Linked to standard input | ^~~ main.cpp:12:10: note: '<typeprefixerror>cin' 12 | ifstream cin ("2b1.in"); | ^~~ main.cpp:32:9: error: reference to 'cout' is ambiguous 32 | cout<<i<<" "; | ^~~~ /usr/lib/gcc/i686-pc-linux-gnu/13/include/g++-v13/iostream:63:18: note: candidates are: 'std::ostream std::cout' 63 | extern ostream cout; ///< Linked to standard output | ^~~~ main.cpp:13:10: note: '<typeprefixerror>cout' 13 | ofstream cout ("2b1.out"); | ^~~~ main.cpp:18:11: warning: unused variable 'x' [-Wunused-variable] 18 | int n , x , cnt ; | ^