Borderou de evaluare (job #714028)

Eroare de compilare: main.cpp: In function 'int main()': main.cpp:13:5: error: reference to 'cin' is ambiguous 13 | cin>>k; | ^~~ In file included from main.cpp:2: /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:7:10: note: 'std::ifstream cin' 7 | ifstream cin("nr.in"); | ^~~ main.cpp:14:5: error: reference to 'cout' is ambiguous 14 | cout<<(int)(pow(2,k-1))<<endl; | ^~~~ In file included from main.cpp:2: /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:8:10: note: 'std::ofstream cout' 8 | ofstream cout("nr.out"); | ^~~~ main.cpp:15:5: error: reference to 'cin' is ambiguous 15 | cin>>n; | ^~~ In file included from main.cpp:2: /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:7:10: note: 'std::ifstream cin' 7 | ifstream cin("nr.in"); | ^~~ main.cpp:28:13: error: reference to 'cout' is ambiguous 28 | cout<<i; | ^~~~ In file included from main.cpp:2: /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:8:10: note: 'std::ofstream cout' 8 | ofstream cout("nr.out"); | ^~~~ main.cpp:31:13: error: reference to 'cout' is ambiguous 31 | cout<<0; | ^~~~ In file included from main.cpp:2: /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:8:10: note: 'std::ofstream cout' 8 | ofstream cout("nr.out");