Eroare de compilare: main.cpp:6:13: error: variable 'std::ifstream cin' has initializer but incomplete type 6 | ifstream cin("ruksak.in"); | ^ main.cpp:7:14: error: variable 'std::ofstream cout' has initializer but incomplete type 7 | ofstream cout("ruksak.out"); | ^ main.cpp: In function 'int main()': main.cpp:16:18: error: reference to 'cin' is ambiguous 16 | int n,g,w,p; cin >> n >> g; | ^~~ 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("ruksak.in"); | ^~~ main.cpp:20:13: error: reference to 'cin' is ambiguous 20 | cin >> w >> p; | ^~~ 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("ruksak.in"); | ^~~ main.cpp:32:35: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 32 | if((last + 1) == ob[i].size()) continue; | ~~~~~~~~~~~^~~~~~~~~~~~~~~ main.cpp:41:5: error: reference to 'cout' is ambiguous 41 | cout << dp[g]; | ^~~~ 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("ruksak.out"); | ^~~~ Non zero exit status: 1