Eroare de compilare: user.cpp: In function ‘int main()’: user.cpp:7:5: error: ‘ifstream’ was not declared in this scope ifstream in("flip.in"); ^~~~~~~~ user.cpp:7:5: note: suggested alternative: In file included from /usr/include/c++/6/ios:38:0, from /usr/include/c++/6/istream:38, from /usr/include/c++/6/fstream:38, from user.cpp:1: /usr/include/c++/6/iosfwd:162:34: note: ‘std::ifstream’ typedef basic_ifstream<char> ifstream; ^~~~~~~~ user.cpp:8:5: error: ‘ofstream’ was not declared in this scope ofstream out("flip.out"); ^~~~~~~~ user.cpp:8:5: note: suggested alternative: In file included from /usr/include/c++/6/ios:38:0, from /usr/include/c++/6/istream:38, from /usr/include/c++/6/fstream:38, from user.cpp:1: /usr/include/c++/6/iosfwd:165:34: note: ‘std::ofstream’ typedef basic_ofstream<char> ofstream; ^~~~~~~~ user.cpp:11:5: error: ‘in’ was not declared in this scope in >> n >> m; ^~ user.cpp:33:32: error: ‘max’ was not declared in this scope max1 = max(max1, maxcur); ^ user.cpp:33:32: note: suggested alternative: In file included from /usr/include/c++/6/bits/char_traits.h:39:0, from /usr/include/c++/6/ios:40, from /usr/include/c++/6/istream:38, from /usr/include/c++/6/fstream:38, from user.cpp:1: /usr/include/c++/6/bits/stl_algobase.h:265:5: note: ‘std::max’ max(const _Tp& __a, const _Tp& __b, _Compare __comp) ^~~ user.cpp:35:5: error: ‘out’ was not declared in this scope out << max1; ^~~