Eroare de compilare: user.cpp: In function ‘int main()’: user.cpp:7:3: error: ‘cin’ was not declared in this scope cin >> t; ^~~ user.cpp:7:3: note: suggested alternative: In file included from user.cpp:1:0: /usr/include/c++/6/iostream:60:18: note: ‘std::cin’ extern istream cin; /// Linked to standard input ^~~ user.cpp:14:5: error: ‘cout’ was not declared in this scope cout << lg << "\n"; ^~~~ user.cpp:14:5: note: suggested alternative: In file included from user.cpp:1:0: /usr/include/c++/6/iostream:61:18: note: ‘std::cout’ extern ostream cout; /// Linked to standard output ^~~~ user.cpp:4:35: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen("sticle.in", "r", stdin); ^ user.cpp:5:37: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen("sticle.out", "w", stdout); ^