Eroare de compilare: user.cpp: In function ‘void citire()’: user.cpp:10: error: ‘scanf’ was not declared in this scope user.cpp: In function ‘int main(int, char**)’: user.cpp:37: error: ‘stdin’ was not declared in this scope user.cpp:37: error: ‘freopen’ was not declared in this scope user.cpp:38: error: ‘stdout’ was not declared in this scope user.cpp:42: error: ‘printf’ was not declared in this scope