Eroare de compilare: user.cpp: In function ‘int main()’: user.cpp:4: error: ‘stdin’ was not declared in this scope user.cpp:4: error: ‘freopen’ was not declared in this scope user.cpp:5: error: ‘stdout’ was not declared in this scope user.cpp:10: error: ‘scanf’ was not declared in this scope user.cpp:12: error: ‘N’ was not declared in this scope user.cpp:27: error: ‘V’ was not declared in this scope user.cpp:34: error: ‘V’ was not declared in this scope user.cpp:42: error: ‘printf’ was not declared in this scope