Eroare de compilare: user.cpp: In function ‘int operatie_0(int, int, int)’: user.cpp:12: error: ‘v’ was not declared in this scope user.cpp:16: error: ‘v’ was not declared in this scope user.cpp:17: error: ‘v’ was not declared in this scope user.cpp: In function ‘int main()’: user.cpp:22: error: ‘n’ was not declared in this scope user.cpp:23: error: ‘i’ was not declared in this scope user.cpp:25: error: ‘v’ was not declared in this scope user.cpp:27: error: ‘nr_operatii’ was not declared in this scope user.cpp:30: error: ‘tip’ was not declared in this scope user.cpp:30: error: ‘x’ was not declared in this scope user.cpp:34: error: ‘operatie_1’ was not declared in this scope user.cpp:36: error: ‘operatie_2’ was not declared in this scope