Eroare de compilare: user.cpp:19: error: expected initializer before ‘queue’ user.cpp: In function ‘void prelucrare()’: user.cpp:34: error: ‘viz’ was not declared in this scope user.cpp:35: error: ‘coada’ was not declared in this scope user.cpp:41: error: ‘coada’ was not declared in this scope user.cpp:47: error: ‘viz’ was not declared in this scope user.cpp:22: warning: unused variable ‘ok’ user.cpp: In function ‘int main()’: user.cpp:64: error: ‘retrun’ was not declared in this scope user.cpp:64: error: expected ‘;’ before numeric constant