Eroare de compilare in evaluator: user.cpp:8: error: expected initializer before '.' token user.cpp: In function 'void ins(int, int)': user.cpp:12: error: 'head' was not declared in this scope user.cpp:12: error: 'q' was not declared in this scope user.cpp:12: error: 'tail' was not declared in this scope user.cpp:15: error: 'tail' was not declared in this scope user.cpp:15: error: 'q' was not declared in this scope user.cpp:15: error: expected `)' before ']' token user.cpp:15: error: expected primary-expression before ']' token user.cpp:15: error: expected `;' before ']' token user.cpp:16: error: 'q' was not declared in this scope user.cpp:16: error: 'tail' was not declared in this scope user.cpp:18: error: 'head' was not declared in this scope