Eroare de compilare: user.cpp:47:2: warning: no newline at end of file user.cpp: In function 'int main()': user.cpp:16: error: 'x' was not declared in this scope user.cpp:16: error: expected primary-expression before ')' token user.cpp:18: error: 'y' was not declared in this scope user.cpp:32: error: 'y' was not declared in this scope user.cpp:41: error: expected primary-expression before '&=' token