Eroare de compilare: user.cpp: In function 'int main()': user.cpp:11: error: 'ok' was not declared in this scope user.cpp:12: error: expected primary-expression before ')' token user.cpp:12: error: lvalue required as left operand of assignment user.cpp:13: error: expected `)' before '{' token user.cpp:16: error: expected primary-expression before '}' token user.cpp:16: error: expected `;' before '}' token user.cpp:17: error: 'ok' was not declared in this scope