Eroare de compilare: user.cpp: In function ‘int main()’: user.cpp:8: error: ‘vector’ was not declared in this scope user.cpp:8: error: expected primary-expression before ‘int’ user.cpp:8: error: expected ‘;’ before ‘int’ user.cpp:9: error: ‘n’ was not declared in this scope user.cpp:10: error: ‘v’ was not declared in this scope user.cpp:11: error: ‘v’ was not declared in this scope