Learning about different problem solving strategies and when to use them will give you a good start. Problem solving is a process. Most strategies provide steps that help you identify the problem and choose the best solution. There are two basic types of strategies: algorithmic and heuristic.
It should be 'No vacancies' (plural). Vacant means empty/free. Vacancy is the state of being empty, therefore 'no vacancies' = no empty rooms.
NOUGHT. not (chinnam; katargeo) Nought is to be distinguished from naught implying badness (see NAUGHT). Nought in the sense of nothing, etc., is the translation of chinnam, gratis (Genesis 29:15), and of various other words occurring once only, e.g.ought in the sense of nothing, etc., is the translation of chinnam, gratis (Genesis 29:15), and of various other words occurring once only, e.g.