Let’s say : std::sort(beg1, beg2, pred); This algorithm takes a range of iterators for the container and a predicate. It takes an LegacyRandomAccessIterator. I do understand the the 5 iterator categories are categorised by their operators. Albeit I’m having a hard time assuming which iterator the algorithm uses. >Solution : There is no need to… Read More How should I assume which iterator category an algorithm uses?