Yeah, that's a good paper -- Vadim's nested-interval tree method is quite clever. For more related references, see... Using rational numbers to key nested sets

Yeah, that's a good paper -- Vadim's nested-interval tree method is quite clever. For more related references, see... Using rational numbers to key nested sets https://news.ycombinator.com/item?id=13517490 https://news.ycombinator.com/item?id=13517490