Relaxed Radix Balanced Trees (2024)
Relaxed Radix Balanced Trees I’m adding immutable vectors to my language, Ivan, and needed to pick a suitable data structure to implement them. Clojure uses Persistent Vectors (PVs) which support lookups, updates, and appends all in ‘effectively’ constant time. However, it doesn’t have efficient insert or merge operations. Relaxed Radix Balanced (RRB) Trees, introduced by Bagwell and Rompf in 2011, address this shortcoming. I had to read a few different papers to properly understand how they w