Freaks City

Overview The Chtholly Tree, also known as ODT (Old Driver Tree), gained popularity through Codeforces problem 896C. It's crucial to understand that this approach is fundamentally based on color segment amortization for random data, rather than being a strict data structure. The operations described below represent specific implementations of th ...

The ZKW segment tree is a non-recursive data structure that performs bottom-up updates and queries. It is often used as a replacement for Fenwick trees when range updates and range queries are needed. The key concept is to use two "shrinking" pointers (l and r) that move upward from the leaf level. To range updates with lazy tags, we ...