Concepts2

Dominator Tree

A dominator tree summarizes “must-pass” relationships in a directed graph from a chosen root r: u dominates v if every path from r to v goes through u.

#dominator tree#lengauer tarjan#semidominator+10

⚙️AlgorithmAdvanced

Virtual Tree (Auxiliary Tree)

A Virtual Tree (Auxiliary Tree) compresses a large tree into a much smaller tree that contains only the k important nodes and the LCAs needed to keep them connected.

#virtual tree#auxiliary tree#lca+12