data-structuresUnion-find data structure


Introduction

A union-find (or disjoint-set) data structure is a simple data structure a partition of a number of elements into disjoint sets. Every set has a representative which can be used to distinguish it from the other sets.

It is used in many algorithms, e.g. to compute minimum spanning trees via Kruskal's algorithm, to compute connected components in undirected graphs and many more.