Robert Sedgewick's course [1] and associated book/booksite [2] have a good overview of Union-Find problem and various algorithms to solve it. [1] https://www.c

Robert Sedgewick's course [1] and associated book/booksite [2] have a good overview of Union-Find problem and various algorithms to solve it. [1] https://www.coursera.org/learn/algorithms-part1 https://www.coursera.org/learn/algorithms-part1 [2] http://algs4.cs.princeton.edu/15uf/ http://algs4.cs.princeton.edu/15uf/