Disjoint-set data structure

TODO: write this page. Start from https://en.wikipedia.org/wiki/Disjoint-set_data_structure.

Problems4 / 4

• ● 0107 — Minimal Network
• ● 0186 — Connectedness of a Network
• ● 0425 — Prime Connection
• ● 0674 — Solving $\mathcal{I}$-equations