Union-Find

LeetCode 1971: Find if Path Exists in Graph

LeetCode 990: Satisfiability of Equality Equations

LeetCode 721: Accounts Merge

LeetCode 947: Most Stones Removed with Same Row or Column

LeetCode 1319: Number of Operations to Make Network Connected

LeetCode 1202: Smallest String With Swaps

LeetCode 684: Redundant Connection

LeetCode 547: Number of Provinces

Union Find