Solution: Redundant Connection
Understand how to detect and return a redundant connection in an undirected graph by applying the Union Find pattern. Explore an optimized approach that employs union by rank and path compression to achieve efficient cycle detection, resulting in a solution with nearly linear time complexity. This lesson guides you through a step-by-step implementation, helping you master this fundamental graph technique.
Statement
We’re given an undirected graph consisting of nodes. The graph is represented as an array called edges, of length , where edges[i] = [a, b] indicates that there is an edge between nodes a and b in the graph.
Return an edge that can be removed to make the graph a edges.
Constraints:
edges.length