Solution: Redundant Connection

Explore how to identify and remove a redundant edge from an undirected graph to form a tree. Understand the union find algorithm enhanced with union by rank and path compression. Learn to apply these techniques to detect cycles efficiently with linear time complexity.

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Statement
Solution

Statement

We’re given an undirected graph consisting of $n$ nodes. The graph is represented as an array called edges, of length $n$ , 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 treeA tree is an undirected graph that is connected and has no cycles. of $n$ nodes. If there are multiple candidates for removal, return the edge that occurs last in edges.

Constraints:

$3 \leq$ $n$ $\leq 100$
edges.length

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