Solution: Redundant Connection

Explore how to detect redundant connections in undirected graphs by applying the Union Find pattern. Understand cycle detection, implement union by rank and path compression, and optimize time and space complexity to solve graph connectivity problems effectively.

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Statement
Solution
- Naive approach
- Optimized approach using union find

Statement

We’re given an undirected graph consisting of $n$ nodes. The graph is represented as list 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 $=$ $n$
edges[i].length $=$

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