684. Redundant Connection :- Detecting and Removing the Redundant Edge in a Tree Using Union-Find

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Candidate's Approach

The candidate explained the problem as detecting and removing a redundant edge in a tree structure using the Union-Find algorithm.
They outlined the steps involved in the approach:
1. Problem Understanding: Recognized that the initial graph was a tree and that adding one edge created a cycle.
2. Observations: Noted that a tree with n nodes has exactly n-1 edges, and since there are n edges in the input, one must be forming a cycle.
3. Union-Find Approach:
  - Initialized parent and rank arrays for the nodes.
  - Implemented find and union functions to manage the sets of nodes and detect cycles.
  - Processed each edge and returned the redundant edge when a cycle was detected.

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