Leetcode Problem 684. Redundant Connection

684. Redundant Connection

Leetcode Solutions

Initialize an array parent to represent each node's parent, with each node initially being its own parent.
Define a find function that uses path compression to find the root parent of a node.
Iterate through each edge in the graph.
For each edge (u, v), apply the find function to both u and v.
If find(u) equals find(v), then a cycle is detected, and the current edge is the redundant one.
Otherwise, perform the union operation to merge the subsets containing u and v.
Return the last edge that created a cycle.

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