Solution: Redundant Connection

Explore how to find and remove a redundant connection in an undirected graph to form a cycle-free tree. Understand applying the Union Find data structure with optimizations like path compression and union by rank to detect cycles efficiently. This lesson guides you through constructing the solution step-by-step and evaluating its time and space complexity.

We'll cover the following...

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

...