Leetcode Problem 1489. Find Critical and Pseudo-Critical Edges in Minimum Spanning Tree
Leetcode Solutions
Identifying Critical and Pseudo-Critical Edges in MST using Kruskal's Algorithm
- Sort the edges by weight and store the original indices.
- Use Kruskal's algorithm to find the standard MST weight.
- Iterate over each edge and perform two checks: a. Ignoring the edge: Calculate the MST weight without this edge. If the weight increases or the graph becomes disconnected, mark the edge as critical. b. Forcing the edge: Include the edge and calculate the MST weight. If the weight remains the same as the standard MST weight, mark the edge as pseudo-critical.
- Return the list of critical and pseudo-critical edges.
Ask Question
Programming Language
Purpose:
image/screenshot of info(optional)
Full Screen
Loading...
Suggested Answer
Answer
Full Screen
Copy Answer Code
Loading...