Leetcode Problem 1697. Checking Existence of Edge Length Limited Paths

1697. Checking Existence of Edge Length Limited Paths

Leetcode Solutions

Disjoint Set Union (DSU) Approach

  1. Define a UnionFind class with methods find, union, and connected.
  2. Sort the edgeList by edge weights in ascending order.
  3. Sort the queries by their limits in ascending order, keeping track of the original indices.
  4. Initialize a UnionFind instance with size n.
  5. Initialize an array answers to store the results of the queries.
  6. Iterate through the sorted queries, for each query: a. Join all nodes in edgeList with weights less than the current query limit using the union method. b. Check if the nodes in the query are connected using the connected method. c. Store the result in the answers array at the corresponding original index.
  7. Return the answers array.
UML Thumbnail

Breadth-First Search (BFS) Approach

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