LC: 1548. The Most Similar Path in a Graph - spiralgo/algorithms GitHub Wiki

1548. The Most Similar Path in a Graph:

The Essence:

  • Since The Most Similar Path is equal to the path with the minimum edit distance, we should understand what edit distance means, first.

For example:

["ATL","DXB","HND","LAX"]

["ATL","DXB","PEK","LAX"]

These two arrays have 1 edit distance as just 1 index has different values in each array.

  • We have a roads array (roads[i] = [ai, bi] connects city ai with city bi) but we can convert it to a graph. Then we will traverse the graph and specify the most similar paths for each city.

Details:

  • We can use a PriorityQueue approach with Double-ended Queue:
  • We can use a Dynamic Programming approach.

For detailed explanation and implementations for both approaches: https://github.com/spiralgo/algorithms/pull/380