How should I practice Shortest Path Node Count Avoiding Broken Nodes?

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Shortest Path Node Count Avoiding Broken Nodes

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Problem statement

You are given a directed graph as an adjacency list, a list of broken node indices, a start node, and a destination node. Return the minimum number of nodes on a directed path from start to destination that never visits a broken node. Count both endpoints.

The problem statement continues

Pro

Examples

Example 1

graph = [[1,2],[3],[4],[4],[]]broken = [1]start = 0destination = 4return = 3

The shorter route uses broken node 1, so the valid path is 0 to 2 to 4 and contains three nodes.

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