[LeetCode] 847. Shortest Path Visiting All Nodes 访问所有结点的最短路径

Posted 2022-08-26 grandyang

An undirected, connected graph of N nodes (labeled?0, 1, 2, ..., N-1) is given as?graph.

graph.length = N, and?j != i?is in the list?graph[i]?exactly once, if and only if nodes?i?and?j?are connected.

Return the length of the shortest path that visits every node. You may start and stop at any node, you may revisit nodes multiple times, and you may reuse edges.

Example 1:

Input: [[1,2,3],[0],[0],[0]]
Output: 4
Explanation: One possible path is [1,0,2,0,3]

Example 2:

Input: [[1],[0,2,4],[1,3,4],[2],[1,2]]
Output: 4
Explanation: One possible path is [0,1,4,2,3]

Note:

1. 1 <= graph.length <= 12
2. 0 <= graph[i].length <?graph.length

Github 同步地址:

https://github.com/grandyang/leetcode/issues/847

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参考资料：

https://leetcode.com/problems/shortest-path-visiting-all-nodes/

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