I get confused with the problem desc


  • 0
    B

    Can someone help? What does this child-parent-child really mean?

    On the other hand, the path can be in the child-Parent-child order, where not necessarily be parent-child order.

    Example 1:
    Input:
    1
    /
    2 3
    Output: 2
    Explanation: The longest consecutive path is [1, 2] or [2, 1].


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