一棵树的程度是多少？ （如同，一棵树ADT）

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但是，我们如何定义一个树的程度？

解决方案

一般来说，图形具有最小程度和最大程度，只是图中所有节点的最大程度的最小值。

如果图是k-规则的，那就是所有节点都具有正好相邻的k个邻居，最小和最大等于k，并且图表示为k度。 / p>

因为一棵树不是常规的，你不能说它有grad k，但你可以找到它的最小或最大grad。

相当普遍的是k-ary树，它们是根树，每个节点最多有k个孩子。

I understand that the degree of a node is the number of children it has.

However, how do we define the degree of a tree?

解决方案

In general a graph has a minimum degree and a maximum degree, that is just the minimum respectivly the maximum degree of all nodes in the graph.

If a graph is k-regular, that is all nodes have exactly k neighbours, minimum and maximum degree equal k and the graph is said to be of degree k.

Because a tree is not k-regular you cannot say it has grad k, but you can find its minimum or maximum grad.

Quite common are k-ary trees, that are rooted trees where each node has at most k childs.