The number of possible ordered trees with three nodes a, b, c is?
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If there are three nodes of the tree, i.e., A, B, C
Then by choosing one node, we have two nodes left.
There are two ways to order those two nodes.
Therefore, three nodes each can be ordered two times.
When calculated, the possible number of ordered tree nodes can be 6.
There are two ways to order those two nodes.
Therefore, three nodes each can be ordered two times.
When calculated, the possible number of ordered tree nodes can be 6.
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