Question: ( All the nodes that have - 2 can be treated as a string. For example, please write node 1 - 2

(All the nodes that have "-2" can be treated as a string. For example, please write node
"1-2", as it is,"1-2" instead of "-1".)
The visited nodes in the in-order traversal:
[Put the ordered node list here.]
The visited nodes in the pre-order traversal:
[Put the ordered node list here.]
The visited nodes in the post-order traversal:
[Put the ordered node list here.]
The visited nodes in the breadth-first traversal:
[Put the ordered node list here.]
 (All the nodes that have "-2" can be treated as a

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