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by gaustin
4022 days ago
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Could you illustrate? I can find plenty of examples of mirroring/reversing a tree (below the root node) but none that really invert it. I haven't even found a definition of what inverting a tree means (aside from some academic papers I haven't been able to read yet), despite quite a bit of googling. |
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i based my comment on the only thing I could find: https://wwwx.cs.unc.edu/~duozhao/entry/2014/12/binary-tree-u...
this is only slightly harder than the trivial (if u know recursion) "mirroring" a tree problem