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A comment on Ask HN: Have you ever needed to invert a binary tree at work?.

Re:Ask HN: Have you ever needed to invert a binary tree at w... by mettamage on Saturday May 22, 2021 @12:04AM (#27243331)
No, I did have to do depth first search with backtracking (e.g. once at node go one up and take node with lowest value).
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