Invert a Binary Tree

What makes this question special is this tweet. https://twitter.com/mxcl/status/608682016205344768?lang=en He questions the interview process, I am with him. But whatever it is, it is. Question :┬áInvert a binary tree. Return the root of the inverted tree. 4 / \ 2 7 / \ / \ 1 3 6 9 to 4 / \ 7 2 … Continue reading Invert a Binary Tree

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