Python DSA Coding Interview Series:14/29 [Recursion and Binary Tree DFS]
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Ask each subtree a small question, trust the answers, and combine them. That single habit solves depth, balance, path sums and diameters…

 

 Ask each subtree a small question, trust the answers, and combine them. That single habit solves depth, balance, path sums and diameters…Continue reading on Models to Systems » Read More Python on Medium 

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By ali

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