[C++] O(N) solution with comments - Longest ZigZag Path in a Binary Tree - LeetCode

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C++JavaPython3CPythonJavaScriptGoC#RustKotlinTypeScriptSwiftScalaRubyPHPElixirErlangDepth-First SearchRecursionTreeBinary TreeDynamic ProgrammingBreadth-First SearchMemoizationQueueStackIteratorHash TableArrayBinary Search TreeMathBinary SearchBacktrackingGreedyBrainteaserOrdered Map