Valid Binary Tree in Nested (XYZ) Notation - INTEL OA Question | OAHelper

Valid Binary Tree in Nested (XYZ) Notation - INTEL OA Question | OAHelper

Company: INTEL

Difficulty: medium

Problem Statement

Valid Binary Tree in Nested (XYZ) Notation Consider the following nested representation of binary trees: (XYZ) where Y and Z are the left and right subtrees, respectively of node X. Note that Y and Z may be NULL, or further nested. Which one of the given options represents a valid binary tree?

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