Data Center Network Right View Problem

Data Center Network Right View Problem — ExecCode Hard DSA Practice

Solve the Data Center Network Right View problem on ExecCode. Free online hard DSA practice in Two Pointers. Write and run code in Java, C++, Python — no signup required to run.

Problem description

Servers in a data center are arranged as a binary hierarchy. The hierarchy is encoded by root, a level-order array in which null represents a missing child. Imagine viewing the hierarchy from its right side. At every depth, only the rightmost existing server is visible. Return the visible server IDs from the root level down to the deepest level. You are given: root — the nullable level-order encoding of the binary tree For example, [1, 2, 3, null, 5, null, 4] has right-side view [1, 3, 4]. Return an empty list for an empty tree.

Examples

Input {'root': [1, 2, 3, None, 5, None, 4]}; Output [1, 3, 4]. Input {'root': [1, 2, 3, 4, None, None, None, 5]}; Output [1, 3, 4, 5]. Input {'root': [1, None, 2, None, 3, None, 4]}; Output [1, 2, 3, 4]

Constraints

0 <= root.length <= 100000\n- Every non-null server ID is a 32-bit integer\n- null denotes a missing child

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