Practice this Medium Other coding problem from Autodesk.
Mode: On-Campus OA Date: 2026-10-05
You are given an integer array arr
arr
…
Given an array of values, determine the required result under the following conditions.
Input: [4, 8, 15, 16, 23, 42]
Output: 3
Constraints: 1 ≤ n ≤ 10⁵
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