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OA Practice Workspace

HR2026-08-13

Problem solving

AI-Expanded — inferred from the question title, not from the original candidate report

Given an array of integers and a target sum, determine if there exists a subset of elements that adds up exactly to the target value. You must implement an efficient solution that handles potential edge cases, such as negative numbers or an empty input array, and explain the time and space complexity of your approach.

Context & Summary

Behavioral interviews

💻 Coding practice works best on desktop.
Code editors are too cramped on mobile screens.