Quick Overview

Merge an unsorted collection of closed integer intervals into a deterministic, non-overlapping union. Explain shared-endpoint behavior, duplicates, containment, empty input, immutability, complexity, and how the contract changes for half-open or streaming intervals.

Merge Overlapping Intervals

Company: ByteDance

Role: Software Engineer

Category: Coding & Algorithms

Difficulty: easy

Interview Round: Technical Screen

Overview: Merge an unsorted collection of closed integer intervals into a deterministic, non-overlapping union. Explain shared-endpoint behavior, duplicates, containment, empty input, immutability, complexity, and how the contract changes for half-open or streaming intervals.

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