Merge Intervals

Last updated: June 17, 2026

Quick Overview

Given a collection of intervals, merge all overlapping intervals. A frequently asked Meta coding question that tests sorting and greedy algorithm skills.

Meta
Coding & Algorithms
Software Engineer
Meta
June 17, 2026
Software Engineer
Phone Screen
Coding & Algorithms
Medium

159

0

56 solved

Given a collection of intervals, merge all overlapping intervals. A frequently asked Meta coding question that tests sorting and greedy algorithm skills.

How to Approach This
  1. Clarify input constraints and edge cases before writing code.
  2. Walk through your approach verbally and confirm with the interviewer before coding.
  3. Start with a brute force solution, then optimize. Mention time and space complexity.
  4. Test your solution with examples, including edge cases like empty input or duplicates.
  5. Consider common patterns: sliding window, two pointers, hash map, BFS/DFS, dynamic programming.
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