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Find duplicate files by size

Q: Find duplicate files by size

This question evaluates file parsing, data deduplication and grouping skills along with algorithmic efficiency and space-time trade-offs when identifying duplicate files by size rather than by content.

Applied Intuition

Aug 4, 2025, 10:55 AM

Software Engineer

Technical Screen

Coding & Algorithms

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Question

LeetCode 609. Find Duplicate File in System — find duplicate files using file size instead of content comparison

https://leetcode.com/problems/find-duplicate-file-in-system/description/

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