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Google Software Engineer Interview Question

"Given a disk running out of space, find a way to search whole hard drive to dedup in file level. Goal is copying as less data as possible to another hard drive without losing any info. Write it with any language you want."
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Part of a Software Engineer Interview Review - one of 3,050 Google Interview Reviews

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I only have time to write a pseudo code like C. The idea is search directory tree, if find one file, calculate a hash for it then push into a hashtable.

- Interview Candidate on May 21, 2012

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