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Theoremadvanced

External sorting I/O lower bound

Also called Aggarwal-Vitter sorting bound, External sorting lower bound, I/O sorting lower bound.

Sorting N items in external memory needs Theta((N/B) log_{M/B}(N/B)) I/Os.

Sorting N items in external memory needs Theta((N/B) log_{M/B}(N/B)) I/Os.

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LadderLevelWhat the next level needs
Human proofH0 no proof
  • add a proof in proofs/ (06.5)
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  • name a Lean module in the lean field (07)
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  • Statement
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