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External Sorting and Merge Pass

External Sorting and Merge Pass

Disk-aware sorting when data exceeds memory. Drills cover run generation, k-way merge with a heap, and pass-count math.

Question Bank
Hard
Python
sorting
merge-sort
priority-queue
interview-prep

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4

You need to sort a 10 GB file on a machine with 1 GB of RAM. Outline the two phases of external mergesort and the IO cost.

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