Jump Trading Interview Question: For a 2-level nested loop iterating a 2D array, will exchanging the loop iteration index make a difference in performance.

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For a 2-level nested loop iterating a 2D array, will exchanging the loop iteration index make a difference in performance.

Anonymous

Mar 14, 2012

Basically, they try to test whether you understand the cache.

Anonymous

Sep 20, 2016

Yes, depend on the language if it is column or row major.