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This course covers the essential information that every serious programmer needs to know about algorithms and data structures, with emphasis on applications and scientific performance analysis of Java implementations.

Part I covers elementary data structures, sorting, and searching algorithms.

I would expect (think it is necessary for correctness of the algorithm) that one of those would not include the equality (either strictly greater or strictly less.) This is a pretty common version of partition and in this case you need N 1 comparisons. Left pointers moves towards right, right pointer moves towards left.Thus all the elements are compared with pivot at least once.This file contains additional information such as Exif metadata which may have been added by the digital camera, scanner, or software program used to create or digitize it.If the file has been modified from its original state, some details such as the timestamp may not fully reflect those of the original file.Mathematical analysis of quicksort shows that, on average, the algorithm takes O(n log n) comparisons to sort n items.

In the worst case, it makes O(n The quicksort algorithm was developed in 1959 by Tony Hoare while in the Soviet Union, as a visiting student at Moscow State University.

At that time, Hoare worked in a project on machine translation for the National Physical Laboratory.

As a part of the translation process, he needed to sort the words of Russian sentences prior to looking them up in a Russian-English dictionary that was already sorted in alphabetic order on magnetic tape.

The timestamp is only as accurate as the clock in the camera, and it may be completely wrong.

Quick sort is an efficient sorting algorithm invented by C. Picking a random pivot point will not eliminate the worst-case time, but it will usually transform the worst case into a less frequently occuring permutation.

The main thing is to say that the book doesn't say it wrong.