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Stable sort algorithms sort equal elements in the same order that they appear in the input. For example, in the card sorting example to the right, the cards are being sorted by their rank, and their suit is being ignored. This allows the possibility of multiple different correctly sorted versions of the original list.
For example, the items are books, the sort key is the title, subject or author, and the order is alphabetical. A new sort key can be created from two or more sort keys by lexicographical order . The first is then called the primary sort key , the second the secondary sort key , etc.
For example, Arnaldur Indriðason is the son of Indriði G. Þorsteinsson. Normally a patronymic name is sorted as it is written. [9] However, on English Wikipedia, the DEFAULTSORT value is Western order, overridden for Icelandic categories, where the sort key is as the name is written.
An example is adaptive heap sort, a sorting algorithm based on Cartesian trees. It takes time O ( n log k ) {\displaystyle O(n\log k)} , where k {\displaystyle k} is the average, over all values x {\displaystyle x} in the sequence, of the number of times the sequence jumps from below x {\displaystyle x} to above x {\displaystyle x} or vice ...
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data-sort-type:text - Sort the following table to see an example of the alphabetic sort order. Note that sorting is case-insensitive: the two-character entries such as A1 demonstrate that A and a are at the same position.
Merge sort parallelizes well due to the use of the divide-and-conquer method. Several different parallel variants of the algorithm have been developed over the years. Some parallel merge sort algorithms are strongly related to the sequential top-down merge algorithm while others have a different general structure and use the K-way merge method.
In computer science, integer sorting is the algorithmic problem of sorting a collection of data values by integer keys. Algorithms designed for integer sorting may also often be applied to sorting problems in which the keys are floating point numbers, rational numbers, or text strings. [1]