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Merge sort. In computer science, a sorting algorithm is an algorithm that puts elements of a list into an order.The most frequently used orders are numerical order and lexicographical order, and either ascending or descending.
Such a component or property is called a sort key. 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.
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Stable sorting algorithms maintain the relative order of records with equal keys (i.e. values). That is, a sorting algorithm is stable if whenever there are two records R and S with the same key and with R appearing before S in the original list, R will appear before S in the sorted list.
In computing, natural sort order (or natural sorting) is the ordering of strings in alphabetical order, except that multi-digit numbers are treated atomically, i.e., as if they were a single character. Natural sort order has been promoted as being more human-friendly ("natural") than machine-oriented, pure alphabetical sort order.
Sorting your emails from your folders has never been easier in AOL Mail. Use the sorting feature regardless of the folder you are in to rearrange the emails and find the ones important, click on Sort on top right of your emails list and choose the option that best suits your need. • Date - Newest on top. • Date - Oldest on top.
Cyclic orders, orderings in which triples of elements are either clockwise or counterclockwise; Lattices, partial orders in which each pair of elements has a greatest lower bound and a least upper bound. Many different types of lattice have been studied; see map of lattices for a list.
By grouping the items from this list into buckets again, each bucket may be placed into sorted order, and by extracting the representatives from the sorted list the buckets may be concatenated together into sorted order. Thus, in linear time, the sorting problem is reduced to another recursive sorting problem in which the keys are much smaller ...