CombSort – A very efficient algorithm

' Comb Sort an array of any type'' CombSort is faster than all but QuickSort and close to it.' On the other hand, the code is much simpler than QuickSort' and can be easily customized for any array type' This routine is based on an article appeared on the Byte' magazine in about 1985.'' NUMELS is the index of the last item to be sorted, and is' useful if the array is only partially filled.'' Works with any kind of array, except UDTs and fixed-length' strings, and including objects if your are sorting on their' default property. String are sorted in case-sensitive mode.'' You can write faster procedures if you modify the first two lines' to account for a specific data type, eg.' Sub CombSortS(arr() As Single, Optional numEls As Variant,'  Optional descending As Boolean)'   Dim value As SingleSub CombSort(arr As Variant, Optional numEls As Variant, _    Optional Descending As Boolean)    Dim value As Variant    Dim index As Long    Dim firstItem As Long    Dim Gap As Long    Dim Swap As Boolean    ' account for optional arguments    If IsMissing(numEls) Then numEls = UBound(arr)    firstItem = LBound(arr)    Gap = numEls - firstItem + 1    Swap = False    Do While (Gap > 1 Or Swap)        ' divide Gap by 1.3 - the author says it's an empirical value        If Gap > 1 Then Gap = (10 * Gap)  13        ' another empirical value        If (Gap = 9 Or Gap = 10) Then Gap = 11        Swap = False        For index = firstItem To numEls - Gap            value = arr(index)            If (value > arr(index + Gap)) Xor Descending Then                ' if the items are not in order, swap them                arr(index) = arr(index + Gap)                arr(index + Gap) = value                Swap = True            End If        Next    LoopEnd Sub

Share the Post:
Share on facebook
Share on twitter
Share on linkedin


The Latest

technology leadership

Why the World Needs More Technology Leadership

As a fact, technology has touched every single aspect of our lives. And there are some technology giants in today’s world which have been frequently opined to have a strong influence on recent overall technological influence. Moreover, those tech giants have popular technology leaders leading the companies toward achieving greatness.

iOS app development

The Future of iOS App Development: Trends to Watch

When it launched in 2008, the Apple App Store only had 500 apps available. By the first quarter of 2022, the store had about 2.18 million iOS-exclusive apps. Average monthly app releases for the platform reached 34,000 in the first half of 2022, indicating rapid growth in iOS app development.

microsoft careers

Top Careers at Microsoft

Microsoft has gained its position as one of the top companies in the world, and Microsoft careers are flourishing. This multinational company is efficiently developing popular software and computers with other consumer electronics. It is a dream come true for so many people to acquire a high paid, high-prestige job