Commons.Collections.SquareList
1.0.6
dotnet add package Commons.Collections.SquareList --version 1.0.6
NuGet\Install-Package Commons.Collections.SquareList -Version 1.0.6
<PackageReference Include="Commons.Collections.SquareList" Version="1.0.6" />
paket add Commons.Collections.SquareList --version 1.0.6
#r "nuget: Commons.Collections.SquareList, 1.0.6"
// Install Commons.Collections.SquareList as a Cake Addin
#addin nuget:?package=Commons.Collections.SquareList&version=1.0.6
// Install Commons.Collections.SquareList as a Cake Tool
#tool nuget:?package=Commons.Collections.SquareList&version=1.0.6
Commons.Collections.SquareList
Managed Commons library containing the SquareList specialized collection.
Now requires .NET 6.0/C# 10 to build
Loosely based on an article published in the May 2013 issue of Dr Dobb's Journal, by Mark Sams. His implementation in C used circular doubly-linked lists of doubly-linked lists, I've reimplemented using a List of Dynamic Slices backed a single Big Array, It uses a lot less memory than linked lists, but inserts in crammed sets can have ripple effects with worst case O(n).
This implementation allows for multiple instances of the same value to be inserted, and then deleted one-at-a-time or wholesale.
Thinking about performance, search for counting/existence is done bidirectionally, but removal scans only in the forward direction, to have a stable behavior (remove the first found) when duplicates exist.
The SquareList is a structure that is particularly useful in applications that frequently require the current minimum and maximum values, as they both can be found in constant time, even accounting for deletions. This implementation performs insert/delete/find operations within a worst-case running time of O(sqrt(n)) [In truth O(n) for inserts]. Values are always kept in ascending order, so traversing it in that order is natural and performant.
Commons.Collections.SquareList 1.0.6 is available at Nuget: Commons.Collections.SquareList.
Targets in the package
| Release | .NET Standard 1.0 | .NET Standard 2.1 | .NET 6.0 |
|---|---|---|---|
| 1.0.0 | ✔ | ||
| 1.0.2 | ✔ | ||
| 1.0.3 | ✔ | ✔ | |
| 1.0.4 | ✔ | ✔ | ✔ |
| 1.0.5 | ✔ | ✔ | ✔ |
| 1.0.6 | ✔ | ✔ | ✔ |
Performance
Some performance testing, all times in ms (updated and now using release version of nuget, on .NET 6.0):
SortedList (all times in ms) [.NET 6.0]
| Initial Size | Creation | Deletes | Inserts | Searchs | Min | Max |
|---|---|---|---|---|---|---|
| 1000 | 1 | 1 | 0 | 0 | 16 | 19 |
| 1779 | 0 | 0 | 0 | 0 | 15 | 19 |
| 3163 | 0 | 0 | 0 | 0 | 16 | 19 |
| 5624 | 0 | 0 | 0 | 0 | 15 | 13 |
| 10000 | 0 | 1 | 1 | 0 | 6 | 3 |
| 17783 | 1 | 1 | 2 | 0 | 3 | 3 |
| 31623 | 1 | 2 | 3 | 0 | 3 | 3 |
| 56235 | 2 | 4 | 5 | 0 | 3 | 3 |
| 100000 | 4 | 9 | 10 | 0 | 3 | 4 |
| 177828 | 7 | 16 | 19 | 0 | 3 | 4 |
| 316228 | 17 | 39 | 38 | 0 | 3 | 3 |
| 562342 | 26 | 188 | 115 | 0 | 3 | 3 |
| 1000000 | 47 | 363 | 127 | 0 | 2 | 3 |
| 1778280 | 77 | 575 | 302 | 0 | 3 | 3 |
| 3162278 | 144 | 1050 | 809 | 0 | 3 | 3 |
| 5623414 | 261 | 1893 | 1528 | 0 | 3 | 3 |
| 10000000 | 484 | 3421 | 2930 | 0 | 3 | 2 |
| 17782795 | 874 | 6045 | 5311 | 0 | 3 | 3 |
| 31622777 | 1598 | 10743 | 9482 | 1 | 3 | 3 |
SquareList
| Initial Size | Creation | Deletes | Inserts | Reinserts | Searchs | Min | Max | CutInHalf | Shrink |
|---|---|---|---|---|---|---|---|---|---|
| 1000 | 2 | 3 | 2 | 3 | 0 | 0 | 0 | 1 | 1 |
| 1779 | 0 | 0 | 1 | 0 | 0 | 0 | 0 | 0 | 0 |
| 3163 | 0 | 1 | 1 | 0 | 0 | 0 | 0 | 0 | 0 |
| 5624 | 0 | 1 | 1 | 0 | 0 | 0 | 0 | 0 | 0 |
| 10000 | 0 | 1 | 1 | 1 | 0 | 0 | 0 | 0 | 0 |
| 17783 | 0 | 1 | 1 | 1 | 0 | 0 | 0 | 0 | 0 |
| 31623 | 0 | 1 | 1 | 2 | 0 | 0 | 0 | 0 | 0 |
| 56235 | 1 | 1 | 1 | 3 | 0 | 0 | 0 | 0 | 0 |
| 100000 | 1 | 2 | 1 | 5 | 0 | 0 | 0 | 0 | 1 |
| 177828 | 2 | 3 | 2 | 10 | 0 | 0 | 0 | 0 | 1 |
| 316228 | 6 | 3 | 3 | 19 | 0 | 0 | 0 | 0 | 2 |
| 562342 | 11 | 4 | 4 | 31 | 0 | 0 | 0 | 1 | 5 |
| 1000000 | 15 | 2 | 1 | 51 | 0 | 0 | 0 | 0 | 6 |
| 1778280 | 27 | 6 | 5 | 83 | 0 | 0 | 0 | 2 | 10 |
| 3162278 | 45 | 8 | 8 | 159 | 1 | 0 | 0 | 3 | 18 |
| 5623414 | 72 | 9 | 8 | 287 | 1 | 0 | 0 | 4 | 34 |
| 10000000 | 129 | 12 | 10 | 500 | 1 | 0 | 0 | 9 | 60 |
| 17782795 | 237 | 17 | 14 | 890 | 1 | 0 | 0 | 14 | 108 |
| 31622777 | 412 | 21 | 18 | 1584 | 1 | 0 | 0 | 24 | 189 |
License: MIT
See LICENSE
| Product | Versions |
|---|---|
| .NET | net5.0 net5.0-windows net6.0 net6.0-android net6.0-ios net6.0-maccatalyst net6.0-macos net6.0-tvos net6.0-windows net7.0 net7.0-android net7.0-ios net7.0-maccatalyst net7.0-macos net7.0-tvos net7.0-windows |
| .NET Core | netcoreapp1.0 netcoreapp1.1 netcoreapp2.0 netcoreapp2.1 netcoreapp2.2 netcoreapp3.0 netcoreapp3.1 |
| .NET Standard | netstandard1.0 netstandard1.1 netstandard1.2 netstandard1.3 netstandard1.4 netstandard1.5 netstandard1.6 netstandard2.0 netstandard2.1 |
| .NET Framework | net45 net451 net452 net46 net461 net462 net463 net47 net471 net472 net48 net481 |
| MonoAndroid | monoandroid |
| MonoMac | monomac |
| MonoTouch | monotouch |
| Tizen | tizen30 tizen40 tizen60 |
| Universal Windows Platform | uap uap10.0 |
| Windows Phone | wp8 wp81 wpa81 |
| Windows Store | netcore netcore45 netcore451 |
| Xamarin.iOS | xamarinios |
| Xamarin.Mac | xamarinmac |
| Xamarin.TVOS | xamarintvos |
| Xamarin.WatchOS | xamarinwatchos |
-
.NETStandard 1.0
- NETStandard.Library (>= 1.6.1)
-
.NETStandard 2.1
- No dependencies.
-
net6.0
- No dependencies.
NuGet packages
This package is not used by any NuGet packages.
GitHub repositories
This package is not used by any popular GitHub repositories.
Packaging for netstandard1.0;netstandard2.1;net6.0