Script: *measure-BubbleSort.ps1* ======================== This PowerShell script measures the speed of the BubbleSort algorithm. BubbleSort is a simple sorting algorithm that repeatedly steps through the list, compares adjacent elements and swaps them if they are in the wrong order. The pass through the list is repeated until the list is sorted. The algorithm, which is a comparison sort, is named for the way smaller or larger elements "bubble" to the top of the list. Parameters ---------- ```powershell PS> ./measure-BubbleSort.ps1 [[-numIntegers] ] [] -numIntegers Specifies the number of integers to sort Required? false Position? 1 Default value 1000 Accept pipeline input? false Accept wildcard characters? false [] This script supports the common parameters: Verbose, Debug, ErrorAction, ErrorVariable, WarningAction, WarningVariable, OutBuffer, PipelineVariable, and OutVariable. ``` Example ------- ```powershell PS> ./measure-BubbleSort.ps1 🧭 0.729 sec to sort 1000 integers by BubbleSort ``` Notes ----- Author: Markus Fleschutz | License: CC0 Related Links ------------- https://github.com/fleschutz/PowerShell Script Content -------------- ```powershell <# .SYNOPSIS Measures the speed of BubbleSort .DESCRIPTION This PowerShell script measures the speed of the BubbleSort algorithm. BubbleSort is a simple sorting algorithm that repeatedly steps through the list, compares adjacent elements and swaps them if they are in the wrong order. The pass through the list is repeated until the list is sorted. The algorithm, which is a comparison sort, is named for the way smaller or larger elements "bubble" to the top of the list. .PARAMETER numIntegers Specifies the number of integers to sort .EXAMPLE PS> ./measure-BubbleSort.ps1 🧭 0.729 sec to sort 1000 integers by BubbleSort .LINK https://github.com/fleschutz/PowerShell .NOTES Author: Markus Fleschutz | License: CC0 #> param([int]$numIntegers = 1000) class BubbleSort { static Sort($targetList) { $n = $targetList.Count for ($i = 0; $i -lt $n; $i+=1) { for ($j = 0; $j -lt $n-1; $j+=1) { if($targetList[$j] -gt $targetList[$j+1]) { $temp = $targetList[$j+1] $targetList[$j+1]=$targetList[$j] $targetList[$j]=$temp } } } } } $list = (1..$NumIntegers | foreach{Get-Random -minimum 1 -maximum $numIntegers}) $stopWatch = [system.diagnostics.stopwatch]::startNew() [BubbleSort]::Sort($list) [float]$elapsed = $stopWatch.Elapsed.TotalSeconds $elapsed3 = "{0:N3}" -f $elapsed # formatted to 3 decimal places "🧭 $elapsed3 sec to sort $numIntegers integers by BubbleSort" exit 0 # success ``` *(generated by convert-ps2md.ps1 using the comment-based help of measure-BubbleSort.ps1 as of 03/27/2024 17:36:29)*