# Advent of Code 2024 Day 1 in PowerShell
# Slower code.
# Edit the path to the input text file
# save as slower.ps1
# run from powershell

measure-command {

$FileLines = Get-Content -Path C:\path\to\day1-input.txt

$Col1 = @()
$Col2 = @()

$FileLines | foreach {
    $num1, $num2 = -split $_
    $Col1 += [int]$num1
    $Col2 += [int]$num2
}

[array]::Sort($Col1)
[array]::Sort($Col2)


# part 1
$distances = for ($i=0; $i-lt $Col1.Count; $i++) {
    $num1 = $Col1[$i]
    $num2 = $Col2[$i]
    [math]::Abs($num1 - $num2)

}

$Part1Sum = $distances | measure -sum |% sum

# part 2
$nums = foreach ($num in $Col1) {
    $num * ($Col2 -eq $num).Count
}
$Part2Sum = $nums | measure -sum |% sum

} | foreach { "$($_.Milliseconds) milliseconds" }

"Part 1: $Part1Sum"
"Part 2: $Part2Sum"