Advent of Code 2021 Day 3 Part 1

#https://adventofcode.com/2021/day/3

# WebRequest to gather your puzzle input
$cookie_id = "53616xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx"
$session = New-Object Microsoft.PowerShell.Commands.WebRequestSession
$session.Cookies.Add((New-Object System.Net.Cookie("session", $cookie_id, "/", ".adventofcode.com")))
$binary = Invoke-WebRequest -UseBasicParsing -Uri "https://adventofcode.com/2021/day/3/input" ` -WebSession $session
$binary = $binary.Content

# Format the input content as an array by splitting it line by line
$binary = $binary -split("\n")

#Create a custom object to compare each bit "0" or "1"
$counting_array = @()
0..($binary[0].Length -1) | % {
    $counting_array += [pscustomobject]@{
        "0"= 0
        "1"= 0
    }
}

#Parse over the puzzle input and count if bits are 0 or 1
$binary | % {
    $bin = $_
    0..($bin.length - 1)|% {
        if ($bin[$_] -eq "0"){
            $counting_array[$_].0 += 1
        }
        else{
            $counting_array[$_].1 += 1
        }
    }
}

#Store the binary as strings
[string]$gamma   = ""
[string]$epsilon = ""

#Compare for each bit if there are more 0 or 1 and append it to the binary strings
$counting_array | % {
    if($_.0 -gt $_.1){
        $gamma+="0"
        $epsilon+="1"
    }
    else{
        $gamma+="1"
        $epsilon+="0"
    }
}

#Convert the strings to INT32 and multiply them to get the first part answer
$part_1_answer = ([convert]::ToInt32($gamma,2))*([convert]::ToInt32($epsilon,2))