#assign our initial variables for the game
[int]$lowerLimit = 0
[int]$upperLimit = 100
[int]$myGuess = 50
[int]$timesRun = 0
[int]$solved = 0

While ($solved -eq 0){
	$queryString = "Is your number " +  $myGuess + "? (higher/lower/correct)"
	$response = read-host $queryString
	switch ($response) {
		"higher" {
			$lowerLimit = $myGuess
			$myGuess = ($lowerLimit + $upperLimit) / 2
			$timesRun++
		}
		"lower" {
			$upperLimit = $myGuess
			$myGuess = ($lowerLimit + $upperLimit) / 2
			$timesRun++
		}
		"correct" {
			$timesRun++
			write-host "Hooray, I won in only $timesRun guesses!"
			$solved = 1
		}
		default {
			write-host "That is not a valid reply!"
			write-host ""
		}
	}
	
}