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Monty Hall problem: Difference between revisions
Add Swift
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</pre>
=={{header|Swift}}==
<lang swift>import Foundation
func montyHall(doors: Int = 3, guess: Int, switch: Bool) -> Bool {
guard doors > 2, guess > 0, guess <= doors else { fatalError() }
let winningDoor = Int.random(in: 1...doors)
return winningDoor == guess ? !`switch` : `switch`
}
var switchResults = [Bool]()
for _ in 0..<1_000 {
let guess = Int.random(in: 1...3)
let wasRight = montyHall(guess: guess, switch: true)
switchResults.append(wasRight)
}
let switchWins = switchResults.filter({ $0 }).count
print("Switching would've won \((Double(switchWins) / Double(switchResults.count)) * 100)% of games")
print("Not switching would've won \(((Double(switchResults.count - switchWins)) / Double(switchResults.count)) * 100)% of games")</lang>
{{out}}
<pre>Switching would've won 66.8% of games
Not switching would've won 33.2% of games</pre>
=={{header|Tcl}}==
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