Wordle comparison: Difference between revisions
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BBAABBB vs BBBBBAA green green yellow yellow green yellow yellow
BBAABBB vs AABBBAA yellow yellow yellow yellow green grey grey
</pre>
=={{header|Swift}}==
<lang swift>enum Colour : CustomStringConvertible {
case grey
case yellow
case green
var description : String {
switch self {
case .grey: return "grey"
case .yellow: return "yellow"
case .green: return "green"
}
}
}
func wordle(answer: String, guess: String) -> [Colour]? {
guard answer.count == guess.count else {
return nil
}
var a = Array(answer)
let g = Array(guess)
let n = a.count
var result = Array(repeating: Colour.grey, count: n)
for i in 0..<n {
if g[i] == a[i] {
a[i] = "\0"
result[i] = Colour.green
}
}
for i in 0..<n {
if let j = a.firstIndex(of: g[i]) {
a[j] = "\0"
result[i] = Colour.yellow
}
}
return result
}
let pairs = [("ALLOW", "LOLLY"), ("BULLY", "LOLLY"),
("ROBIN", "ALERT"), ("ROBIN", "SONIC"),
("ROBIN", "ROBIN")]
for pair in pairs {
if let result = wordle(answer: pair.0, guess: pair.1) {
print("\(pair.0) v \(pair.1) => \(result)")
}
}</lang>
{{out}}
<pre>
ALLOW v LOLLY => [yellow, yellow, green, grey, grey]
BULLY v LOLLY => [grey, grey, green, green, green]
ROBIN v ALERT => [grey, grey, grey, yellow, grey]
ROBIN v SONIC => [grey, green, yellow, green, grey]
ROBIN v ROBIN => [green, green, green, green, green]
</pre>
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