Wordle first word

import Foundation

// Get the Unix list of all words.
let words = try! String(contentsOfFile: "/usr/share/dict/words")
    .split(whereSeparator: \.isNewline).map({ $0.uppercased() })
// Calculate frequencies of each letter in the above corpus of words.
var wordFrequencies:[String.Element: Int] = [:]
for word in words {
    // Only look at 5-letter words.
    if word.count != 5 {
        continue
    }
    word.forEach({wordFrequencies[$0] = (wordFrequencies[$0] ?? 0) + 1})
}
var results:[(word:String, score:Int)] = []
for word in words {
    // Only look at 5-letter words with all unique characters.
    if word.count != 5 || Set(word).count != 5 {
        continue
    }
    // Score each one by adding the values of letters in that word.
    let score = word.reduce(0) { partialResult, character in
        partialResult + (wordFrequencies[character] ?? 0)
    }
    results.append((word, score))
}

results.sort(by: {$0.score > $1.score})
print(results)