[Swift] 백준 4659 비밀번호 발음하기 (String)

 

📌 풀이

💬 Code

import Foundation

while (true) {
    let pw = readLine()!
    if pw == "end" {
        break
    }

    if pw.isPassedConditionA() && pw.isPassedConditionB() && pw.isPassedConditionC() {
        print("<\(pw)> is acceptable.")
    } else {
        print("<\(pw)> is not acceptable.")
    }
}

extension String {
    func isPassedConditionA() -> Bool {
        for alpha in self.map({ String($0) }) {
            if ["a", "e", "i", "o", "u"].contains(alpha) {
                return true
            }
        }
        return false
    }

    func isPassedConditionB() -> Bool {
        let arr = self.map{ String($0) }

        if arr.count > 2 {
            for i in 0..<arr.count-2 {
                let cnt = arr[i...i+2].filter{ ["a", "e", "i", "o", "u"].contains($0) }.count
                if cnt == 0 || cnt == 3 {
                    return false
                }
            }
        }
        return true
    }

    func isPassedConditionC() -> Bool {
        var arr1 = self.dropLast().map { String($0) }
        var arr2 = self.dropFirst().map { String($0) }

        for (a, b) in zip(arr1, arr2) {
            if (a == b) && !(a == "e" || a == "o") {
                return false
            }
        }
        return true
    }
}

 

4659번: 비밀번호 발음하기