BOJ 2577 with Swift

BOJ 2577 with Swift

https://www.acmicpc.net/problem/2577

import Foundation

struct Q2577 {

    static func input() -> String {

        if let a = Int(readLine()!) , let b = Int(readLine()!) , let c = Int(readLine()!) {

            return String(a * b * c)

        }

        return ""

    }



    static func main() {

        var count = ""

        let number = input()

        // countZero

        count += "\(self.matchZero(number))"

        // matchNumber

        for i in 1..<10{

            let str = String(i)

            let char = Character(str)

            count += "\(matchNumber(char, number))"

        }



        self.printCount(count)

    }



    static func printCount(_ count:String) {

        for c in count {

            print(c)

        }

    }



    static func matchNumber(_ target:Character , _ numbers:String) -> Int {

        var count = 0

        for number in numbers {

            if target == number {

                count += 1

            }

        }

        return count

    }



    static func matchZero(_ numbers:String) -> Int {

        var count = 0

        for number in numbers {

            if number == "0" {

                count += 1

            }

        }

        return count

    }

}



Q2577.main()