[백준] 4564 숫자 카드놀이 - Implementation / Java

• 문제 링크

https://www.acmicpc.net/problem/4564

 

• 풀이 코드

import java.io.BufferedWriter;
import java.io.IOException;
import java.io.OutputStreamWriter;

public class Main {

    public static void main(String[] args) throws IOException {
        BufferedWriter bw = new BufferedWriter(new OutputStreamWriter(System.out));
        StringBuilder sb = new StringBuilder();

        int n;
        while ((n = read()) != 0) {
            sb.append(n);
            while (n > 9) {
                int m = 1;
                do m *= n % 10; while ((n /= 10) > 0);
                sb.append(' ').append(n = m);
            }
            sb.append('\n');
        }

        bw.write(sb.toString());
        bw.flush();
    }

    private static int read() throws IOException {
        int c, n = System.in.read() & 15;
        while ((c = System.in.read()) > 32) n = (n << 3) + (n << 1) + (c & 15);

        return n;
    }

}