[programmers][X] 가장 큰 수

25 Jun 2023 in Algorithm on Algorithm

https://school.programmers.co.kr/learn/courses/30/lessons/42746

import java.util.*;

class Solution {
    public String solution(int[] numbers) {
        String[] strNumbers = Arrays.stream(numbers).mapToObj(String::valueOf).toArray(String[]::new);

        Arrays.sort(strNumbers, (a, b) -> (b + a).compareTo(a + b));

        String answer = String.join("",strNumbers);

        return answer.startsWith("0") ? "0" : answer;
    }
}