[프로그래머스/Java] 푸드 파이트 대회

-Code

class Solution {
    public String solution(int[] food) {
        StringBuilder answer = new StringBuilder();
        int water = food[0] + 1;
        for (int i = 1; i < food.length; i++) {
            answer.append(String.valueOf(i).repeat(food[i] / water));
        }
        StringBuilder reverse = new StringBuilder(answer).reverse();
        answer.append(0);
        answer.append(reverse);
        return answer.toString();
    }
}