[프로그래머스] 푸드 파이트 대회 / java

https://school.programmers.co.kr/learn/courses/30/lessons/134240

프로그래머스

 

---

분석

 

 

 

코드

 

import java.util.*;

class Solution {
    public String solution(int[] food) {
        String answer = "";
        int count = 0;
        ArrayList<Integer> arrList = new ArrayList<>();
        ArrayList<Integer> tmpList = new ArrayList<>();
        
        for(int i=0; i<food.length; i++){
            if(food[i]<=1)  
                continue;
            else
                count = food[i]/2;
            
            for(int j=0; j<count; j++){
                arrList.add(i);
            }
        }
        for(int i=arrList.size()-1; i>=0; i--){
            tmpList.add(arrList.get(i));
        }
        
        arrList.add(0);
        arrList.addAll(tmpList);
        
        for(int item : arrList){
            answer += item + "";
        }
        
        
        return answer;
    }
}