프로그래머스 코딩테스트 연습 Level-1 체육복 [ Java ]

체육복.java

import java.util.*;
class Solution {
    public int solution(int n, int[] lost, int[] reserve) {
        LinkedList<Integer> llLost = new LinkedList<>();
        LinkedList<Integer> llReserve = new LinkedList<>();
        
        Arrays.sort(lost);
        Arrays.sort(reserve);
        for (int i : lost) llLost.add(i);
        for (int i : reserve) llReserve.add(i);
        
        for(int i=0; i<llLost.size(); i++)
            for(int j=0; j<llReserve.size(); j++)
                if(llLost.get(i)==llReserve.get(j)){
                    llLost.remove(i);
                    llReserve.remove(j);
                    i--;
                    break;
                }
        
        for(int i=0; i<llReserve.size(); i++)
            for(int j=0; j<llLost.size(); j++)
                if(llReserve.get(i)-1 == llLost.get(j) || llReserve.get(i)+1 == llLost.get(j)){
                    llLost.remove(j);
                    break;
                }
        return n-llLost.size();
    }
}