위장

import java.util.*;
class Solution {
    public int solution(String[][] clothes) {
	int answer = 0;
	      HashMap<String,Integer>map=new HashMap<>();
	        for(int i=0; i<clothes.length; i++){
	            for(int j=1; j<clothes[i].length; j++){
	                map.put(clothes[i][1],map.getOrDefault(clothes[i][1], 0)+1);
	            }
	        }
	        int count=1;
	        for(String x: map.keySet()){
	            count*=map.get(x)+1   ; 
	        }
	        answer=count-1;
        return answer;
    }
}