18 lines
534 B
Java
18 lines
534 B
Java
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// [문제 링크]: https://school.programmers.co.kr/learn/courses/30/lessons/42578
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import java.util.HashMap;
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import java.util.HashSet;
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import java.util.ArrayList;
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class Solution {
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public int solution(String[][] clothes) {
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int answer = 1;
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HashMap<String,Integer> hss = new HashMap<>();
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for(String[] sett : clothes){
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hss.put(sett[1],hss.getOrDefault(sett[1],0)+1);
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}
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for(String key : hss.keySet()){
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answer*=(hss.get(key)+1);
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}
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return answer-1;
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}
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}
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