Level2) 위장
2021. 5. 3. 17:54ㆍPS/programmers
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import java.util.*;
public class Level2_위장 {
public static int solution(String[][] clothes) {
Map<String, Integer> map = new HashMap<>();
for (String[] str: clothes) {
String key = str[1];
map.put(key, map.getOrDefault(key, 0) + 1);
}
int answer = 1;
for (int value : map.values()) {
answer *= (value + 1);
}
return answer - 1;
}
public static void main(String[] args) {
String[][] clotehs = {{"yellow_hat", "headgear"}, {"blue_sunglasses", "eyewear"}, {"green_turban", "headgear"}};
System.out.println(solution(clotehs));
}
}
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cs |
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