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์ฝ๋ ์์ฑํ๊ธฐ
์ฝ๋ ์์ฑํ๊ธฐimport java.util.HashMap;
import java.util.Map;
public class Programmers_42576 {
public String solution(String[] participant, String[] completion) {
String answer ="";
Map<String, Integer> map = new HashMap<>();
for(String player : participant)
map.put(player, map.getOrDefault(player, 0) + 1);
for(String player : completion)
map.put(player, map.get(player) -1);
for(String key : map.keySet()) {
if(map.get(key) != 0) {
return key;
}
}
return answer;
}
}
Java
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| ์ฝ๋ ์ค๋ช
ํ๊ธฐ
์ฝ๋ ์ค๋ช
ํ๊ธฐ