프로그래머_완주하지 못한 선수
/*import java.util.*; class Solution { public String solution(String() participant, String() completion) { String answer = “”; Map<String,Integer> map = new HashMap<>(); for(String c : completion) { map.put(c,map.getOrDefault(c,0)+1); } for(String p : participant) { if(!map.containsKey(p)||map.get(p)==0) { return p; } else{ map.put(p, map.get(p)-1); } } return answer; } } */ import java.util.HashMap; import java.util.Iterator; import java.util.Map; class … Read more