[프로그래머스] Lv.2 스킬트리

 

[문제]

https://school.programmers.co.kr/learn/courses/30/lessons/49993

프로그래머스

 

 

[소스 코드]

class Solution {
    public int solution(String skill, String[] skill_trees) {
        int answer = 0;
        for(String tree : skill_trees){
            String filter = "";
            for(char c : tree.toCharArray()){
                String s = String.valueOf(c);
                if(skill.contains(s)){
                    filter += s;
                }
            }
            if(skill.startsWith(filter)) answer++;
        }
        return answer;
    }
}