[프로그래머스] Level 2/스킬트리/Java

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

코딩테스트 연습 - 스킬트리

class Solution {
    public int solution(String skill, String[] skill_trees) {
        int answer = 0;
        for(String tree: skill_trees) {
        	System.out.println(tree);
        	tree = tree.replaceAll("[^"+skill+"]", "");
        	System.out.println(tree);
        	if(skill.startsWith(tree)) {
        		answer++;
        	}
        }
        return answer;
    }
}