[프로그래머스] 스킬트리 - Java

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

 

문제설명

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문제 풀이

class Solution {
    public int solution(String skill, String[] skill_trees) {
        int answer = 0;
        
        for (String s : skill_trees) {
			String s1 = s.replaceAll("[^"+skill+"]", "");
			if (skill.startsWith(s1)) answer++;
		}
        
        return answer;
    }
}