[Java]프로그래머스 Lv. 0 옹알이 (1)

https://school.programmers.co.kr/learn/courses/30/lessons/120956

프로그래머스

나의 풀이

import java.util.ArrayList;
import java.util.List;

class Solution {
    public int solution(String[] babbling) {
        int answer = 0;
        List<String> list = new ArrayList<>(){
            {
                add("aya");
                add("ye");
                add("woo");
                add("ma");
            }
        };

        for (int i = 0; i < babbling.length; i++){
            for (String s : list){
                babbling[i] = babbling[i].replaceFirst(s, "*");
            }
            babbling[i] = babbling[i].replace("*", "");
        }

        for (String s : babbling){
            if (s.equals("")) answer++;
        }
        return answer;
    }
}

다른 풀이

class Solution {
    public int solution(String[] babbling) {
        int answer = 0;
        for(int i=0; i<babbling.length; i++){
            if(babbling[i].matches("^(aya(?!aya)|ye(?!ye)|woo(?!woo)|ma(?!ma))+$")){
                answer++;
            }
        }
        return answer;
    }
}