[프로그래머스/Java] 옹알이 (1)

-Code

class Solution {
    public int solution(String[] babbling) {
        String[] validation = {"aya", "ye", "woo", "ma"};
        int answer = 0;

        for (String el : babbling) {
            for (String val : validation) {
                el = el.replace(val, "0");
            }
            if (el.replace("0", "").isEmpty()) answer++;
        }

        return answer;
    }
}