(Python, Java) 프로그래머스 - 핸드폰 번호 가리기

04 Jan 2022 in Algorithm on Programmers, Level1

[문제 링크]

Python 풀이

def solution(phone_number):
    cnt = len(phone_number)
    return "*" * (cnt - 4) + phone_number[cnt - 4:]

Java 풀이

class Solution {
    public String solution(String phone_number) {
        StringBuilder sb = new StringBuilder();
        int length = phone_number.length();
        for (int i = 0; i < length - 4; i++)
            sb.append("*");
        sb.append(phone_number.substring(length - 4));
        return sb.toString();

    }
}