[Programmers] (2019 KAKAO BLIND RECRUITMENT) Lv 2. 오픈채팅방

 

https://school.programmers.co.kr/learn/courses/30/lessons/42888

프로그래머스

 

const Show = {
    Enter: "님이 들어왔습니다.",
    Leave: "님이 나갔습니다."
};

function solution(record) {
    const nicknName = {};
    const output = [];

    record.forEach((e) => {
        const [execution, id, name] = e.split(' ');

        if (["Enter", "Change"].includes(execution)) nicknName[id] = name;
        if (["Enter", "Leave"].includes(execution)) output.push([execution, id]);
    });
    return output.map(([execution, id]) => `${nicknName[id]}${Show[execution]}`);
}

GitHub : https://github.com/developeSHG/Algorithm-Baekjoon_Programmers/tree/main/%ED%94%84%EB%A1%9C%EA%B7%B8%EB%9E%98%EB%A8%B8%EC%8A%A4/lv2/42888.%E2%80%85%EC%98%A4%ED%94%88%EC%B1%84%ED%8C%85%EB%B0%A9

GitHub - developeSHG/Algorithm-Baekjoon_Programmers: 백준 and 프로그래머스 소스코드