[Programmers] Python 오픈채팅방

 

https://school.programmers.co.kr/learn/courses/30/lessons/42888?language=python3 

프로그래머스

 

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def solution(record):
    user = {}    
    answer = []
    op = {"Enter" : "님이 들어왔습니다.", "Leave": "님이 나갔습니다."}
    
    for rec in record:
        if len(rec.split()) > 2:
            user[rec.split()[1]] = rec.split()[2]
    
    for rec in record:
        if(rec.split()[0] == "Change"): continue
        answer.append(user[rec.split()[1]] + op[rec.split()[0]])
                   
    return answer