[Python] 같은 숫자는 싫어

https://school.programmers.co.kr/learn/courses/30/lessons/12906

프로그래머스

def solution(arr):
    answer = []
    
    for i in range(len(arr)):
        if answer == []:
            answer.append(arr[i])
            
        elif answer[-1] == arr[i]:
            continue
            
        else:
            answer.append(arr[i])

    return answer