/ ALGORITHM

프로그래머스 - 같은 숫자는 싫어

image-20230125143221544

from collections import deque

def solution(arr):
    queue = deque(arr)
    present = queue.popleft()
    answer = [present]
    
    while queue:
        front=queue.popleft()
        
        if front!=present:
            present=front
            answer.append(front)
            
    return answer