[프로그래머스] 단속카메라 (Python)

📕 문제

https://programmers.co.kr/learn/courses/30/lessons/42884

코딩테스트 연습 - 단속카메라

 

💡 풀이법

def solution(routes):
    answer = 1
    routes.sort(key = lambda x:x[1])
    camera = routes[0][1]
    for route in routes[1:]:
        if camera < route[0]:
            camera = route[1]
            answer += 1
    return answer