[프로그래머스] 단속카메라

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

코딩테스트 연습 - 단속카메라

 

def solution(routes):
    answer=0
    routes.sort(key=lambda x : x[1])
    camera=-30001

    for route in routes:
        if camera<route[0]:
            camera=route[1]
            print(camera)
            answer+=1

    return answer