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PR Summary
단속카메라
그리디에 레벨3이라 쫄았는데, 그냥 단순한 문제여서 오히려 당황했습니다
입력된 routes 배열을 오름차순으로 정렬하고, 다음으로 오는 값이 그 전 구간이랑 겹치는지 여부를 확인하고
겹치면 min(이전 값, 현재값의 시작지점) 으로 min_num 값을 바꿔줬고
안겹치면 answer +1 하고 min_num 값에 현재 구간 끝지점을 넣었어요
ISSUE NUMBER