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lines changed Original file line number Diff line number Diff line change 1+ '''
2+ # 252. Meeting Rooms
3+
4+ - ๊ฐ ํ์๋ ์์ ์๊ฐ๊ณผ ์ข
๋ฃ ์๊ฐ์ ๊ฐ์ง๋ค.
5+ - ํ์ ์๊ฐ์ด ๊ฒน์น๋ ๊ฒฝ์ฐ ํ์๋ฅผ ์งํํ ์ ์๋ค.
6+ - ํ์ ์๊ฐ์ด ๊ฒน์น์ง ์๋ ๊ฒฝ์ฐ ํ์๋ฅผ ์งํํ ์ ์๋ค.
7+
8+ ## ํ์ด
9+
10+ - intervals๋ฅผ ์์ ์๊ฐ์ผ๋ก ์ ๋ ฌํ๋ค.
11+ - ์๊ฐ ๊ฒน์นจ ์ฌ๋ถ๋ฅผ ํ์ธํ๋ค.
12+ - ๊ฒน์น๋ ๊ฒฝ์ฐ False, ๊ฒน์น์ง ์๋ ๊ฒฝ์ฐ True๋ฅผ ๋ฐํํ๋ค.
13+
14+ ## ์๊ฐ ๋ณต์ก๋
15+
16+ ### TC is O(n log n)
17+ - ์ ๋ ฌ ์๊ฐ: O(n log n)
18+ - ๊ฒน์นจ ์ฌ๋ถ ํ์ธ ์๊ฐ: O(n)
19+
20+ ### SC is O(1)
21+ - ์ถ๊ฐ ์ฌ์ฉ ๊ณต๊ฐ ์์
22+
23+ '''
24+ class Solution :
25+ def canAttendMeetings (self , intervals : List [List [int ]]) -> bool :
26+ intervals .sort (key = lambda x : x [0 ])
27+
28+ for i in range (1 , len (intervals )):
29+ if intervals [i ][0 ] < intervals [i - 1 ][1 ]:
30+ return False
31+
32+ return True
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