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๋ฐฑ์ค€ - ์ขŒํ‘œ ์ •๋ ฌํ•˜๊ธฐ, ํŒŒ์ด์ฌ

by Janger 2021. 12. 5.
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https://www.acmicpc.net/problem/11650

 

11650๋ฒˆ: ์ขŒํ‘œ ์ •๋ ฌํ•˜๊ธฐ

์ฒซ์งธ ์ค„์— ์ ์˜ ๊ฐœ์ˆ˜ N (1 ≤ N ≤ 100,000)์ด ์ฃผ์–ด์ง„๋‹ค. ๋‘˜์งธ ์ค„๋ถ€ํ„ฐ N๊ฐœ์˜ ์ค„์—๋Š” i๋ฒˆ์ ์˜ ์œ„์น˜ xi์™€ yi๊ฐ€ ์ฃผ์–ด์ง„๋‹ค. (-100,000 ≤ xi, yi ≤ 100,000) ์ขŒํ‘œ๋Š” ํ•ญ์ƒ ์ •์ˆ˜์ด๊ณ , ์œ„์น˜๊ฐ€ ๊ฐ™์€ ๋‘ ์ ์€ ์—†๋‹ค.

www.acmicpc.net

 

N = int( input() )

arr = []

for _ in range(N):
	arr.append( list( map(int, input().split()) ) )
	

arr.sort( key=lambda x: (x[0], x[1]) )

for i in arr:
	print( i[0], i[1] )

 

sort๋ฅผ ์ค„ ๋•Œ key=lambda x๋ฅผ (x[0], x[1]) ์ด๋Ÿฐ ์‹์œผ๋กœ ์ •๋ ฌ ์กฐ๊ฑด์„ ์ค„ ์ˆ˜๊ฐ€ ์žˆ์Œ

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