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๐Ÿ“๋ฌธ์ œ ํ’€์ด/๐ŸงฉBaekjoon

[Python] ๋ฐฑ์ค€ 1181 ๋‹จ์–ด ์ •๋ ฌ | ๋‚ด์žฅํ•จ์ˆ˜

2023. 1. 7. 23:45

~์‹ค๋ฒ„ 5~

๋‚ด์žฅ ํƒ€ํŒŒ!

๋‚ด์žฅ ํŒŒ๊ดด!

 

 

๋ฌธ์ œ ํ•ด๊ฒฐ์˜ ํฌ์ธํŠธ( ๋‚ด์žฅ ํ•จ์ˆ˜ )

- input ํ•จ์ˆ˜๋Š” ์‹œ๊ฐ„์ด ์งฑ ๋งŽ์ด ๊ฑธ๋ฆฐ๋‹ค

- set ํ•จ์ˆ˜๋กœ ์ค‘๋ณต ์ œ๊ฑฐ

- sort ํ•จ์ˆ˜ ์ปค์Šคํ„ฐ๋งˆ์ด์ง•


1. ์‹œ๊ฐ„ ์ค„์ด๊ธฐ | ์‹œ๊ฐ„ ์ดˆ๊ณผ ํ”ผํ•˜๊ธฐ | input ๋Œ€์‹  readline

import sys

n = int(sys.stdin.readline())
words = []

for _ in range(n):
	words.append(sys.stdin.readline())

sys ๋ชจ๋“ˆ์„ importํ•˜์—ฌ sys.stdin.readline()์„ ์‚ฌ์šฉํ•˜๋ฉด input()๋ณด๋‹ค ์‹œ๊ฐ„์„ ํ™• ์ค„์ผ ์ˆ˜ ์žˆ์Šต๋‹ˆ๋‹ค..!

 

์ฒ˜์Œ์— ์ž…๋ ฅ์„ ๋ฐ›์„ ๋•Œ ๋ฆฌ์ŠคํŠธ์˜ ํฌ๊ธฐ๋ฅผ ์„ค์ •ํ•˜๊ณ  (ex. list[[0]*50 for i in range(20000)]) ํ–ˆ๋Š”๋ฐ ์™„์ „ํžˆ ํ—ˆํŠผ์ง“์ด์—ˆ๋‹ค.

ํŒŒ์ด์ฌ์ด ์•„๋‹Œ ์–ธ์–ด๋ฅผ ์‚ฌ์šฉํ•  ๋•Œ ํ•ญ์ƒ ์ž๋ฃŒ๊ตฌ์กฐ์˜ ํฌ๊ธฐ๋‚˜ ๋ณ€์ˆ˜์˜ ํƒ€์ž…์„ ๋ช…์‹œํ•˜๋Š” ๋ฒ„๋ฆ‡์ด ๋‚จ์•„์žˆ๋Š” ๋“ฏํ•˜๋‹ค

 

 

2. set ํ•จ์ˆ˜๋กœ ์ค‘๋ณต ์ œ๊ฑฐ

set_words = set(words)
words = list(set_words)

์ž๋ฃŒ๊ตฌ์กฐ์—๋Š” python์—์„œ ๋งŽ์ด ์‚ฌ์šฉํ•˜๋Š” LIST๋ฟ๋งŒ ์•„๋‹ˆ๋ผ SET๋„ ์žˆ๋Š”๋ฐ ์ด๋Š” ์ค‘๋ณต ๊ฐ’์„ ํ—ˆ์šฉํ•˜์ง€ ์•Š์•„์„œ list๋ฅผ setํ™” ํ•˜๊ฒŒ ๋˜๋ฉด ์ž๋™์œผ๋กœ ์ค‘๋ณต๊ฐ’์ด ์ œ๊ฑฐ๋˜์–ด ๋ณ€์ˆ˜๋กœ ์ €์žฅํ•œ๋‹ค.

 

์ด๋ฅผ sortํ•จ์ˆ˜๋กœ ์ฒ˜๋ฆฌ(์ •๋ ฌ) ํ•˜๊ธฐ ์œ„ํ•ด์„œ ๋‹ค์‹œ listํ˜•์œผ๋กœ ๋ณ€ํ™˜ํ•˜์˜€๋‹ค.

 

3. Sort ํ•จ์ˆ˜ ์ปค์Šคํ„ฐ๋งˆ์ด์ง•

words.sort()
words.sort(key = len)

for i in words:
	print(i)

list.sort()์‚ฌ์šฉํ•˜์—ฌ strํƒ€์ž…์˜ ๊ฐ’๋“ค์„ ๋จผ์ € ์ •๋ ฌํ•œ๋‹ค.

 

์‚ฌ์ „์ˆœ์œผ๋กœ ์ •๋ ฌ ํ›„ ๊ธธ์ด๊ฐ€ ์ž‘์€ ๊ฒƒ๋ถ€ํ„ฐ ๋‹ค์‹œ ์ •๋ ฌํ•œ๋‹ค.

์ด๋•Œ sort์˜ ์˜ต์…˜ ์ค‘ key๋ฅผ ์‚ฌ์šฉํ•˜๋Š”๋ฐ, function์„ ๋„˜๊ฒจ์ฃผ๋ฉด ๋œ๋‹ค(๊ธธ์ด ์˜ค๋ฆ„์ฐจ์ˆœ์ด๋ฏ€๋กœ len)

 

sort์— ๋Œ€ํ•œ ๋” ์ž์„ธํ•œ ๋‚ด์šฉ์€ ์—ฌ๊ธฐ๋ฅผ ํด๋ฆญ

 

 

 

<์ตœ์ข… ์ฝ”๋“œ>

import sys

n = int(sys.stdin.readline())
words = []

for _ in range(n):
    words.append(sys.stdin.readline().strip()) #strip() : white space ์ œ๊ฑฐ

set_words = set(words)
words = list(set_words)

words.sort()
words.sort(key=len)

for i in words:
    print(i)

 

 


 

 

 

์ฐธ์กฐํ•œ ์‚ฌ์ดํŠธ & ๋ณธ์ธ Notion ํŽ˜์ด์ง€

https://velog.io/@1204jh/1181

 

[Python / ํŒŒ์ด์ฌ] ๋ฐฑ์ค€ 1181๋ฒˆ

๋ฐฑ์ค€ 1181๋ฒˆ ๋ฌธ์ œ ํ’€์ด

velog.io

https://sin-young.notion.site/E1181-af14b5381c8b4681b007656dc6a1331b

 

E1181

์ œ์ถœ ์ฝ”๋“œ

sin-young.notion.site

 

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