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chore: merge pull request #1741 from hyogshin/main
[hyogshin] WEEK 02 solutions
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โ€Žvalid-anagram/hyogshin.py

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'''
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ํ’€์ด:
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- t ๊ธฐ์ค€ for loop ๋Œ๋ฆฌ๊ณ  visited ๋ฐฐ์—ด ๋งŒ๋“ค์–ด์„œ s์˜ ๋ชจ๋“  ๊ณณ์„ ๋ฐฉ๋ฌธํ•˜๊ฒŒ ํ•จ
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- t ์•ˆ์˜ ๋ฌธ์ž๊ฐ€ s์— ์—†๊ณ  visited ๊ฐ€ False ์ธ ๊ฒฝ์šฐ -> visited ๋ฐฐ์—ด True๋กœ ๋ณ€๊ฒฝ
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- but) ์ค‘๋ณต ๋ฌธ์ž๊ฐ€ ์žˆ๋Š” ๊ฒฝ์šฐ index ์‚ฌ์šฉ์— ํ•œ๊ณ„๊ฐ€ ์žˆ์Œ
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- so) t์˜ ๋ฌธ์ž๊ฐ€ s์— ์žˆ๋Š” ๊ฒฝ์šฐ ํ•ด๋‹น ๋ฌธ์ž๋ฅผ s ๋ฐฐ์—ด์—์„œ ํƒˆ๋ฝ์‹œํ‚ด
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์‹œ๊ฐ„ ๋ณต์žก๋„: O(n^2)
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- for loop -> O(n)
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- digit in list -> ์ตœ์•…์˜ ๊ฒฝ์šฐ O(n)
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- ์ตœ์•…์˜ ๊ฒฝ์šฐ O(n^2)
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๊ณต๊ฐ„ ๋ณต์žก๋„: O(n)
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- s ๋ฌธ์ž์—ด์„ ๋ฆฌ์ŠคํŠธ๋กœ ๋งŒ๋“ฌ -> ๋ฌธ์ž์—ด ํฌ๊ธฐ๋Š” ์ž…๋ ฅ๋จ = n -> O(n)
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'''
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class Solution:
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def isAnagram(self, s: str, t: str) -> bool:
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l = list(s)
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for d in t:
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if d in s and d in l:
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l.remove(d)
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else:
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return False
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if not l:
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return True
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else:
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return False

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