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Merge pull request #9 from JYP0824/main
JYP / 3์›” 4์ฃผ์ฐจ / 3๋ฌธ์ œ
2 parents 05c8c9f + e5914d6 commit ad9f46d

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a = int(input())
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sts = list(map(int, input().split()))
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stack = []
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target = 1
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for st in sts:
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stack.append(st)
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while stack and stack[-1] == target:
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stack.pop()
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target +=1
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if stack:
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print('Sad')
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else:
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print('Nice')

โ€ŽJYP/์นด๋“œ 2.pyโ€Ž

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# ๋งˆ์ง€๋ง‰ ๋‚จ์€ ์นด๋“œ ๋ฒˆํ˜ธ ๊ตฌํ•˜๋Š” ๋ฌธ์ œ
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# ๊ฐ€์žฅ ๋จผ์ € ์นด๋“œ์˜ ๊ฐœ์ˆ˜๋ฅผ ๋ถˆ๋Ÿฌ์˜จ ๋’ค, dequeํ•จ์ˆ˜๋ฅผ ์ด์šฉํ•ด ๋นˆ ํ๋ฅผ ์ƒ์„ฑํ•œ๋‹ค
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import sys
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from collections import deque
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a = int(sys.stdin.readline())
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deq = deque()
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# ์ดํ›„, for๋ฌธ์„ ํ†ตํ•ด 1๋ถ€ํ„ฐ a๊นŒ์ง€์˜ ์ˆ˜(์นด๋“œ ๋ฒˆํ˜ธ)๋ฅผ ํ์— ๋„ฃ๋Š”๋‹ค
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for i in range(a):
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deq.append(i+1)
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# while๋ฌธ์„ ํ†ตํ•ด deq๊ฐ€ 1์ด ๋  ๋•Œ๊นŒ์ง€ ๊ฐ€์žฅ ์œ„ ์ฐจ๋“œ๋ฅผ ๋ฒ„๋ฆฌ๊ณ , ์ œ์ผ ์œ„ ์นด๋“œ๋ฅผ ๊ฐ€์žฅ ์•„๋ž˜๋กœ ์˜ฎ๊ธด๋‹ค
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while len(deq) > 1:
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deq.popleft()
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deq.append(deq.popleft())
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print(deq.pop())

โ€ŽJYP/ํ 2.pyโ€Ž

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# sys๋กœ ๋ช…๋ น ์ˆ˜๋ฅผ ๋ฐ›์€ ๋’ค, deque๋ฅผ ํ†ตํ•ด ๋น„์–ด ์žˆ๋Š” ํ๋ฅผ ์ƒ์„ฑํ•œ๋‹ค
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# ๋ช…๋ น ์ฒ˜๋ฆฌ์— ํ•„์š”ํ•œ ๊ธฐ๋Šฅ์„ ๊ตฌํ˜„ํ•œ ๋’ค, ์ž…๋ ฅ๋œ ๋ช…๋ น ์ˆ˜์ธ a ๋งŒํผ for๋ฌธ์„ ํ†ตํ•ด ๋ฐ˜๋ณตํ•œ๋‹ค
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import sys
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from collections import deque
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a = int(sys.stdin.readline())
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deq = deque()
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for _ in range(a):
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b = sys.stdin.readline().split()
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# deq์— ์ถ”๊ฐ€
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if b[0] == 'push':
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deq.append(int(b[1]))
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# ๊ฐ€์žฅ ์•ž์˜ ์ˆ˜ ์ถœ๋ ฅ
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if b[0] == 'pop':
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if deq:
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print(deq.popleft())
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else:
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print(-1)
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# ํ์— ๋“  ์ •์ˆ˜ ๊ฐœ์ˆ˜ ์ถœ๋ ฅ
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if b[0] == 'size':
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print(len(deq))
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# ๋น„์—ˆ๋‹ค๋ฉด 0, ์•„๋‹ˆ๋ฉด 1
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if b[0] == 'empty':
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if deq:
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print('0')
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else:
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print('1')
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# ํ์˜ ๊ฐ€์žฅ ์•ž ์ •์ˆ˜ ์ถœ๋ ฅ, ์ •์ˆ˜๊ฐ€ ์—†์„ ๊ฒฝ์šฐ -1 ์ถœ๋ ฅ
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if b[0] == 'front':
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if deq:
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print(deq[0])
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else:
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print(-1)
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# ํ์˜ ๊ฐ€์žฅ ๋’ค ์ •์ˆ˜ ์ถœ๋ ฅ, ์—†์„ ๊ฒฝ์šฐ -1 ์ถœ๋ ฅ
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if b[0] == 'back':
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if deq:
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print(deq[-1])
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else:
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print(-1)

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