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[python] SWEA - 6057. ๊ทธ๋ž˜ํ”„์˜ ์‚ผ๊ฐํ˜•
Algorithm Problem/Python

[python] SWEA - 6057. ๊ทธ๋ž˜ํ”„์˜ ์‚ผ๊ฐํ˜•

2020. 11. 22. 01:55
๋ฐ˜์‘ํ˜•

๐Ÿค”๋ฌธ์ œ ํ•ด๊ฒฐ

  • D3 | ๊ทธ๋ž˜ํ”„

๐Ÿ’จ ๋ฌธ์ œ ๊ทธ๋Œ€๋กœ i ์™€ j ์™€ k ๊ฐ€ ์—ฐ๊ฒฐ๋œ ( ์‚ผ๊ฐํ˜• ) ๊ฐฏ์ˆ˜๋ฅผ ์ฐพ๋Š”๊ฒƒ

๐Ÿ’จ ๋ฌธ์ œ์—์„œ i < j < k ๊ฐ€ ์™œ ์žˆ๋Š”์ง€๋Š” ๋ชจ๋ฅด๊ฒ ์ง€๋งŒ 3 ์ค‘ for ๋ฌธ์œผ๋กœ i, j ,k ๋ฅผ ๊ณจ๋ผ์„œ ์„œ๋กœ๊ฐ€ ์—ฐ๊ฒฐ๋˜์–ด ์žˆ๋Š”์ง€ ํ™•์ธ

 

๐Ÿ’ป์†Œ์Šค ์ฝ”๋“œ

from _collections import defaultdict

for tc in range(int(input())):
    N, M = map(int, input().split())

    adj = defaultdict(set)
    for _ in range(M):
        s, e = map(int, input().split())
        adj[s].add(e)
        adj[e].add(s)

    total = 0
    for i in range(1, N + 1):
        for j in range(i + 1, N + 1):
            for k in range(j + 1, N + 1):
                if i in adj[j] and j in adj[k] and k in adj[i]:
                    total += 1

    print(f'#{tc + 1} {total}')
 

๐Ÿ“•๋ฌธ์ œ ํ™•์ธ

์ถœ์ฒ˜: SW Expert Academy

 

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swexpertacademy.com

 

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