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๋ถ„ํ• ์ •๋ณต

์ฟผ๋“œํŠธ๋ฆฌ

https://www.acmicpc.net/problem/1992

  • ํŠน์ด์ : X
  • ์˜ˆ์™ธ์ฒ˜๋ฆฌ: X
  • ์œ ํ˜•๋ถ„์„: ๋ถ„ํ• ์ •๋ณต์€ ๊ฐ€์žฅ ๋ง๋‹จ ์ผ€์ด์Šค๋ฅผ ๋จผ์ € ๊ตฌํ˜„ํ•ด๋†“๊ณ  ์ฐจ๋ก€์ฐจ๋ก€ ์˜ฌ๋ผ๊ฐ€๋Š” ๊ฒƒ์ด ํŽธํ•œ ๊ฒƒ ๊ฐ™๋‹ค.

๊ณฑ์…ˆ

https://www.acmicpc.net/problem/1629

  • ํŠน์ด์ : ๋‹จ์ˆœํ•˜๊ฒŒ ํ’€๋ฉด ์‹œ๊ฐ„์ดˆ๊ณผ ๋‚จ
  • ์œ ํ˜•๋ถ„์„: ๋ถ„ํ• ์ •๋ณต์—์„œ ๋™์ผํ•œ ์—ฐ์‚ฐ ๊ฒฐ๊ณผ๋ฅผ ์‚ฌ์šฉํ•  ๊ฒฝ์šฐ ๋ฏธ๋ฆฌ ๋ถ„ํ• ์ •๋ณตํ•œ ๊ฒฐ๊ณผ๋ฅผ temp๋กœ ์ €์žฅํ•œ๋‹ค.
  • ์ƒˆ๋กœ ์•Œ๊ฒŒ๋œ ์ : (n*n)%3 = (n%3)*(n%3)%3

DFS/BFS

์ดŒ์ˆ˜๊ณ„์‚ฐ

https://www.acmicpc.net/problem/2644

  • ํŠน์ด์ : X
  • ์˜ˆ์™ธ์ฒ˜๋ฆฌ: X
  • ๋А๋‚€์ : X

์Šคํƒ€ํŠธ๋งํฌ

https://www.acmicpc.net/problem/5014

  • ํŠน์ด์ : X
  • ์œ ํ˜•๋ถ„์„: BFS๋ฅผ ํ•  ๋•Œ ํ์—์„œ ๋บ€ ๋’ค์— ๋ฐฉ๋ฌธ ํ‘œ์‹œ๋ฅผ ํ•˜๊ฒŒ ๋˜๋ฉด ๊ฐ™์€ ์ •์ ์ด ๋™์‹œ์— ํ์— ๋“ค์–ด๊ฐ„ ๋’ค, ๋‚˜์˜จ ๋’ค ๊ทธ์— ์—ฐ๊ฒฐ๋œ ๊ฐ™์€ ์ •์ ์„ ์ค‘๋ณตํ•ด์„œ ๋„ฃ๊ณ , ๊ทธ ์ •์ ๋“ค์ด ๋˜ ๊ฐ™์€ ์ •์ ์„ ์ค‘๋ณตํ•ด์„œ ๋„ฃ๊ณ ... ํ•˜๋Š” ๊ฒƒ์ด ๋ฐ˜๋ณต๋˜์–ด ์ง€์ˆ˜ ์‹œ๊ฐ„ ๋ณต์žก๋„๊ฐ€ ๋œ๋‹ค.

์•ˆ์ „์˜์—ญ

https://www.acmicpc.net/problem/2468

  • ํŠน์ด์ : DFS์™€ ์ „์ฒดํƒ์ƒ‰์„ ๊ฐ™์ด ํ•ด์•ผํ•จ.
  • ์˜ˆ์™ธ์ฒ˜๋ฆฌ: ๋น„๊ฐ€ ์•ˆ์˜ฌ ๋•Œ๋ฅผ ์ƒ๊ฐํ•ด์•ผํ•จ. ๋”ฐ๋ผ์„œ ๋‹ต์€ ๋ฌด์กฐ๊ฑด 1์ด์ƒ์ด ๋‚˜์™€์•ผ ํ•จ.
  • ์˜ˆ์™ธ์ฒ˜๋ฆฌ: sys.setrecursionlimit(100000)
  • ์ƒˆ๋กœ ์•Œ๊ฒŒ ๋œ ์ : 2์ฐจ์› ๋ฐฐ์—ด์˜ ์ตœ๋Œ“๊ฐ’ (m = max(map(max, graph)))

์ด๋ถ„ํƒ์ƒ‰

๋‚˜๋ฌด ์ž๋ฅด๊ธฐ

https://www.acmicpc.net/problem/2805