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๊ด€๋ฆฌ ๋ฉ”๋‰ด

๋ชฉ๋ก์ตœ๋‹จ ๊ฒฝ๋กœ (3)

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[ํŒŒ์ด์ฌ/Python] ์ตœ๋‹จ ๊ฒฝ๋กœ ์•Œ๊ณ ๋ฆฌ์ฆ˜ ์ž‘๋™์›๋ฆฌ ์ดํ•ดํ•˜๊ธฐ ( Floyd-washall )

[ํŒŒ์ด์ฌ/Python] ์ตœ๋‹จ ๊ฒฝ๋กœ ์•Œ๊ณ ๋ฆฌ์ฆ˜ ์ž‘๋™์›๋ฆฌ ์ดํ•ดํ•˜๊ธฐ ( Floyd-washall ) ์„œ๋ก  [ํŒŒ์ด์ฌ/Python] ์ตœ๋‹จ ๊ฒฝ๋กœ ์•Œ๊ณ ๋ฆฌ์ฆ˜ ๊ตฌํ˜„ํ•˜๊ธฐ ( Dijkstra / Bellman-ford / floyd-warshall ) ์ตœ๋‹จ ๊ฒฝ๋กœ ์•Œ๊ณ ๋ฆฌ์ฆ˜ ๊ตฌํ˜„ํ•˜๊ธฐ ( Dijkstra / Bellman-ford / floyd-warshall ) ์„œ๋ก  ์ตœ๋‹จ ๊ฒฝ๋กœ(Shortest Paths)๋Š” ๋‘ ์ •์  ์‚ฌ์ด์˜ ๊ฒฝ๋กœ๋ฅผ ๊ตฌ์„ฑํ•˜๋Š” ๋ชจ๋“  ๊ฐ„์„ ์˜ ๊ฐ€์ค‘์น˜ ํ•ฉ์ด ์ตœ์†Œ์ธ ๊ฒฝ๋กœ๋ฅผ ๋งํ•ฉ๋‹ˆ๋‹ค. ์ตœ๋‹จ ๊ฒฝ.. develop247.tistory.com ์ด์ „ ์‹œ๊ฐ„ ๊ตฌํ˜„ํ•˜์˜€๋˜ Floyd-washall ์•Œ๊ณ ๋ฆฌ์ฆ˜์˜ ์ž‘๋™์›๋ฆฌ์— ๋Œ€ํ•ด ๊ฐ„๋‹จํ•œ ์˜ˆ์ œ๋ฅผ ํ†ตํ•ด ๊ทธ๋ฆผ์œผ๋กœ ์ดํ•ดํ•ด๋ณด๋ ค๊ณ  ํ•ฉ๋‹ˆ๋‹ค. ๋ณธ๋ก  ๋ฌธ์ œ 1. Floyd-washall ์•Œ๊ณ ๋ฆฌ์ฆ˜์„ ์ด์šฉํ•˜์—ฌ ์œ„ ๊ทธ..

ํŒŒ์ด์ฌ 2022. 6. 3. 15:20
[ํŒŒ์ด์ฌ/Python] ์ตœ๋‹จ ๊ฒฝ๋กœ ์•Œ๊ณ ๋ฆฌ์ฆ˜ ์ž‘๋™์›๋ฆฌ ์ดํ•ดํ•˜๊ธฐ ( Dijkstra )

[ํŒŒ์ด์ฌ/Python] ์ตœ๋‹จ ๊ฒฝ๋กœ ์•Œ๊ณ ๋ฆฌ์ฆ˜ ์ž‘๋™์›๋ฆฌ ์ดํ•ดํ•˜๊ธฐ ( Dijkstra ) ์„œ๋ก  [ํŒŒ์ด์ฌ/Python] ์ตœ๋‹จ ๊ฒฝ๋กœ ์•Œ๊ณ ๋ฆฌ์ฆ˜ ๊ตฌํ˜„ํ•˜๊ธฐ ( Dijkstra / Bellman-ford / floyd-warshall ) ์ตœ๋‹จ ๊ฒฝ๋กœ ์•Œ๊ณ ๋ฆฌ์ฆ˜ ๊ตฌํ˜„ํ•˜๊ธฐ ( Dijkstra / Bellman-ford / floyd-warshall ) ์„œ๋ก  ์ตœ๋‹จ ๊ฒฝ๋กœ(Shortest Paths)๋Š” ๋‘ ์ •์  ์‚ฌ์ด์˜ ๊ฒฝ๋กœ๋ฅผ ๊ตฌ์„ฑํ•˜๋Š” ๋ชจ๋“  ๊ฐ„์„ ์˜ ๊ฐ€์ค‘์น˜ ํ•ฉ์ด ์ตœ์†Œ์ธ ๊ฒฝ๋กœ๋ฅผ ๋งํ•ฉ๋‹ˆ๋‹ค. ์ตœ๋‹จ ๊ฒฝ.. develop247.tistory.com ์ด์ „ ์‹œ๊ฐ„ ๊ตฌํ˜„ํ•˜์˜€๋˜ Dijkstra ์•Œ๊ณ ๋ฆฌ์ฆ˜์˜ ์ž‘๋™์›๋ฆฌ์— ๋Œ€ํ•ด ๊ฐ„๋‹จํ•œ ์˜ˆ์ œ๋ฅผ ํ†ตํ•ด ๊ทธ๋ฆผ์œผ๋กœ ์ดํ•ดํ•ด๋ณด๋ ค๊ณ  ํ•ฉ๋‹ˆ๋‹ค. ๋ณธ๋ก  ๋ฌธ์ œ 1. Dijkstra ์•Œ๊ณ ๋ฆฌ์ฆ˜์„ ์ด์šฉํ•˜์—ฌ ์œ„ ๊ทธ๋ž˜ํ”„์˜ v4๋ฅผ ์‹œ์ž‘์œผ๋กœ ํ•˜๋Š”..

ํŒŒ์ด์ฌ 2022. 6. 2. 23:52
[ํŒŒ์ด์ฌ/Python] ์ตœ๋‹จ ๊ฒฝ๋กœ ์•Œ๊ณ ๋ฆฌ์ฆ˜ ๊ตฌํ˜„ํ•˜๊ธฐ ( Dijkstra / Bellman-ford / floyd-warshall )

์ตœ๋‹จ ๊ฒฝ๋กœ ์•Œ๊ณ ๋ฆฌ์ฆ˜ ๊ตฌํ˜„ํ•˜๊ธฐ ( Dijkstra / Bellman-ford / floyd-warshall ) ์„œ๋ก  ์ตœ๋‹จ ๊ฒฝ๋กœ(Shortest Paths)๋Š” ๋‘ ์ •์  ์‚ฌ์ด์˜ ๊ฒฝ๋กœ๋ฅผ ๊ตฌ์„ฑํ•˜๋Š” ๋ชจ๋“  ๊ฐ„์„ ์˜ ๊ฐ€์ค‘์น˜ ํ•ฉ์ด ์ตœ์†Œ์ธ ๊ฒฝ๋กœ๋ฅผ ๋งํ•ฉ๋‹ˆ๋‹ค. ์ตœ๋‹จ ๊ฒฝ๋กœ๋Š” ๋‹จ์ผ ์‹œ์ž‘์  ์ตœ๋‹จ ๊ฒฝ๋กœ์™€ ๋ชจ๋“  ์Œ ์ตœ๋‹จ ๊ฒฝ๋กœ, ๊ทธ๋ฆฌ๊ณ  ์‹ธ์ดํด์ด ์—†๋Š” ๊ทธ๋ž˜ํ”„์˜ ์ตœ๋‹จ ๊ฒฝ๋กœ๋กœ ๊ตฌ๋ถ„๋ฉ๋‹ˆ๋‹ค. ๋‹จ์ผ ์‹œ์ž‘์  ์ตœ๋‹จ๊ฒฝ๋กœ๋Š” ๋‹จ์ผ ์‹œ์ž‘์ ์œผ๋กœ๋ถ€ํ„ฐ ๊ฐ ์ •์ ์— ์ด๋ฅด๋Š” ์ตœ๋‹จ๊ฒฝ๋กœ๋ฅผ ๊ตฌํ•˜๊ณ , ๋ชจ๋“  ์Œ ์ตœ๋‹จ๊ฒฝ๋กœ๋Š” ๋ชจ๋“  ์ •์  ์Œ ์‚ฌ์ด์˜ ์ตœ๋‹จ๊ฒฝ๋กœ๋ฅผ ๋ชจ๋‘ ๊ตฌํ•ฉ๋‹ˆ๋‹ค. ๊ทธ ์ค‘์—์„œ๋„ ๋‹จ์ผ ์‹œ์ž‘์  ์ตœ๋‹จ ๊ฒฝ๋กœ์ธ ๋‹ค์ต์ŠคํŠธ๋ผ ์•Œ๊ณ ๋ฆฌ์ฆ˜(Dijkstra Algorithm)๊ณผ ๋ฒจ๋งŒ-ํฌ๋“œ ์•Œ๊ณ ๋ฆฌ์ฆ˜(Bellman-ford Algorithm), ๊ทธ๋ฆฌ๊ณ  ๋ชจ๋“  ์Œ ์ตœ๋‹จ๊ฒฝ๋กœ์ธ ํ”Œ๋กœ์ด๋“œ-์›Œ์ƒฌ ์•Œ๊ณ ๋ฆฌ์ฆ˜(F..

ํŒŒ์ด์ฌ 2022. 6. 1. 20:16