๋„ˆ๋น„ ์šฐ์„  ํƒ์ƒ‰ 1

[์•Œ๊ณ ๋ฆฌ์ฆ˜] BFS(๋„ˆ๋น„ ์šฐ์„  ํƒ์ƒ‰) ๊ฐœ๋… ๋ฐ ๊ตฌํ˜„(ํŒŒ์ด์ฌ)

๋ชฉ์ฐจ BFS์˜ ๊ฐœ๋… BFS์˜ ์žฅ๋‹จ์  BFS์˜ ์‹œ๊ฐ„ ๋ณต์žก๋„ BFS์˜ ๊ตฌํ˜„ BFS(๋„ˆ๋น„ ์šฐ์„  ํƒ์ƒ‰)์ด๋ž€? BFS(Breadth First Search) ๋˜๋Š” ๋„ˆ๋น„ ์šฐ์„  ํƒ์ƒ‰์ด๋ผ๊ณ  ํ•จ ์‹œ์ž‘ ์ •์ ์œผ๋กœ๋ถ€ํ„ฐ ๊ฐ€๊นŒ์šด ์ •์ ์„ ๋จผ์ € ๋ฐฉ๋ฌธํ•˜๋Š” ๊ทธ๋ž˜ํ”„ ํƒ์ƒ‰ ๋ฐฉ๋ฒ• ํ(queue)๋ฅผ ์ด์šฉํ•ด ๋ฐฉ๋ฌธํ•œ ์ •์ ๋“ค์„ ์ฐจ๋ก€๋กœ ์ €์žฅํ•˜๊ณ  ๊บผ๋ƒ„ BFS์˜ ๋™์ž‘ ๊ณผ์ • ํƒ์ƒ‰ ์‹œ์ž‘ ์ •์ ์„ ํ์— ์‚ฝ์ž…ํ•˜๊ณ  ๋ฐฉ๋ฌธ ์ฒ˜๋ฆฌ๋ฅผ ํ•ฉ๋‹ˆ๋‹ค. ํ์—์„œ ์ •์ ์„ ๊บผ๋‚ธ ๋’ค์— ํ•ด๋‹น ์ •์ ์˜ ์ธ์ ‘ ์ •์  ์ค‘์—์„œ ๋ฐฉ๋ฌธํ•˜์ง€ ์•Š์€ ์ •์ ์„ ๋ชจ๋‘ ํ์— ์‚ฝ์ž…ํ•˜๊ณ  ๋ฐฉ๋ฌธ ์ฒ˜๋ฆฌ๋ฅผ ํ•ฉ๋‹ˆ๋‹ค. ๋” ์ด์ƒ 2๋ฒˆ์˜ ๊ณผ์ •์„ ์ˆ˜ํ–‰ํ•  ์ˆ˜ ์—†์„ ๋•Œ๊นŒ์ง€ ๋ฐ˜๋ณตํ•ฉ๋‹ˆ๋‹ค. BFS์˜ ์žฅ๋‹จ์  ์žฅ์  ์‹œ์ž‘ ์ •์ ์—์„œ ๋ชฉํ‘œ ์ •์ ๊นŒ์ง€์˜ ์ตœ๋‹จ ๊ธธ์ด ๊ฒฝ๋กœ๋ฅผ ๋ณด์žฅํ•œ๋‹ค. ๋‹จ์  ๊ฒฝ๋กœ๊ฐ€ ๋งค์šฐ ๊ธธ ๊ฒฝ์šฐ, ํƒ์ƒ‰ ๊ฐ€์ง€๊ฐ€ ๊ธ‰๊ฒฉํžˆ ์ฆ๊ฐ€ํ•จ์— ๋”ฐ๋ผ ๋งŽ์€ ๊ธฐ์–ต ๊ณต..