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[250414] ํž™(Heap)์ด๋ž€?
Algorithm ๐Ÿ“Š/๊ฐœ๋… ์ •๋ฆฌ ๐Ÿ“š
ํž™(Heap)์ด๋ž€?1. ํž™(Heap)์˜ ์ •์˜ํž™(Heap)์€ ์™„์ „ ์ด์ง„ ํŠธ๋ฆฌ(Complete Binary Tree)์˜ ํ•œ ํ˜•ํƒœ๋กœ, ์šฐ์„ ์ˆœ์œ„ ํ(Priority Queue)๋ฅผ ๊ตฌํ˜„ํ•  ๋•Œ ์‚ฌ์šฉํ•˜๋Š” ์ž๋ฃŒ๊ตฌ์กฐ๋‹ค.ํ•ญ์ƒ ๋ฃจํŠธ ๋…ธ๋“œ์— ์ตœ๋Œ“๊ฐ’ ๋˜๋Š” ์ตœ์†Ÿ๊ฐ’์ด ์œ„์น˜ํ•˜์—ฌ ๋น ๋ฅด๊ฒŒ ์šฐ์„ ์ˆœ์œ„๊ฐ€ ๊ฐ€์žฅ ๋†’์€ ์š”์†Œ์— ์ ‘๊ทผ ๊ฐ€๋Šฅํ•˜๋‹ค.2. ํž™์˜ ์ข…๋ฅ˜ํž™์€ ํฌ๊ฒŒ ๋‘ ๊ฐ€์ง€๋กœ ๋‚˜๋‰œ๋‹ค.์ตœ๋Œ€ ํž™(Max Heap)๋ถ€๋ชจ ๋…ธ๋“œ์˜ ๊ฐ’์ด ์ž์‹ ๋…ธ๋“œ์˜ ๊ฐ’๋ณด๋‹ค ํ•ญ์ƒ ํฌ๊ฑฐ๋‚˜ ๊ฐ™์€ ํ˜•ํƒœ์˜ ํž™๋ฃจํŠธ ๋…ธ๋“œ๊ฐ€ ์ „์ฒด ํŠธ๋ฆฌ ์ค‘ ์ตœ๋Œ“๊ฐ’์„ ๊ฐ€์ง์ตœ์†Œ ํž™(Min Heap)๋ถ€๋ชจ ๋…ธ๋“œ์˜ ๊ฐ’์ด ์ž์‹ ๋…ธ๋“œ์˜ ๊ฐ’๋ณด๋‹ค ํ•ญ์ƒ ์ž‘๊ฑฐ๋‚˜ ๊ฐ™์€ ํ˜•ํƒœ์˜ ํž™๋ฃจํŠธ ๋…ธ๋“œ๊ฐ€ ์ „์ฒด ํŠธ๋ฆฌ ์ค‘ ์ตœ์†Ÿ๊ฐ’์„ ๊ฐ€์ง3. ํž™์˜ ํŠน์ง•์™„์ „ ์ด์ง„ ํŠธ๋ฆฌ ๊ตฌ์กฐ๋ชจ๋“  ๋ ˆ๋ฒจ์ด ๊ฐ€๋“ ์ฐจ์žˆ๊ณ , ๋งˆ์ง€๋ง‰ ๋ ˆ๋ฒจ์€ ์™ผ์ชฝ๋ถ€ํ„ฐ ์ˆœ์„œ๋Œ€๋กœ ์ฑ„์›Œ์ง์šฐ์„ ์ˆœ์œ„ ์ ‘๊ทผ..