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heap2

[Java DeepDive] - String (1) ๋ฌธ์ž์—ด ์ƒ์„ฑ ๐Ÿ“Ž String (1) - ๋ฌธ์ž์—ด ์ƒ์„ฑ ์ž๋ฐ”์—์„œ ๊ฐ€์žฅ ๋งŽ์ด ์‚ฌ์šฉ๋˜๋Š” ํƒ€์ž… ์ค‘ ํ•˜๋‚˜์ธ ๋ฌธ์ž์—ด(String)์— ๋Œ€ํ•ด ์‚ดํŽด๋ณด๊ฒ ์Šต๋‹ˆ๋‹ค. (์˜ˆ์ œ ์ฝ”๋“œ๋Š” ๊นƒํ—ˆ๋ธŒ์—์„œ ํ™•์ธํ•˜์‹ค ์ˆ˜ ์žˆ์œผ๋ฉฐ, ๋ฒ„์ „์€ Java 11์„ ์‚ฌ์šฉํ–ˆ์Šต๋‹ˆ๋‹ค.) String ๋ฌธ์ž์—ด ์ƒ์„ฑ - new, literal ๋ณดํ†ต ์ž๋ฐ”์—์„œ ๊ฐ์ฒด๋ฅผ ์ƒ์„ฑํ•  ๋•Œ๋Š” new ํ‚ค์›Œ๋“œ๋ฅผ ์‚ฌ์šฉํ•˜์—ฌ ์ธ์Šคํ„ด์Šค๋ฅผ ์ƒ์„ฑํ•˜์ง€๋งŒ, String์˜ ๊ฒฝ์šฐ ๋ฆฌํ„ฐ๋Ÿด(literal)์„ ํ†ตํ•ด ๊ฐ’์„ ๋ฐ”๋กœ ํ• ๋‹นํ•  ์ˆ˜ ์žˆ์Šต๋‹ˆ๋‹ค. public static void main(String[] args) { final String str1 = "JuHyun"; // [1] final String str2 = "JuHyun"; // [2] final String str3 = new String("JuHyun"); .. 2022. 10. 10.
ํ”„๋กœ๊ทธ๋ž˜๋จธ์Šค[Java] - (Level2)๋” ๋งต๊ฒŒ(Heap) https://programmers.co.kr/learn/courses/30/lessons/42626 ํ”„๋กœ๊ทธ๋ž˜๋จธ์Šค ์ฝ”๋“œ ์ค‘์‹ฌ์˜ ๊ฐœ๋ฐœ์ž ์ฑ„์šฉ. ์Šคํƒ ๊ธฐ๋ฐ˜์˜ ํฌ์ง€์…˜ ๋งค์นญ. ํ”„๋กœ๊ทธ๋ž˜๋จธ์Šค์˜ ๊ฐœ๋ฐœ์ž ๋งž์ถคํ˜• ํ”„๋กœํ•„์„ ๋“ฑ๋กํ•˜๊ณ , ๋‚˜์™€ ๊ธฐ์ˆ  ๊ถํ•ฉ์ด ์ž˜ ๋งž๋Š” ๊ธฐ์—…๋“ค์„ ๋งค์นญ ๋ฐ›์œผ์„ธ์š”. programmers.co.kr ์ฝ”๋“œ import java.util.*; class Solution { public int solution(int[] scoville, int K) { int answer = 0; Queue pq = new PriorityQueue(); // ์šฐ์„ ์ˆœ์œ„ ํ์— ๋ฐฐ์—ด๊ฐ’ ์ €์žฅ for(int i : scoville) pq.offer(i); // ์šฐ์„ ์ˆœ์œ„ ํ์— ์Šค์ฝ”๋นŒ์ง€์ˆ˜ K๋ณด๋‹ค ๊ฐ’์ด ์ž‘์„๋•Œ ๋ฐ˜๋ณต while(pq.peek.. 2020. 3. 20.
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