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๐Ÿฐ ๊ธฐ์ˆ  ๋ƒ‰์žฅ๊ณ ์ž…๋‹ˆ๋‹ค. ๐Ÿ›’ ๊ธฐ์ˆ  ๋ฉด์ ‘ , ์ „๊ณต ์‹œํ—˜ , ์ง€์‹ ํ•จ์–‘ ๋“ฑ ๋ถ„๋ช… ๋„์›€๋  ๊ฑฐ์˜ˆ์š”! ๐ŸคŸ

License: Apache License 2.0

computer-science tech interview interview-questions it knowledgebase network operating-system database algorithm

tech-refrigerator's Introduction

๊ฐœ๋ฐœ์ž์—๊ฒŒ ํ•„์š”ํ•˜๊ณ  ์œ ์šฉํ•œ ์–‘์‹๋“ค์„ ๋ชจ์•„๋†“์€ ๊ธฐ์ˆ  ๋ƒ‰์žฅ๊ณ ์ž…๋‹ˆ๋‹ค. Anna์™€ GimunLee๊ฐ€ ๊ธฐ๋ณธ์ ์ธ ์ง€์‹๋ถ€ํ„ฐ ์‹ฌํ™” ์ง€์‹๊นŒ์ง€ ๊ณต๋ถ€ํ•˜๋ฉฐ ์ฑ„์›Œ ๋„ฃ์„๊ฒŒ์š”. ์šฐ๋ฆฌ์˜ ๋ƒ‰์žฅ๊ณ ๊ฐ€ ์—ฌ๋Ÿฌ๋ถ„์˜ ๊ธฐ์ˆ  ์Šต๋“, ๋ฉด์ ‘, ์Šคํ„ฐ๋”” ๋“ฑ์— ๋งŽ์€ ๋„์›€์ด ๋˜๊ธฐ๋ฅผ ๋ฐ”๋ผ์š”.

๐Ÿ“ ๊ณต๋ถ€ํ•˜๋ฉด์„œ ์ •๋ฆฌํ•˜๋Š” ๊ธฐ์ˆ  ์ €์žฅ์†Œ์ž…๋‹ˆ๋‹ค. ์—ฌ๋Ÿฌ๋ถ„๋“ค๊ณผ ์†Œํ†ตํ•˜๋ฉฐ ์ฑ„์›Œ๊ฐ€๊ณ  ์‹ถ์–ด์š”. ๐Ÿ˜€

โœ” ์ƒํ•œ ๊ธฐ์ˆ ์€ Issue๋‚˜ Pull Request๋กœ ์•Œ๋ ค์ฃผ์„ธ์š”.

๐Ÿค ๊ธฐ์—ฌํ•ด์ฃผ์‹  ๋ถ„๋“ค : Donghoon759 | DongOnee | HaenaraShin


๐Ÿฅ— Language


๐ŸŽ Algorithm


๐Ÿ• Software Engineering


๐Ÿ Design Pattern Go!


๐Ÿ‰ Web


๐ŸŒฝ Database


๐Ÿฅž Network


๐ŸŠ Operating System


๐Ÿญ ETC


tech-refrigerator's People

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ahlim721 avatar donghoon-song avatar gimunlee avatar kakao-ricky-moon avatar

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tech-refrigerator's Issues

GC์ „ Java ๋ฉ”๋ชจ๋ฆฌ๊ด€ํ•œ ๋‚ด์šฉ ์ถ”๊ฐ€ ๋ถ€ํƒ

GC์— ๋ฉ”๋ชจ๋ฆฌ์˜์—ญ์— ๋Œ€ํ•œ ์ด์•ผ๊ธฐ๊ฐ€ ๋งŽ์ด ๋‚˜์˜ค๋Š”๋ฐ ํ•ด๋‹น ๋ถ€๋ถ„์— ๋Œ€ํ•œ ์ž์„ธํ•œ ๋‚ด์šฉ์ด ์—†์–ด ์•„์‰ฝ์Šต๋‹ˆ๋‹ค.

GC์ „์— ๋ฉ”๋ชจ๋ฆฌ์— ๊ด€ํ•œ ์ด์•ผ๊ธฐ๊ฐ€ ๋“ค์–ด๊ฐ€๋ฉด ์ข‹์„๊ฑฐ ๊ฐ™์Šต๋‹ˆ๋‹ค.

Algorithm - Quick sort ์•„์ฃผ ์‚ฌ์†Œํ•œ ์ค„๋ฐ”๊ฟˆ, bold

https://github.com/GimunLee/tech-refrigerator/blob/master/Algorithm/%ED%80%B5%20%EC%A0%95%EB%A0%AC%20(Quick%20Sort).md#%EC%8B%9C%EA%B0%84%EB%B3%B5%EC%9E%A1%EB%8F%84--%EA%B3%B5%EA%B0%84%EB%B3%B5%EC%9E%A1%EB%8F%84

๊ทธ๋ฆผ๊ณผ ๊ธ€ ์‚ฌ์ด์— ์ค„๋ฐ”๊ฟˆ์ด ์•ˆ๋˜์–ด์žˆ์–ด ์˜ค๋ฅ˜

แ„‰แ…ณแ„แ…ณแ„…แ…ตแ†ซแ„‰แ…ฃแ†บ 2019-12-18 แ„‹แ…ฉแ„’แ…ฎ 4 30 32

๊ฐ™์€ ๊ธ€์— bold ์˜ค๋ฅ˜

แ„‰แ…ณแ„แ…ณแ„…แ…ตแ†ซแ„‰แ…ฃแ†บ 2019-12-18 แ„‹แ…ฉแ„’แ…ฎ 4 35 47

README - 'Open Source License ๊ตฌ๋ถ„' ์ž˜๋ชป๋œ URL

README.md์˜ 'Open Source License ๊ตฌ๋ถ„' ํ•ญ๋ชฉ์˜ URL์ด ์ž˜๋ชป ์ง€์ •๋˜์–ด ์žˆ์Šต๋‹ˆ๋‹ค.

  • ์ž˜๋ชป๋œ URL
- [Open Source License ๊ตฌ๋ถ„](https://github.com/GimunLee/tech-refrigerator/blob/master/Open%Soruce/Open%20Source%20License%20%EA%B5%AC%EB%B6%84.md#open-source-license-%EA%B5%AC%EB%B6%84)
  • ๋ณ€๊ฒฐ ๋  URL
- [Open Source License ๊ตฌ๋ถ„](https://github.com/GimunLee/tech-refrigerator/blob/master/Open%20Source/Open%20Source%20License%20%EA%B5%AC%EB%B6%84.md)

ํ˜น์€ ์ƒ๋Œ€๊ฒฝ๋กœ๋ฅผ ์ด์šฉํ•  ์ˆ˜๋„ ์žˆ์„ ๊ฒƒ ๊ฐ™์Šต๋‹ˆ๋‹ค.

  • ์ƒ๋Œ€ ๊ฒฝ๋กœ ์‚ฌ์šฉ
- [Open Source License ๊ตฌ๋ถ„](Open Source/Open Source License ๊ตฌ๋ถ„.md)

Java Lamda Expression์— ๋ช…๋ช…๊ทœ์น™์ด ์–ด๊ธ‹๋‚˜ ๋ฌธ๋ฒ• ๊ตฌ์กฐ๋ฅผ ํŒŒ์•…ํ•˜๋Š”๋ฐ ์–ด๋ ค์›€์ด ์žˆ์Šต๋‹ˆ๋‹ค!

์•ˆ๋…•ํ•˜์„ธ์š”. ์ข‹์€ ์ž๋ฃŒ๋“ค ์ž˜ ๋ดค์Šต๋‹ˆ๋‹ค. ๐Ÿ™‹๐Ÿปโ€โ™‚๏ธ
ํ˜„์žฌ java/Java Lamda Expression ์ž๋ฐ” ๋ช…๋ช…๊ทœ์น™์— ์–ด๊ธ‹๋‚œ ๋ถ€๋ถ„์ด ์žˆ์–ด ํ•ด์„์— ๋ถ€์žฌ๊ฐ€ ์žˆ์„ ๊ฒƒ ๊ฐ™์•„ ์ด์Šˆ ๋‚จ๊น๋‹ˆ๋‹ค.

๋žŒ๋‹ค์‹ ๊ธฐ๋ณธ ๋ฌธ๋ฒ• ์„น์…˜์— ComareExam.class ๋ฅผ ๋ณด๋ฉด ๊ฐœํ–‰๋„ ๋งž์ง€ ์•Š๊ณ , exec()์˜ ํŒŒ๋ผ๋ฏธํ„ฐ๊ฐ€ ๊ฐ€ Compare๋กœ ์นด๋ฉœ์ผ€์ด์Šค๊ฐ€ ์•„๋‹™๋‹ˆ๋‹ค.

public static void exec(Compare Compare) (x)
public static void exec(Compare compare) (o)

์ด๋Š” value ์˜ ๊ฐ’์„ ๋Œ€์ž…ํ•˜๋Š” ๊ณผ์ •์—์„œ ํ•ด์„์˜ ๋ถ€์žฌ๊ฐ€ ์ƒ๊น๋‹ˆ๋‹ค.. int value = Compare.compareTo(k, m); ๋ณด๋‹ค,
int value = compare.compareTo(k, m); ์ด ์ธํ„ฐํŽ˜์ด์Šค์™€ ๋ณ€์ˆ˜๊ฐ€ ํ™•์‹คํ•˜๊ฒŒ ๊ตฌ๋ถ„ ๋ผ ๊ฐ€๋…์„ฑ์ด ๋†’์•„์ ธ ๋ฌธ๋ฒ• ํ•ด์„์˜ ์˜ค๋ฅ˜๊ฐ€ ์—†์„ ๊ฒƒ ๊ฐ™์Šต๋‹ˆ๋‹ค.

์ด ๋ ˆํฌ๋ฅผ ๋ณด๊ณ  ๊ณต๋ถ€ํ•˜์‹œ๋Š” ๋…์ž๋“ค์„ ์œ„ํ•ด ์ด ์  FIX ํ•ด์ฃผ์‹œ๋ฉด ๊ฐ์‚ฌํ•˜๊ฒ ์Šต๋‹ˆ๋‹ค ๐Ÿ™‡๐Ÿปโ€โ™‚๏ธ

Algorithm - Selection sort ์•„์ฃผ ์‚ฌ์†Œํ•œ bold.

แ„‰แ…ณแ„แ…ณแ„…แ…ตแ†ซแ„‰แ…ฃแ†บ 2019-12-18 แ„‹แ…ฉแ„’แ…ฎ 3 44 28

https://github.com/GimunLee/tech-refrigerator/blob/master/Algorithm/%EC%84%A0%ED%83%9D%20%EC%A0%95%EB%A0%AC%20(Selection%20Sort).md#%EC%8B%9C%EA%B0%84%EB%B3%B5%EC%9E%A1%EB%8F%84--%EA%B3%B5%EA%B0%84%EB%B3%B5%EC%9E%A1%EB%8F%84

<๋ณ€๊ฒฝ์ „>
- ์ฃผ์–ด์ง„ ๋ฐฐ์—ด ์•ˆ์—์„œ ๊ตํ™˜(swap)์„ ํ†ตํ•ด, ์ •๋ ฌ์ด ์ˆ˜ํ–‰๋˜๋ฏ€๋กœ **O(n)**์ž…๋‹ˆ๋‹ค.

  • ์ฃผ์–ด์ง„ ๋ฐฐ์—ด ์•ˆ์—์„œ ๊ตํ™˜(swap)์„ ํ†ตํ•ด, ์ •๋ ฌ์ด ์ˆ˜ํ–‰๋˜๋ฏ€๋กœ **O(n)**์ž…๋‹ˆ๋‹ค.

<๋ณ€๊ฒฝ ์š”๋ง>
- ์ฃผ์–ด์ง„ ๋ฐฐ์—ด ์•ˆ์—์„œ ๊ตํ™˜(swap)์„ ํ†ตํ•ด, ์ •๋ ฌ์ด ์ˆ˜ํ–‰๋˜๋ฏ€๋กœ **O(n)** ์ž…๋‹ˆ๋‹ค.

  • ์ฃผ์–ด์ง„ ๋ฐฐ์—ด ์•ˆ์—์„œ ๊ตํ™˜(swap)์„ ํ†ตํ•ด, ์ •๋ ฌ์ด ์ˆ˜ํ–‰๋˜๋ฏ€๋กœ O(n) ์ž…๋‹ˆ๋‹ค.

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