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์‰ฌ์šด์ฝ”๋“œ SQL๋กœ DB์— ๋ฐ์ดํ„ฐ๋ฅผ ์ถ”๊ฐ€(insert)ํ•˜๊ณ  ์ˆ˜์ •(update)ํ•˜๊ณ  ์‚ญ์ œ(delete)ํ•˜๋Š” ๋ฐฉ๋ฒ•์„ ๋ฐฐ์›Œ๋ด…๋‹ˆ๋‹ค. ์‰ฝ๊ณ  ์•Œ์ฐฌ ์˜ˆ์ œ๋กœ ์„ค๋ช…ํ•˜๋‹ˆ๊นŒ ๋“ค๋Ÿฌ๋ณด์„ธ์šฉ :) 2022-06-14 02:15:02 2024-05-16 23:31:06 x
์‰ฌ์šด์ฝ”๋“œ SQL์˜ ๊ฐœ๋…๊ณผ SQL๋กœ ๋ฐ์ดํ„ฐ๋ฒ ์ด์Šค๋ฅผ ์ •์˜ํ•˜๋Š” ๋ฒ•์„ ๋ฐฐ์›๋‹ˆ๋‹ค. table ์ƒ์„ฑํ•˜๊ธฐ, ๊ฐ์ข… ๋ฐ์ดํ„ฐ ํƒ€์ž…, constraints, ํ‚ค(key)๋“ค์„ ํ™œ์šฉํ•ด์„œ DB๋ฅผ ๊ตฌ์ถ•ํ•ด๋ด…์‹œ๋‹ค! 2022-06-09 15:30:05 2025-02-13 22:05:28 x
์‰ฌ์šด์ฝ”๋“œ ๊ด€๊ณ„ํ˜• ๋ฐ์ดํ„ฐ๋ฒ ์ด์Šค(relational database)๊ฐœ๋…๊ณผ relation, primary key(๊ธฐ๋ณธํ‚ค), foreign key(์™ธ๋ž˜ํ‚ค), constraints๋ฅผ ์•Œ์•„๋ด…์‹œ๋‹ค 2022-05-27 23:30:07 2025-02-13 22:05:28 x
์‰ฌ์šด์ฝ”๋“œ ๋ฐฑ์—”๋“œ์—์„œ ์‚ฌ์šฉ๋˜๋Š” ๋ฐ์ดํ„ฐ๋ฒ ์ด์Šค(database) ๊ธฐ๋ณธ ๊ฐœ๋…์„ ์„ค๋ช…ํ•ฉ๋‹ˆ๋‹ค~ ์ค‘์š”ํ•œ DB ์šฉ์–ด๋“ค์„ ์ž˜ ์•Œ๊ณ  ์žˆ์–ด์•ผ ๊ธฐ๋ณธ๊ธฐ๋ฅผ ํƒ„ํƒ„ํ•˜๊ฒŒ ๋‹ค์ง€๋Š”๋ฐ ๋„์›€์ด ๋˜๊ฒ ์ฃ ? :) 2022-05-20 23:00:00 2025-02-13 22:05:28 x
์‰ฌ์šด์ฝ”๋“œ ์ฝ”๋”ฉํ…Œ์ŠคํŠธ์—์„œ ๋งŽ์ด ์‚ฌ์šฉ๋˜๋Š” dynamic programming(๋‹ค์ด๋‚˜๋ฏน ํ”„๋กœ๊ทธ๋ž˜๋ฐ, ๋™์  ๊ณ„ํš๋ฒ•)์˜ ๊ฐœ๋…๊ณผ ์–ธ์ œ ์–ด๋–ป๊ฒŒ ์‚ฌ์šฉํ•  ์ˆ˜ ์žˆ๋Š”์ง€ ๋‘ ๊ฐ€์ง€ ์˜ˆ์ œ๋ฅผ ํ†ตํ•ด ์‚ดํŽด๋ด…๋‹ˆ๋‹ค~ 2022-05-15 01:45:01 2025-02-13 22:05:28 x
์‰ฌ์šด์ฝ”๋“œ divide and conquer, ๋ถ„ํ• ์ •๋ณต์ด๋ผ๊ณ  ํ•˜์ฃ ~ ๊ฐœ๋…๊ณผ ๋™์ž‘ ๋ฐฉ์‹์„ ์„ค๋ช…ํ•˜๊ตฌ์š”, merge sort๋ฅผ ํ†ตํ•ด divide & conquer๊ฐ€ ์–ด๋–ป๊ฒŒ ๋™์ž‘ํ•˜๋Š”์ง€ ์‚ดํŽด๋ด…๋‹ˆ๋‹ค~ 2022-05-04 18:00:03 2025-02-13 22:05:28 x
์‰ฌ์šด์ฝ”๋“œ (2๋ถ€) ๋ ˆ๋“œ๋ธ”๋ž™ํŠธ๋ฆฌ(red-black tree)์˜ ์‚ญ์ œ๋Š” ์–ด๋–ป๊ฒŒ ๋™์ž‘ํ• ๊นŒ์š”? ์‹œ๊ฐ„ ๋ณต์žก๋„๋Š” ์–ด๋–ป๊ฒŒ ๋ ๊นŒ์š”? AVL ํŠธ๋ฆฌ์™€ ์ฐจ์ด๋Š” ๋ฌด์—‡์ผ๊นŒ์š”? ์ด ์˜์ƒ์œผ๋กœ ํ›„๋ จํ•˜๊ฒŒ ํ•ด๊ฒฐํ•˜์„ธ์š” :) 2022-04-29 22:30:01 2025-02-13 22:05:28 x
์‰ฌ์šด์ฝ”๋“œ (1๋ถ€) ๋ ˆ๋“œ๋ธ”๋ž™ํŠธ๋ฆฌ(red-black tree)์˜ ๊ธฐ๋ณธ ๊ฐœ๋…๊ณผ ํŠน์ง•์„ ์‚ดํŽด๋ณด๊ณ , ์‚ฝ์ž… ๋•Œ ๋ ˆ๋“œ๋ธ”๋ž™ํŠธ๋ฆฌ๊ฐ€ ์–ด๋–ป๊ฒŒ ๋™์ž‘ํ•˜๋Š”์ง€๋ฅผ ์•„์ฃผ ์ž์„ธํžˆ ์„ค๋ช…ํ•ฉ๋‹ˆ๋‹ค~ ํ—ท๊ฐˆ๋ฆฌ์‹œ๋Š” ๋ถ„๋“ค ์ปค๋ชฌ์š” 2022-04-24 02:30:01 2025-02-13 22:05:28 x
์‰ฌ์šด์ฝ”๋“œ ๊ท ํ˜•์„ ๋นก์„ธ๊ฒŒ ์œ ์ง€ํ•˜๋Š” AVL ํŠธ๋ฆฌ๋Š” ์ด์ง„ํƒ์ƒ‰ํŠธ๋ฆฌ์˜ ๋‹จ์ ์„ ์–ด๋–ป๊ฒŒ ๊ทน๋ณตํ–ˆ์„๊นŒ์š”? ์ด์ง„ํƒ์ƒ‰ํŠธ๋ฆฌ๋ฉด์„œ๋„ ๊ท ํ˜•์„ ์œ ์ง€ํ•˜๋Š” AVL ํŠธ๋ฆฌ์˜ ๋™์ž‘๋ฐฉ์‹๊ณผ ์žฅ๋‹จ์ ์„ ์‚ดํŽด๋ด…๋‹ˆ๋‹ค :) 2022-04-13 23:30:07 2025-02-13 22:05:28 x
์‰ฌ์šด์ฝ”๋“œ ์ด์ง„ํƒ์ƒ‰ํŠธ๋ฆฌ(binary search tree)๋ฅผ ์„ค๋ช…ํ•ฉ๋‹ˆ๋‹ค~ ๊ธฐ๋ณธ ๊ฐœ๋…๊ณผ ํŠธ๋ฆฌ๋ฅผ ์ˆœํšŒํ•˜๋Š” ์—ฌ๋Ÿฌ ๋ฐฉ๋ฒ•, ์ด์ง„ํƒ์ƒ‰ํŠธ๋ฆฌ์˜ ์‚ฝ์ž…/์‚ญ์ œ/๊ฒ€์ƒ‰์ด ์–ด๋–ป๊ฒŒ ๋™์ž‘ํ•˜๋Š”์ง€ ์˜ˆ๋ฅผ ํ†ตํ•ด ์„ค๋ช…๋“œ๋ ค์š” :) 2022-04-03 22:00:30 2025-02-13 22:05:28 x
์‰ฌ์šด์ฝ”๋“œ ํŠธ๋ฆฌ(tree) ๊ตฌ์กฐ์˜ ๊ธฐ๋ณธ ๊ฐœ๋…๊ณผ ์šฉ์–ด๋“ค์„ ์„ค๋ช…ํ•ฉ๋‹ˆ๋‹ค~ ์ด์ง„ ํŠธ๋ฆฌ(binary tree)์˜ ํ˜•ํƒœ์— ๋”ฐ๋ฅธ ๋‹ค์–‘ํ•œ ์ข…๋ฅ˜๋„ ์„ค๋ช…ํ•˜๋‹ˆ๊นŒ์š” ๊ธฐ๋ณธ ๊ฐœ๋… ์žก๊ณ  ์‹ถ์œผ์‹œ๋ฉด ๋„์›€๋˜์‹ค ๊ฑฐ์—์š” :) 2022-03-29 12:00:30 2025-02-13 22:05:28 x
์‰ฌ์šด์ฝ”๋“œ ์‹œ๊ฐ„๋ณต์žก๋„(time complexity)๋ฅผ ์•Œ์ฐจ๊ฒŒ ์„ค๋ช…ํ•ฉ๋‹ˆ๋‹ค! ๋น… ์˜ค(Big O)๋ฅผ ํฌํ•จํ•ด์„œ ์ ๊ทผ์  ํ‘œ๊ธฐ๋ฒ•์„ ๋‹ค์–‘ํ•œ ์˜ˆ์ œ์™€ ํ•จ๊ป˜ ์„ค๋ช…ํ•˜๋‹ˆ๊นŒ์š” ๋“ค๋Ÿฌ๋ณด์„ธ์š”~ :) 2022-03-22 12:00:16 2025-02-13 22:05:28 x
์‰ฌ์šด์ฝ”๋“œ แ„‡แ…ฎแ†ฏแ„‡แ…งแ†ซ แ„€แ…ขแ†จแ„Žแ…ฆ(immutable object)๋Š” ์•ˆ์ •์ ์ธ ๊ฐœ๋ฐœ์— ์•„์ฃผ ๋„์›€์ด ๋ฉ๋‹ˆ๋‹ค! ๋ถˆ๋ณ€ ๊ฐ์ฒด์˜ ๊ฐœ๋…๊ณผ ์žฅ์ , ๊ตฌํ˜„ ๋ฐฉ๋ฒ•์„ ์ž๋ฐ” ์˜ˆ์ œ๋ฅผ ํ†ตํ•ด ๋ฐฐ์›Œ๋ณด์•„์š”~! 2022-03-18 07:30:01 2025-02-13 22:05:28 x
์‰ฌ์šด์ฝ”๋“œ ๊ฐ’์ด ์ค‘๋ณต๋˜๋Š” ๊ฐ์ฒด๋ฅผ ์ œ๊ฑฐํ•  ๋ชฉ์ ์œผ๋กœ hash set์„ ์“ฐ๋ ค๋ฉด? (hash table๋„ ๋งˆ์ฐฌ๊ฐ€์ง€์˜ˆ์š”) 2022-03-11 09:00:03 2025-02-13 22:05:28 x
์‰ฌ์šด์ฝ”๋“œ ์…‹(set)๊ณผ ์…‹์˜ ๋Œ€ํ‘œ ๊ตฌํ˜„์ฒด์ธ ํ•ด์‹œ ์…‹(hash set)์˜ ํ•ต์‹ฌ์„ ์„ค๋ช…ํ•ฉ๋‹ˆ๋‹ค! ๋ฆฌ์ŠคํŠธ(list)์™€ ์…‹์˜ ์ฐจ์ด, ํŒŒ์ด์ฌ์˜ Set vs ์ž๋ฐ”์˜ HashSet๋„ ๋น„๊ตํ•ฉ๋‹ˆ๋‹ค ;) 2022-03-07 22:30:04 2025-02-13 22:05:28 x
์‰ฌ์šด์ฝ”๋“œ ๋งต(map)๊ณผ ํ•ด์‹œ ํ…Œ์ด๋ธ”(hash table) ํ•ต์‹ฌ๋งŒ ๋ชจ์•„๋ณด๊ธฐ! ๋งต๊ณผ ํ•ด์‹œ ํ…Œ์ด๋ธ”(a.k.a ํ•ด์‹œ ๋งต)์„ 20๋ถ„๊ฐ„ ์•„์ฃผ์•„์ฃผ์•„์ฃผ ์•Œ์ฐจ๊ฒŒ ์„ค๋ช…ํ•ฉ๋‹ˆ๋‹ค!! 2022-03-03 18:00:24 2025-02-13 22:05:28 x
์‰ฌ์šด์ฝ”๋“œ แ„…แ…ตแ„‰แ…ณแ„แ…ณ(list)๋ฅผ ์•„์‹œ๋‚˜์š”? array list์™€ linked list์˜ ๊ฐœ๋…๊ณผ ์ฐจ์ด๋ฅผ ํ•œ๋ฐฉ์— ์ •๋ฆฌํ•ฉ๋‹ˆ๋‹ค! 2๋…„ ์ „ ์˜์ƒ๋ณด๋‹ค ๋”์šฑ ์—…๊ทธ๋ ˆ์ด๋“œ๋œ ์˜์ƒ์„ ์ง€๊ธˆ ๋งŒ๋‚˜๋ณด์„ธ์š”!! 2022-02-26 11:00:09 2025-02-13 22:05:28 x
์‰ฌ์šด์ฝ”๋“œ ๋ฐฐ์—ด(array)์„ ๋‹ด๋ฐฑํ•˜๊ฒŒ ์„ค๋ช…ํ•ฉ๋‹ˆ๋‹ค~ ๋™์ ๋ฐฐ์—ด(dynamic array)๊ณผ ์—ฐ๊ด€๋ฐฐ์—ด(associative array)์€ ๋˜ ๋ญ˜๊นŒ์š”? ์ด๊ฒƒ๋„ ๋‹ด๋ฐฑํ•˜๊ฒŒ ์„ค๋ช…ํ•ฉ๋‹ˆ๋‹ค~ 2022-02-20 22:00:10 2025-02-13 22:05:28 x
์‰ฌ์šด์ฝ”๋“œ ๋น„๋™๊ธฐ ํ”„๋กœ๊ทธ๋ž˜๋ฐ, ๋น„๋™๊ธฐ I/O, ๋น„๋™๊ธฐ ์ปค๋ฎค๋‹ˆ์ผ€์ด์…˜.. ๋น„๋™๊ธฐ(asynchronous)๋ผ๋Š” .. ์ฐธ ๋งŽ์ด ์‚ฌ์šฉํ•˜๋Š”๋ฐ์š”~ ๊ฐ ๋งฅ๋ฝ์— ๋”ฐ๋ฅธ ์˜๋ฏธ๋ฅผ ์„ค๋ช…ํ•ฉ๋‹ˆ๋‹ค~ ๋“ค๋Ÿฌ๋ณด์„ธ์˜~ใ…Žใ…Ž 2022-02-16 08:00:10 2025-02-13 22:05:28 x
์‰ฌ์šด์ฝ”๋“œ block I/O vs non-block I/O ๊ฐœ๋…์„ ์„ค๋ช…ํ•ฉ๋‹ˆ๋‹ค! ์†Œ์ผ“ I/O๋ฅผ ์˜ˆ์ œ๋กœ ์ฃผ๋กœ ์„ค๋ช…ํ•ด์š”! I/O multiplexing(๋‹ค์ค‘ ์ž…์ถœ๋ ฅ) ์„ค๋ช…๋„ ๋น ์งˆ ์ˆ˜ ์—†๊ฒ ์ฃ ? ;) 2022-02-12 11:00:11 2025-02-13 22:05:28 x
์‰ฌ์šด์ฝ”๋“œ แ„‰แ…ณแ„…แ…ฆแ„ƒแ…ณ แ„‘แ…ฎแ†ฏ(thread pool)์€ ์™œ ์“ฐ๋Š” ๊ฑธ๊นŒ์š”? ์–ด๋–ป๊ฒŒ ์“ฐ๋Š”๊ฒŒ ์ž˜ ์“ฐ๋Š” ๊ฑธ๊นŒ์š”? ์ง€๊ธˆ ์ด ์˜์ƒ์œผ๋กœ ์Šค๋ ˆ๋“œ ํ’€! ๊น”๋”ํ•˜๊ฒŒ ์ •๋ฆฌํ•˜์‹œ์ฃ ! 2022-02-08 20:00:12 2025-02-13 22:05:28 x
์‰ฌ์šด์ฝ”๋“œ แ„‰แ…ณแ„…แ…ฆแ„ƒแ…ณ แ„Œแ…ฉแ†ผแ„…แ…ฒ๊ฐ€ ์ฐธ ๋งŽ์ฃ ? ํ•˜๋“œ์›จ์–ด ์Šค๋ ˆ๋“œ, OS ์Šค๋ ˆ๋“œ, ๋„ค์ดํ‹ฐ๋ธŒ ์Šค๋ ˆ๋“œ, ์ปค๋„ ์Šค๋ ˆ๋“œ, ์œ ์ € ์Šค๋ ˆ๋“œ, ๊ทธ๋ฆฐ ์Šค๋ ˆ๋“œ๊นŒ์ง€ ํ•œ๋ฒˆ์— ์ •๋ฆฌํ•ด์„œ ์•Œ๋ ค๋“œ๋ฆฝ๋‹ˆ๋‹ค!! 2022-02-06 22:00:21 2025-02-13 22:05:28 x
์‰ฌ์šด์ฝ”๋“œ ์ธํ„ฐ๋ŸฝํŠธ์™€ ์‹œ์Šคํ…œ ์ฝœ์„ ์„ค๋ช…ํ•ฉ๋‹ˆ๋‹ค! ๋‹น์—ฐํžˆ ์œ ์ € ๋ชจ๋“œ, ์ปค๋„ ๋ชจ๋“œ๋„ ์„ค๋ช…ํ•ด์•ผ๊ฒ ์ฃ ? ๊ทธ๋Ÿฐ๋ฐ ์ด ๋ชจ๋“ ๊ฒŒ ํ”„๋กœ๊ทธ๋ž˜๋ฐ ์–ธ์–ด์™€ ๋ฌด์Šจ ์ƒ๊ด€์ด๋ƒ๊ตฌ์š”?? ์ƒ๊ด€์žˆ์ฃ ! ์™œ ์ƒ๊ด€์žˆ๋ƒ๋ฉด์š”..! 2022-02-05 18:00:21 2025-02-13 22:05:28 x
์‰ฌ์šด์ฝ”๋“œ CPU ์Šค์ผ€์ค„๋Ÿฌ๋Š” ํ”„๋กœ์„ธ์Šค๋ฅผ ์–ด๋–ป๊ฒŒ ์Šค์ผ€์ค„๋ง ํ•˜๋Š” ๊ฑธ๊นŒ์š”? ์„ ์ /๋น„์„ ์ ์˜ ์ฐจ์ด๋Š” ๋ญ˜๊นŒ์š”? ๋””์ŠคํŒจ์ฒ˜๋Š” ๋˜ ๋ญ์ฃ ? ์ด ๋ชจ๋“  ๊ถ๊ธˆ์ฆ์„ ์ด ์˜์ƒ์œผ๋กœ ๊ฐ„๊ฒฐํ•˜๊ฒŒ ํ•ด๊ฒฐํ•˜์„ธ์š”! 2022-01-29 19:30:03 2025-02-13 22:05:28 x
์‰ฌ์šด์ฝ”๋“œ OS ํ”„๋กœ์„ธ์Šค์˜ ์ƒํƒœ๊ฐ€ ์–ด๋–ป๊ฒŒ ๋ณ€ํ•˜๋Š”์ง€ ์•„์‹œ๋‚˜์š”?? ์ž๋ฐ” ์Šค๋ ˆ๋“œ ์ƒํƒœ๋„ ์•Œ๋ ค ๋“œ๋ฆฝ๋‹ˆ๋‹ค! ์ƒํƒœ๋ฅผ ์™œ ์•Œ์•„์•ผ ํ• ๊นŒ์š”? ์„œ๋ฒ„๊ฐ€ ๋ถˆ๋Šฅ์— ๋น ์ง€๋ฉด ๋ถ„์„ํ•  ๋•Œ ํ•„์š”ํ•˜๊ธฐ ๋•Œ๋ฌธ์ด์ฃ ! 2022-01-28 14:00:12 2025-02-13 22:05:28 x
์‰ฌ์šด์ฝ”๋“œ ๋ฐ๋“œ๋ฝ(๊ต์ฐฉ์ƒํƒœ)์€ ํ”„๋กœ๊ทธ๋žจ์— ์น˜๋ช…์ ์ด์ฃ  T^T ์–ธ์ œ ๋ฐœ์ƒํ•˜๊ณ  ์–ด๋–ป๊ฒŒ ํ•ด๊ฒฐํ•˜๋Š”์ง€ ์‚ดํŽด๋ด…์‹œ๋‹ค~! ๊ฐ„๋‹จํ•œ ์ž๋ฐ” ์˜ˆ์ œ๋„ ์žˆ์–ด์š”~!! 2022-01-26 14:00:04 2025-02-13 22:05:28 x
์‰ฌ์šด์ฝ”๋“œ แ„‹แ…ฎแ„‰แ…ฅแ†ซแ„‰แ…ฎแ†ซแ„‹แ…ฑ แ„แ…ฒ์™€ ํž™์˜ ๊ฐœ๋…๊ณผ ์ฐจ์ด, ์‚ฌ์šฉ ์‚ฌ๋ก€๋ฅผ ์„ค๋ช…ํ•ฉ๋‹ˆ๋‹ค! ํž™์ด ์–ด๋–ป๊ฒŒ ๋™์ž‘ํ•˜๋Š”์ง€๋„ ์˜ˆ๋ฅผ ํ†ตํ•ด ์ž์„ธํžˆ ์„ค๋ช…ํ•ฉ๋‹ˆ๋‹ค! 2022-01-25 14:00:08 2025-02-13 22:05:28 x
์‰ฌ์šด์ฝ”๋“œ ์Šคํƒ๊ณผ ํ ์„ค๋ช…! ์ฐธ ์‰ฝ์ฃ ~~? ๊ธฐ์ˆ  ๋ฌธ์„œ ์ฝ๋‹ค๊ฐ€ ํ ๋งŒ๋‚ฌ์„ ๋•Œ ํŒ๊ณผ ์Šคํƒ/ํ์™€ ๊ด€๋ จ๋œ ์—๋Ÿฌ๋“ค ๊ทธ๋ฆฌ๊ณ  ํ•ด๊ฒฐ์ฑ…๋„ ์„ค๋ช…๋“œ๋ ค์š”!! 2022-01-24 12:00:00 2025-02-13 22:05:28 x
์‰ฌ์šด์ฝ”๋“œ ๋ชจ๋‹ˆํ„ฐ๊ฐ€ ์–ด๋–ป๊ฒŒ ๋™๊ธฐํ™”์— ์‚ฌ์šฉ๋˜๋Š”์ง€ ์•„์ฃผ ์ž์„ธํžˆ ์„ค๋ช…ํ•ฉ๋‹ˆ๋‹ค! ์ž๋ฐ”์—์„œ ๋ชจ๋‹ˆํ„ฐ๋Š” ์–ด๋–ค ๋ชจ์Šต์ธ์ง€๋„ ์„ค๋ช…ํ•˜๋‹ˆ ํ—ท๊ฐˆ๋ฆฌ์‹œ๋Š” ๋ถ„๋“ค ๊ผญ ๋ณด์„ธ์š”! 2022-01-19 16:30:02 2025-02-13 22:05:28 x
์‰ฌ์šด์ฝ”๋“œ แ„‰แ…ณแ„‘แ…ตแ†ซแ„…แ…กแ†จ(spinlock) แ„†แ…ฒแ„แ…ฆแ†จแ„‰แ…ณ(mutex) แ„‰แ…ฆแ„†แ…กแ„‘แ…ฉ(semaphore) ๊ฐ๊ฐ์˜ ํŠน์ง•๊ณผ ์ฐจ์ด ์™„๋ฒฝ ์„ค๋ช…! ๋ฎคํ…์Šค๋Š” ๋ฐ”์ด๋„ˆ๋ฆฌ ์„ธ๋งˆํฌ๊ฐ€ ์•„๋‹ˆ๋ผ๋Š” ๊ฒƒ๋„ ์„ค๋ช…ํ•ฉ๋‹ˆ๋‹ค! 2022-01-15 14:00:13 2025-02-13 22:05:28 x
์‰ฌ์šด์ฝ”๋“œ ๋™๊ธฐํ™”(synchronization), ๊ฒฝ์Ÿ ์กฐ๊ฑด(race condition), ์ž„๊ณ„ ์˜์—ญ(critical section)์„ ์ž์„ธํ•˜๊ฒŒ ์„ค๋ช…ํ•ฉ๋‹ˆ๋‹ค! ํ—ท๊ฐˆ๋ฆฌ์‹œ๋Š” ๋ถ„๋“ค ๊ผญ ๋ณด์„ธ์š”! 2022-01-12 12:00:18 2025-02-13 22:05:28 x
์‰ฌ์šด์ฝ”๋“œ cpu bound, io bound ์˜๋ฏธ๋ฅผ ์„ค๋ช…ํ•ฉ๋‹ˆ๋‹ค! ์ด์— ๋”ฐ๋ฅธ ์Šค๋ ˆ๋“œ ๊ฐœ์ˆ˜๋ฅผ ์ •ํ•˜๋Š” ํŒ๋„ ์•Œ๋ ค๋“œ๋ฆฝ๋‹ˆ๋‹ค! 2022-01-10 12:00:31 2025-02-13 22:05:28 x
์‰ฌ์šด์ฝ”๋“œ ์ปจํ…์ŠคํŠธ ์Šค์œ„์นญ ๋ฝ€๊ฐœ๊ธฐ! ์˜๋ฏธ์™€ ์ข…๋ฅ˜์™€ ์™œ ์Šค๋ ˆ๋“œ ์ปจํ…์ŠคํŠธ ์Šค์œ„์นญ์ด ๋” ๋น ๋ฅด๋‹ค๊ณ  ํ•˜๋Š”์ง€๊นŒ์ง€..! ์ด ๋ชจ๋“  ๊ฒƒ์„ ์‹œ์›~~ํ•˜๊ฒŒ ์„ค๋ช…ํ•ฉ๋‹ˆ๋‹ค!! 2022-01-07 18:30:13 2025-02-13 22:05:28 x
์‰ฌ์šด์ฝ”๋“œ ํ”„๋กœ์„ธ์Šค, ์Šค๋ ˆ๋“œ, ๋ฉ€ํ‹ฐํƒœ์Šคํ‚น, ๋ฉ€ํ‹ฐ์Šค๋ ˆ๋”ฉ, ๋ฉ€ํ‹ฐํ”„๋กœ์„ธ์‹ฑ, ๋ฉ€ํ‹ฐํ”„๋กœ๊ทธ๋ž˜๋ฐ, ์ด ๋ชจ๋“  ๊ฒƒ์„ ํ•œ ๋ฐฉ์— ๊น”๋”ํ•˜๊ฒŒ ์„ค๋ช…ํ•ฉ๋‹ˆ๋‹ค!! ์ฝ˜ํ…์ธ  ํ€„๋ฆฌํ‹ฐ ๋งŒ์กฑํ•˜์‹ค ๊ฒ๋‹ˆ๋‹ค! 2022-01-06 12:00:15 2025-02-13 22:05:28 x
์‰ฌ์šด์ฝ”๋“œ ๋ฐฑ์—”๋“œ ๊ธฐ์ดˆ๋ฅผ ์ „์ฒด์ ์œผ๋กœ ๋‹ค์ง€๊ณ  ์‹ถ์œผ์‹  ๋ถ„! 8๋…„์ฐจ ๋ฐฑ์—”๋“œ ๊ฐœ๋ฐœ์ž๊ฐ€ ์ค€๋น„ํ•œ ์‹œ๋ฆฌ์ฆˆ๊ฐ€ ๋‹ต์ด ๋  ์ˆ˜ ์žˆ์Šต๋‹ˆ๋‹ค! 2022-01-03 12:00:03 2025-02-13 22:05:28 x
์‰ฌ์šด์ฝ”๋“œ ๋ณ€์ˆ˜์™€ ๊ฐ์ฒด์™€ แ„†แ…ฆแ„†แ…ฉแ„…แ…ต์˜ ๊ด€๊ณ„! ์ž๋ฐ”๋ฅผ ์˜ˆ๋กœ ๋“ค์–ด ๋ณ€์ˆ˜์™€ ๊ฐ์ฒด๋Š” ๋ฉ”๋ชจ๋ฆฌ์— ์–ด๋–ป๊ฒŒ ์ €์žฅ๋˜๋Š”์ง€ ์ •๋ง ์‰ฝ๊ฒŒ ์„ค๋ช…ํ•ด์š”! 2022-01-01 20:00:16 2025-02-13 22:05:28 x
์‰ฌ์šด์ฝ”๋“œ ํ•จ์ˆ˜!! ๊ฐœ๋ฐœ์˜ ๊ธฐ๋ณธ ์ค‘์— ๊ธฐ๋ณธ์ธ แ„’แ…กแ†ทแ„‰แ…ฎ๋ฅผ ์•„์ฃผ ์‰ฝ๊ฒŒ ์„ค๋ช…ํ•ฉ๋‹ˆ๋‹ค! 2021-12-29 20:30:01 2025-02-13 22:05:28 x
์‰ฌ์šด์ฝ”๋“œ แ„‡แ…งแ†ซแ„‰แ…ฎแ„‹แ…ช แ„€แ…กแ†น! ๊ฐœ๋ฐœ์˜ ๊ธฐ๋ณธ ์ค‘์˜ ๊ธฐ๋ณธ์ด ๋˜๋Š” ๊ฐœ๋…์ด์ฃ ~! ์‰ฝ๊ฒŒ ์„ค๋ช…ํ•ฉ๋‹ˆ๋‹ค 2021-12-28 20:30:15 2025-02-13 22:05:28 x
์‰ฌ์šด์ฝ”๋“œ แ„€แ…ขแ†จแ„Žแ…ฆ์™€ แ„แ…ณแ†ฏแ„…แ…ขแ„‰แ…ณ ์™„๋ฒฝ ์„ค๋ช…!! ๋” ์ด์ƒ ํ—ท๊ฐˆ๋ ค ํ•˜์‹œ์ง€ ๋งˆ์‹œ๊ณ  ๋“ค์–ด๋ณด์„ธ์š”~ 2021-12-27 20:30:00 2025-02-13 22:05:28 x
์‰ฌ์šด์ฝ”๋“œ แ„€แ…ขแ„‡แ…กแ†ฏแ„Œแ…กแ„…แ…ฉ แ„‰แ…ฅแ†ผแ„Œแ…กแ†ผแ„’แ…ก๊ธฐ! 7๋…„ ๊ฐ„ ๊ฐœ๋ฐœ์ž๋กœ ์ผํ•˜๋ฉด์„œ ์„ฑ์žฅํ•  ์ˆ˜ ์žˆ์—ˆ๋˜ ๋‚˜๋ฆ„์˜ ๋…ธํ•˜์šฐ๋ฅผ ์†Œ๊ฐœํ•ฉ๋‹ˆ๋‹ค!! 2021-12-23 20:30:17 2025-02-13 22:05:28 x
์‰ฌ์šด์ฝ”๋“œ แ„แ…ฌแ„‰แ…กแ„’แ…ขแ†ปแ„‰แ…ณแ†ธแ„‚แ…ตแ„ƒแ…ก!! ๋ณธ๊ฒฉ ๊ฐœ๋ฐœ ์œ ํŠœ๋ธŒ ์‹œ์ž‘!! 2021-12-19 21:39:43 2025-02-13 22:05:28 x
์‰ฌ์šด์ฝ”๋“œ แ„’แ…ขแ„‰แ…ตแ„†แ…ขแ†ธ์˜ แ„’แ…ขแ„‰แ…ต แ„Žแ…ฎแ†ผแ„ƒแ…ฉแ†ฏ แ„’แ…ขแ„€แ…งแ†ฏ แ„‡แ…กแ†ผแ„‡แ…ฅแ†ธ (hash map & hash collision ํ•ด๊ฒฐ) 2020-06-17 07:38:05 2025-02-13 22:05:28 x
์‰ฌ์šด์ฝ”๋“œ แ„’แ…ขแ„‰แ…ตแ„†แ…ขแ†ธแ„€แ…ช แ„’แ…ขแ„‰แ…ต แ„Žแ…ฎแ†ผแ„ƒแ…ฉแ†ฏ ๋ฐœ์ƒ ์ด์œ  (hash map & hash collision) 2020-06-13 00:15:44 2025-02-13 22:05:28 x
์‰ฌ์šด์ฝ”๋“œ Java์—์„œ SortedMap ์ •์˜์™€ ํŠน์ง• ; HashMap๊ณผ์˜ ์ฐจ์ด ; ๊ตฌํ˜„์ฒด๋“ค 2020-05-05 09:40:19 2025-02-13 22:05:28 x
์‰ฌ์šด์ฝ”๋“œ Set, HashSet ์„ค๋ช… 2020-03-27 07:46:19 2025-02-13 22:05:28 x
์‰ฌ์šด์ฝ”๋“œ hash map ์„ค๋ช… (์žฅ์ , ์˜ˆ์ œ, hash function) 2020-02-16 22:35:26 2025-02-13 22:05:28 x
์‰ฌ์šด์ฝ”๋“œ ๋ฐฐ์—ด์ด 0๋ฒˆ์งธ ๋ถ€ํ„ฐ ์‹œ์ž‘ํ•˜๋Š” ์ด์œ  2020-02-10 21:30:02 2025-02-13 22:05:28 x
์‰ฌ์šด์ฝ”๋“œ ํ•ด์„ค! 10000000 ์‹ญ์ง„์ˆ˜๋กœ ๋ฐ”๊พธ๋ฉด?! 2020-02-07 22:09:58 2025-02-13 22:05:28 x
์‰ฌ์šด์ฝ”๋“œ ํ€ด์ฆˆ! ์ด์ง„์ˆ˜๋ฅผ ์‹ญ์ง„์ˆ˜๋กœ ๋ฐ”๊พธ๊ธฐ 2020-02-04 23:03:45 2025-02-13 22:05:28 x
์‰ฌ์šด์ฝ”๋“œ ์ปดํ“จํ„ฐ ์Œ์˜ ์ •์ˆ˜ ํ‘œํ˜„ ๋ฐฉ๋ฒ• 2020-01-08 21:31:46 2025-02-13 22:05:28 x
์‰ฌ์šด์ฝ”๋“œ แ„แ…ฅแ†ทแ„‘แ…ฒแ„แ…ฅ ์–‘์˜ ์ •์ˆ˜ ํ‘œํ˜„ ๋ฐฉ๋ฒ• 2020-01-01 17:04:53 2025-02-13 22:05:28 x
์‰ฌ์šด์ฝ”๋“œ set ๋Œ€์‹  list๋ฅผ ์“ฐ๋ฉด? 2019-12-30 22:45:57 2025-02-13 22:05:28 x
์‰ฌ์šด์ฝ”๋“œ list set แ„Žแ…กแ„‹แ…ต 2019-12-25 22:48:25 2025-02-13 22:05:28 x
์‰ฌ์šด์ฝ”๋“œ ADT ๋œป ; ๋ฐ์ดํ„ฐ๊ตฌ์กฐ์™€ ์ฐจ์ด ; ์‹ค๋ฌด์—๋„ ์ค‘์š”ํ• ๊นŒ? 2019-12-16 22:27:58 2025-02-13 22:05:28 x
์‰ฌ์šด์ฝ”๋“œ array list แ„Žแ…กแ„‹แ…ต 2019-12-01 19:58:49 2025-02-13 22:05:28 x
์‰ฌ์šด์ฝ”๋“œ array list ์™€ linked list ์˜ ์ฐจ์ด 2019-11-25 23:31:57 2025-02-13 22:05:28 x
์‰ฌ์šด์ฝ”๋“œ แ„€แ…ขแ„‡แ…กแ†ฏแ„Œแ…ก ๋˜๋ ค๋ฉด แ„‹แ…งแ†ผแ„‹แ…ฅ แ„€แ…ฉแ†ผแ„‡แ…ฎ ๊ผญ ํ•ด์•ผํ•˜๋‚˜? 2019-10-12 10:07:54 2025-02-13 22:05:28 x
์‰ฌ์šด์ฝ”๋“œ ํ(queue) ์„ค๋ช… 2019-10-09 17:19:49 2025-02-13 22:05:28 x
์‰ฌ์šด์ฝ”๋“œ ์Šคํƒ(stack) ์„ค๋ช… 2019-10-06 18:38:08 2025-02-13 22:05:28 x