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์ „์ฒด๋ณด๊ธฐ (211)๋ฐฑ์ค€(82)ํŒŒ์ด์ฌ(27)DP(22)์ธํ”„๋Ÿฐ(21)๋ฆฌํ”„(21)JavaScript(20)BFS(17)programmers(15)DFS(13)React(12)์•Œ๊ณ ๋ฆฌ์ฆ˜(10)์ด๋ถ„ํƒ์ƒ‰(8)์ •๋ ฌ(7)๋‹ค์ต์ŠคํŠธ๋ผ(7)CSS(7)ํˆฌํฌ์ธํ„ฐ(7)๋ƒ…์ƒ‰(7)๊ทธ๋ฆฌ๋””(7)git(6)Java(6)Spring(5)vue(5)js(4)mysql(4)๊ตฌํ˜„(4)์ด์ง„ํƒ์ƒ‰(3)๋ฐฑํŠธ๋ž˜ํ‚น(3)ํž™(3)useState(2)๋ฆฌ์•กํŠธ(2)webpack(2)cors(2)๋น„๋™๊ธฐ(2)http(2)๋ถ„ํ• ์ •๋ณต(2)docker(2)ํ•ด์‹œ(2)์‹ค์ˆ˜(2)https1.1(1)react-icons(1)๋กœ๋“œ๋งต(1)callback(1)Module(1)call stack(1)MPA(1)ํ”„๋ก ํŠธ์—”๋“œ(1)computed(1)forked(1)๋ผ์ดํ”„์‚ฌ์ดํด(1)bean(1)useEffect(1)event loop(1)ํ™˜๊ฒฝ๋ณ€์ˆ˜(1)loader(1)Blocking(1).env.development(1)annotation(1)์›น(1)Spread(1)preflight(1)node.js(1)multiple page application(1)ํž™์ •๋ ฌ(1)์šฐ์„ ์ˆœ์œ„ํ(1)socket(1)env(1)http header(1)iTerm(1)https(1)bundler(1)next(1)๋ธŒ๋ฃจํŠธํฌ์Šค(1)์†Œ์ผ“(1)build(1)async/await(1)watch(1)์™„์ „ํƒ์ƒ‰(1)socket.io(1)ํŒŒ์ดํ”„๋ผ์ด๋‹(1)useMemo(1)useReducer(1)synchronous(1)this(1)์ถœ์ฒ˜(1)axios(1)clone(1)ํ€ต์ •๋ ฌ(1)useCallback(1)BrowserRouter(1)CSR(1)SSR(1)Single Thread(1)keey-alive(1)sinple page application(1)์Šคํƒ(1)spa(1)์กฐ๊ฑด๋ถ€๋ Œ๋”๋ง(1)github(1)http ํ—ค๋”(1)nonblocking(1)express(1)https1.0(1)ohmyzsh(1)Token(1)MST(1)origin(1)jdk(1)๋ณ‘ํ•ฉ์ •๋ ฌ(1)dependencies(1)PR(1)์ฑ„ํŒ…(1)callback queue(1)์ด์ง„ํƒ์ƒ‰ํŠธ๋ฆฌ(1)ํ„ฐ๋ฏธ๋„(1)sop(1)animation(1)server side rendering(1)์ปค์Šคํ…€(1)Client Side Rendering(1)asynchronous(1)์›น ๋ Œ๋”๋ง(1)์›นํŒฉ(1)promise(1)credentials(1)ํ”Œ๋กœ์ด๋“œ์›Œ์ƒฌ(1)npm(1)header(1)HTTP STATUS(1)์ด๋ฒคํŠธ๋ฃจํ”„(1)rename(1)์‹œ๋ฎฌ๋ ˆ์ด์…˜(1)๋ธŒ๋ผ์šฐ์ € ๋ Œ๋”๋ง(1)Cross-Origin Resource Sharing(1).env.production(1)process(1)๊ตฌ๊ฐ„ํ•ฉ(1)Proxy(1)react router dom(1)PageNotFound(1)maven(1)yarn(1)
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[ BOJ 2251 ] ๋ฌผํ†ต (Java)

https://www.acmicpc.net/problem/2251์ด ๋ฌธ์ œ๋งŒ ๋‘์‹œ๊ฐ„ ํ’€์—ˆ๋‹ค. ๊ฐ ๋‹ค ์žƒ์—ˆ๋‹ค๋ฆฌ์ž๋ฐ” ๋„˜ ์–ด๋ ต๋‹คQueue๋ฅผ ์ด์šฉํ•ด์„œ ๋ฌธ์ œ๋ฅผ ํ’€์—ˆ๋‹ค.A, B, C ๋ฌผํ†ต์— ๋‹ด๊ฒจ์žˆ๋Š” ๋ฌผ์˜ ์–‘์„ ๋ฐฐ์—ด์— ๋‹ด์•„ Queue์— ๋„ฃ๊ณ , ์˜ฎ๊ธธ ์ˆ˜ ์žˆ๋Š”์ง€ ์ฒดํฌํ•ด์ฃผ์—ˆ๋‹ค.f

2021๋…„ 9์›” 7์ผ
ยท
0๊ฐœ์˜ ๋Œ“๊ธ€
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[ BOJ 1987 ] ์•ŒํŒŒ๋ฒณ(Python)

https://www.acmicpc.net/problem/1987์ƒˆ๋กœ ์ด๋™ํ•œ ์นธ์— ์ ํžŒ ์•ŒํŒŒ๋ฒณ์€ ํ•œ๋ฒˆ๋„ ์ง€๋‚œ ์ ์ด ์—†์–ด์•ผ ํ•œ๋‹ค.์ด ๋•Œ ์ตœ๋Œ€ ๋ช‡ ์นธ์„ ์›€์ง์ผ ์ˆ˜ ์žˆ์„์ง€ ๊ตฌํ•˜๋Š” ๋ฌธ์ œ๋‹ค.์•ŒํŒŒ๋ฒณ์€ 26๊ฐœ๋ฐ–์— ๋˜์ง€ ์•Š๋Š”๋‹ค. ๊ฒฝ์šฐ์˜ ์ˆ˜๋„ ์ตœ๋Œ€ 400๊ฐœ์ด๋‹ˆ in ์œผ๋กœ ์ฒดํฌ

2021๋…„ 5์›” 13์ผ
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0๊ฐœ์˜ ๋Œ“๊ธ€
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[ Programmers 49189 ] ๊ฐ€์žฅ ๋จผ ๋…ธ๋“œ(Python)

https://programmers.co.kr/learn/courses/30/lessons/491891๋ฒˆ ๋…ธ๋“œ์—์„œ ๊ฐ€์žฅ ๋จผ ๋…ธ๋“œ๋ฅผ ์ฐพ๋Š” bfs ๋ฌธ์ œ๋‹ค.์ฃผ์–ด์ง„ ํ–‰๋ ฌ์„ ์–‘๋ฐฉํ–ฅ ๊ทธ๋ž˜ํ”„๋กœ ๋งŒ๋“ค์–ด์ค€๋‹ค.์—ฐ๊ฒฐ๋œ ๋…ธ๋“œ๋กœ ์ด๋™ํ•˜๋ฉด์„œ queue์— (ํ˜„์žฌ ์œ„์น˜, ์ด๋™ ๊ฑฐ๋ฆฌ)๋ฅผ ์ €

2021๋…„ 5์›” 7์ผ
ยท
0๊ฐœ์˜ ๋Œ“๊ธ€
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[ Programmers 1844 ] ๊ฒŒ์ž„ ๋งต ์ตœ๋‹จ๊ฑฐ๋ฆฌ(Python)

๋ฌธ์ œ https://programmers.co.kr/learn/courses/30/lessons/1844 ๋ฌธ์ œ ํ’€์ด ์ฝ”๋“œ

2021๋…„ 5์›” 7์ผ
ยท
0๊ฐœ์˜ ๋Œ“๊ธ€
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[ BOJ 1753 ] ์ตœ๋‹จ ๊ฒฝ๋กœ(Python)

https://www.acmicpc.net/problem/1753์–ด๋–ค ๋ฐฉํ–ฅ ๊ทธ๋ž˜ํ”„๊ฐ€ ์ฃผ์–ด์กŒ์„ ๋•Œ, ์‹œ์ž‘์ ์—์„œ ๋‹ค๋ฅธ ์ •์ ๋“ค๋กœ ์ด๋™ํ•  ์ˆ˜ ์žˆ๋Š” ์ตœ๋‹จ ๊ฑฐ๋ฆฌ๋ฅผ ๊ตฌํ•˜๋Š” ๋ฌธ์ œ์ด๋‹ค.์ฃผ์˜ํ•  ์ ์€ โœจ๋‘ ์ •์  ์‚ฌ์ด์— ์—ฌ๋Ÿฌ ๊ฐ„์„ ์ด ์กด์žฌํ•  ์ˆ˜๋„ ์žˆ๋‹ค๋Š” ์ ์ด๋‹ค.์šฐ์„  ๋ฐฉํ–ฅ๊ทธ๋ž˜ํ”„๋ฅผ ๋งŒ๋“ค

2021๋…„ 3์›” 15์ผ
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0๊ฐœ์˜ ๋Œ“๊ธ€
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[ BOJ 1260 ] DFS์™€ BFS(Python)

https://www.acmicpc.net/problem/1260๋˜‘๊ฐ™์ด ์ฃผ์–ด์ง€๋Š” ์ •์ ์— ๋Œ€ํ•ด์„œ dfs,bfs ๊ฐ’์„ ๊ตฌํ•˜๋ฉด ๋œ๋‹ค.๋ฐฉ๋ฌธํ•  ์ˆ˜ ์žˆ๋Š” ์ •์ ์ด ์—ฌ๋Ÿฌ ๊ฐœ์ธ ๊ฒฝ์šฐ์—๋Š” ์ •์  ๋ฒˆํ˜ธ๊ฐ€ ์ž‘์€ ๊ฒƒ์„ ๋จผ์ € ๋ฐฉ๋ฌธ ํ•ด์•ผ ํ•œ๋‹ค๋Š” ์  ...๋งŒ ์ฃผ์˜ํ•˜๋ฉด ๋œ๋‹ค. ๐Ÿ™‚์šฐ์„  ์ฃผ์–ด์ง„

2021๋…„ 2์›” 21์ผ
ยท
0๊ฐœ์˜ ๋Œ“๊ธ€
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[ BOJ 1325 ] ํšจ์œจ์ ์ธ ํ•ดํ‚น(Python)

https://www.acmicpc.net/problem/1325A๊ฐ€ B๋ฅผ ์‹ ๋ขฐํ•  ๋•Œ, B๋ฅผ ํ•ดํ‚นํ•˜๋ฉด A๋„ ํ•ดํ‚นํ•  ์ˆ˜ ์žˆ๋‹ค.์‹ ๋ขฐํ•˜๋Š” ๊ด€๊ณ„๊ฐ€ ์ฃผ์–ด์กŒ์„ ๋•Œ, ๊ฐ€์žฅ ๋งŽ์ด ํ•ดํ‚นํ•  ์ˆ˜ ์žˆ๋Š” ์ปดํ“จํ„ฐ์˜ ์ˆ˜๋ฅผ ๊ตฌํ•˜๋Š” ๋ฌธ์ œ์ด๋‹ค.์‹ ๋ขฐํ•˜๋Š” ๊ด€๊ณ„๊ฐ€ a โžฃ b ๋‹ค์Œ๊ณผ ๊ฐ™์ด ์ฃผ์–ด์ง€๋ฏ€๋กœ

2021๋…„ 2์›” 21์ผ
ยท
0๊ฐœ์˜ ๋Œ“๊ธ€
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[ BOJ 1697 ] ์ˆจ๋ฐ”๊ผญ์งˆ(Python)

https://www.acmicpc.net/problem/1697์ˆ˜๋นˆ์ด๋Š” ์–ด์ฉŒ๋‹ค๊ฐ€ ์ˆœ๊ฐ„์ด๋™์„ ํ•˜๊ฒŒ๋œ๊ฑธ๊นŒ.. ๐Ÿ™‚๐Ÿ™ƒ๐Ÿ™‚์ˆ˜๋นˆ์ด์˜ ์œ„์น˜์—์„œ 1์ดˆ ํ›„์— ์ด๋™ํ•  ์ˆ˜ ์žˆ๋Š” 3๊ฐ€์ง€ ๊ฒฝ๋กœ๋ฅผ ์ฒดํฌํ•˜๋ฉฐ ์ด๋™ํ•œ๋‹ค๊ณ  ์ƒ๊ฐํ•˜๋‹ˆ ์‰ฝ๊ฒŒ ํ’€์—ˆ๋˜ ๋ฌธ์ œ๋‹ค.visited ํ•จ์ˆ˜๋ฅผ ๊ทธ๋ž˜ํ”„๋กœ ํ•ด์ฃผ

2021๋…„ 2์›” 21์ผ
ยท
0๊ฐœ์˜ ๋Œ“๊ธ€
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[ BOJ 1707 ] ์ด๋ถ„๊ทธ๋ž˜ํ”„(Python)

https://www.acmicpc.net/problem/1707์ด๋ถ„ ๊ทธ๋ž˜ํ”„์˜ ๊ฐœ๋…์„ ์ดํ•ดํ•˜๋Š”๋ฐ์— ์‹œ๊ฐ„์ด ์กฐ๊ธˆ ๊ฑธ๋ ธ๋‹ค.์ธ์ ‘ํ•œ ์ •์ ๋ผ๋ฆฌ ์„œ๋กœ ๋‹ค๋ฅธ ์ƒ‰์œผ๋กœ ์น ํ•ด์„œ ๋ชจ๋“  ์ •์ ์„ ๋‘ ๊ฐ€์ง€ ์ƒ‰์œผ๋กœ๋งŒ ์น ํ•  ์ˆ˜ ์žˆ๋Š” ๊ทธ๋ž˜ํ”„.์ฆ‰, ์„œ๋กœ ๋‹ค๋ฅธ ๊ทธ๋ฃน์˜ ์ •์ ์ด ๊ฐ„์„ ์œผ๋กœ ์—ฐ๊ฒฐ๋˜์–ด

2021๋…„ 2์›” 21์ผ
ยท
0๊ฐœ์˜ ๋Œ“๊ธ€
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[ BOJ 2178 ] ๋ฏธ๋กœ ํƒ์ƒ‰(Python)

https://www.acmicpc.net/problem/2178\[BOJ 2667. ๋ฒฝ์„ ๋ถ€์‹œ๊ณ  ์ด๋™ํ•˜๊ธฐ] ๋ฌธ์ œ์— ๋šœ๋“ค๊ฒจ ๋งž๊ธฐ ์ „์—, ๋ฏธ๋ฆฌ ํ’€๋ฉด ์ข‹์„ ๊ฒƒ ๊ฐ™๋‹ค. ๐Ÿ˜ˆ์ถœ๋ฐœ์ง€์—์„œ ๋„์ฐฉ์ง€๊นŒ์ง€ ๊ฐ€์žฅ ์งง์€ ์นธ ์ˆ˜๋กœ ์ด๋™ํ•˜๋Š” ๋ฌธ์ œ๋‹ค.bfs์˜ ๋Œ€ํ‘œ์ ์ธ ๋ฌธ์ œ๋‹ˆ๊นŒ ์ต์ˆ™ํ•ด์ง€๋ฉด

2021๋…„ 2์›” 21์ผ
ยท
0๊ฐœ์˜ ๋Œ“๊ธ€
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[ BOJ 2667 ] ๋ฒฝ ๋ถ€์ˆ˜๊ณ  ์ด๋™ํ•˜๊ธฐ(Python)

https://www.acmicpc.net/problem/2206์™€,, ์ง„์งœ ์ž‘์‚ด๋‚˜๊ฒŒ ์–ด๋ ค์› ๋˜ ๋ฌธ์ œ๋‹ค.ํ‘ธ๋Š”๋ฐ ๋„ˆ๋ฌด ์–ด๋ ค์›Œ์„œ ๋ฌด๊ธฐ๋ ฅํ–ˆ๋‹ค..์•Œ๊ณ ๋ฆฌ์ฆ˜ ๊ณ ์ˆ˜ ๋ฉ‹์Ÿ์ด(โœจ)ํ•œํ…Œ ํ—ฌํ”„ ์š”์ฒญํ•ด์„œ ๊ฒจ์šฐ ํ’€์—ˆ๋‹ค ใ… ใ…กใ…  ์ฒ˜์Œ์— ์ ‘๊ทผํ–ˆ๋˜ ๋ฐฉ๋ฒ•์€ ๋‹ค์Œ๊ณผ ๊ฐ™๋‹ค.์ถœ๋ฐœ์ง€์ธ (0, 0) ์„

2021๋…„ 2์›” 21์ผ
ยท
0๊ฐœ์˜ ๋Œ“๊ธ€
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[ BOJ 2644 ] ์ดŒ์ˆ˜๊ณ„์‚ฐ(Python)

https://www.acmicpc.net/problem/2644๋ฌธ์ œ๋ฅผ ํŠธ๋ฆฌ ํ˜•ํƒœ๋กœ ์ƒ๊ฐํ•ด์„œ ๋” ์–ด๋ ต๊ฒŒ ์ ‘๊ทผํ•˜๋ ค๊ณ  ํ–ˆ๋‹ค.๊ทธ๋ƒฅ bfs ๋ฌธ์ œ์™€ ๋™์ผํ•˜๊ฒŒ ํ’€๋ฉด ๋œ๋‹ค!๊ทธ๋ž˜ํ”„๋ฅผ 2์ฐจ์› ๋ฐฐ์—ด๋กœ ๋งŒ๋“ค๊ณ , ๊ฐ๊ฐ์˜ ์ธ๋ฑ์Šค์— ์—ฐ๊ฒฐ๋œ ์‚ฌ๋žŒ์„ ์ถ”๊ฐ€ํ•ด์ค€๋‹ค. (ex. 1๋ฒˆ์งธ ์ธ๋ฑ์Šค์—”

2021๋…„ 2์›” 21์ผ
ยท
0๊ฐœ์˜ ๋Œ“๊ธ€
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[ BOJ 2667 ] ๋‹จ์ง€ ๋ฒˆํ˜ธ ๋ถ™์ด๊ธฐ(Python)

https://www.acmicpc.net/problem/2667์—ฐ๊ฒฐ๋œ ์ง‘์˜ ๋‹จ์ง€์ˆ˜๋ฅผ ์ถœ๋ ฅํ•˜๊ณ , ๊ฐ ๋‹จ์ง€์— ์†ํ•˜๋Š” ์ง‘์˜ ์ˆ˜๋ฅผ ์˜ค๋ฆ„์ฐจ์ˆœ์œผ๋กœ ์ถœ๋ ฅํ•˜๋Š” ๋ฌธ์ œ์ด๋‹ค.๋ฌธ์ œ๋ฅผ ์ž˜ ์ฝ์ง€์•Š์•„์„œ ์ด์ „ ๋ฌธ์ œ์™€ ๋งˆ์ฐฌ๊ฐ€์ง€๋กœ ์‚ฝ์งˆ์„ ํ–ˆ๋‹ค. โ›visited ํ•จ์ˆ˜๋ฅผ ๋”ฐ๋กœ ๋งŒ๋“ค์ง€ ์•Š๊ณ , ํ•œ

2021๋…„ 2์›” 21์ผ
ยท
0๊ฐœ์˜ ๋Œ“๊ธ€
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[ BOJ 7569 ] ํ† ๋งˆํ† 2 (Python)

https://www.acmicpc.net/problem/7569์•ž์˜ ๋ฌธ์ œ์™€ ๊ฑฐ์˜ ๋™์ผํ•˜๋‹ค.๋‹ค๋ฅธ๊ฒŒ ์žˆ๋‹ค๋ฉด ํ† ๋งˆํ† ๊ฐ€ '์ƒํ•˜์ขŒ์šฐ + ์•ž๋’ค'์˜ ์˜ํ–ฅ์„ ๋ฐ›๋Š”๋‹ค๋Š” ๊ฒƒ์ด๋‹ค.๋ฌธ์ œ๋ณด๋‹ค๋Š” 3์ฐจ์› ๋ฐฐ์—ด์„ ์“ฐ๋Š” ๊ฒƒ์ด ๊ฑฐ์˜ ์ฒ˜์Œ์ด๋ผ, ์ด๊ฒŒ ๋” ์–ด๋ ค์› ๋˜ ๊ฒƒ ๊ฐ™๋‹ค.numpy ๋ชจ๋“ˆ์„ i

2021๋…„ 2์›” 21์ผ
ยท
0๊ฐœ์˜ ๋Œ“๊ธ€
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[ BOJ 7576 ] ํ† ๋งˆํ†  (Python)

https://www.acmicpc.net/problem/7576ํ† ๋งˆํ† ๊ฐ€ '์ƒํ•˜์ขŒ์šฐ' ์— ์˜ํ–ฅ์„ ๋ฐ›๋Š”๋‹ค.๊ทธ๋ž˜ํ”„๋ฅผ ๋งŒ๋“ค๋•Œ ๋”•์…”๋„ˆ๋ฆฌ๊ฐ€ ์•„๋‹Œ ์ด์ค‘๋ฐฐ์—ด์„ ์‚ฌ์šฉํ•ด๋ณด์•˜๋‹ค.์ต์€ ํ† ๋งˆํ† ์ด๋ฉด (x,y,cnt)๋ฅผ queue์— ๋„ฃ์–ด์ฃผ์—ˆ๋‹ค.์ต์€ ํ† ๋งˆํ† ์˜ ์ƒํ•˜์ขŒ์šฐ๊ฐ€ ์•ˆ์ต์€ ํ† ๋งˆํ† ์ด๋ฉด

2021๋…„ 2์›” 21์ผ
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0๊ฐœ์˜ ๋Œ“๊ธ€
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[ BOJ 7562 ] ๋‚˜์ดํŠธ์˜ ์ด๋™ (Python)

https://www.acmicpc.net/problem/7562bfs์˜ ๋Œ€ํ‘œ์ ์ธ ๋ฌธ์ œ๋ผ๊ณ  ํ•  ์ˆ˜ ์žˆ๊ฒ ๋‹ค. (n-queen์ด๋ž‘ ๋น„์Šทํ•˜๋‹ˆ๊นŒ,, )dx, dy ๋ฐฐ์—ด์— ๋‚˜์ดํŠธ๊ฐ€ ์ด๋™ํ•  ์ˆ˜ ์žˆ๋Š” ์นธ์„ ์ •์˜ํ•œ๋‹ค.queue์— (x ์ขŒํ‘œ, y ์ขŒํ‘œ, ์ด๋™ํ•œ ํšŸ์ˆ˜) ๋ฅผ ๋„ฃ

2021๋…„ 2์›” 21์ผ
ยท
0๊ฐœ์˜ ๋Œ“๊ธ€
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[ BOJ 10026 ] ์ ๋ก์ƒ‰์•ฝ (Python)

https://www.acmicpc.net/problem/10026๋˜‘๊ฐ™์€ ๊ทธ๋ฆผ์„ ์ ๋ก์ƒ‰์•ฝ์ธ ์‚ฌ๋žŒ๊ณผ, ๊ทธ๋ ‡์ง€ ์•Š์€ ์‚ฌ๋žŒ์ด ๋ณด์•˜์„ ๋•Œ ์˜์—ญ์˜ ๊ฐœ์ˆ˜๋ฅผ ๊ตฌํ•˜๋Š” ๋ฌธ์ œ๋‹ค." ์ƒํ•˜์ขŒ์šฐ๋ฅผ ์ฒดํฌํ•ด์„œ ๊ทธ๋ž˜ํ”„๋กœ ์—ฐ๊ฒฐํ•˜๊ณ , ์˜์—ญ์˜ ๊ฐœ์ˆ˜๋ฅผ ๊ตฌํ•˜๋ฉด ๋˜๋Š”๊ฑฐ ์•„๋‹Œ๊ฐ€? ์‰ฝ๋„ค~"์ด๋ ‡๊ฒŒ ์ƒ๊ฐํ•˜

2021๋…„ 2์›” 21์ผ
ยท
0๊ฐœ์˜ ๋Œ“๊ธ€