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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 9663 ] N-Queen (Python)

ํ€ธ์€ ์ƒ, ํ•˜, ์ขŒ, ์šฐ, ๋Œ€๊ฐ์„ ์œผ๋กœ ๊ฑฐ๋ฆฌ์ œ์•ฝ ์—†์ด ์ด๋™ํ•  ์ˆ˜ ์žˆ๋‹ค.N x N ์ฒด์ŠคํŒ์— N๊ฐœ์˜ ํ€ธ์„ ๋ฐฐ์น˜ํ•ด์•ผํ•˜๋ฏ€๋กœ ๋ฐ˜๋“œ์‹œ ๋ชจ๋“  ํ–‰์— ํ€ธ์ด ๋“ค์–ด๊ฐ€์•ผ ํ•œ๋‹ค.๋”ฐ๋ผ์„œ 0์—ด๋ถ€ํ„ฐ N-1์—ด๊นŒ์ง€ ํ€ธ์„ ๋†“๋Š” ๋ฐฉ๋ฒ•์„ for๋ฌธ์œผ๋กœ ๋Œ๋ฆฐ๋‹ค. (dfs)์ด์ „ ์—ด์— ๊ฒน์น˜๋Š” ํ–‰์ด ์žˆ๋Š”์ง€ ์ฒดํฌํ•ด์ค€๋‹ค

2021๋…„ 5์›” 14์ผ
ยท
0๊ฐœ์˜ ๋Œ“๊ธ€
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[ BOJ 2583 ] ์˜์—ญ ๊ตฌํ•˜๊ธฐ(Python)

https://www.acmicpc.net/problem/2583์ž…๋ ฅ์ด.. ๋”๋Ÿฌ์› ๋‹ค.. ๊ทธ๋ฆฌ๊ณ  ๋‚ด ํ’€์ด๋„.. ,.์ง„์‹ฌ ๋„˜ ๋”๋Ÿฝ๊ฒŒ ํ’€์–ด์„œ ๋‹ค์‹œ ํ’€์–ด์•ผ ํ•  ๊ฒƒ ๊ฐ™๋‹ค.์šฐ์„  ์ž…๋ ฅ์„ ๋ฐ›์•„์„œ maps ๊ทธ๋ž˜ํ”„๋ฅผ ๋งŒ๋“ค์–ด์ฃผ์—ˆ๋‹ค.๊ทธ๋ž˜ํ”„๋Š” 0์œผ๋กœ ์ดˆ๊ธฐํ™” ํ•ด์ฃผ๊ณ , ์ง์‚ฌ๊ฐํ˜•์˜ ๋ฒ”์œ„๋งŒ

2021๋…„ 5์›” 13์ผ
ยท
0๊ฐœ์˜ ๋Œ“๊ธ€
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[ BOJ 1167 ] ํŠธ๋ฆฌ์˜ ์ง€๋ฆ„(Python)

https://www.acmicpc.net/problem/1167ํŠธ๋ฆฌ์˜ ์ง€๋ฆ„์„ ๊ตฌํ•˜๋Š” ๊ณต์‹์„ ์•Œ๋ฉด ๋น ๋ฅด๊ฒŒ ํ’€ ์ˆ˜ ์žˆ๋‹ค. (๋‚˜๋Š”๋ชฐ๋ž๋‹ค)"ํŠธ๋ฆฌ์˜ ์ง€๋ฆ„์„ ๊ตฌํ•˜๋Š” ๊ณต์‹์€ ์ž„์˜์˜ ํ•˜๋‚˜์˜ ๋…ธ๋“œ A์—์„œ ๊ฐ€์žฅ ๊ฑฐ๋ฆฌ๊ฐ€ ๋จผ ๋…ธ๋“œ B๋ฅผ ๊ตฌํ•˜๊ณ , ์ด ๋…ธ๋“œ B์—์„œ ๊ฐ€์žฅ ๊ฑฐ๋ฆฌ๊ฐ€ ๋จผ ๋…ธ

2021๋…„ 5์›” 13์ผ
ยท
0๊ฐœ์˜ ๋Œ“๊ธ€
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[ BOJ 11725 ] ํŠธ๋ฆฌ์˜ ๋ถ€๋ชจ ์ฐพ๊ธฐ(Python)

https://www.acmicpc.net/problem/11725ํŠธ๋ฆฌ๊ฐ€ ์ฃผ์–ด์กŒ์„ ๋•Œ, ๊ฐ ๋…ธ๋“œ์˜ ๋ถ€๋ชจ๋ฅผ ๊ตฌํ•˜๋Š” ๋ฌธ์ œ๋‹ค.์ด๋•Œ ํŠธ๋ฆฌ์˜ ์ •์ ์€ 1์ด๊ณ , 2๋ฒˆ ๋…ธ๋“œ๋ถ€ํ„ฐ ๋ถ€๋ชจ๋ฅผ ์ถœ๋ ฅํ•œ๋‹ค.์ž…๋ ฅ ๋ฐ›์€ ์ •์ ์œผ๋กœ ๊ทธ๋ž˜ํ”„๋ฅผ ์–‘๋ฐฉํ–ฅ์œผ๋กœ ๋งŒ๋“ค์–ด์คฌ๋‹ค.1๋ฒˆ ๋…ธ๋“œ์™€ ์ •๋‹ต ๋ฆฌ์ŠคํŠธ๋ฅผ df

2021๋…„ 3์›” 15์ผ
ยท
0๊ฐœ์˜ ๋Œ“๊ธ€
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[ Programmers 43164 ] ์—ฌํ–‰๊ฒฝ๋กœ(Python)

https://programmers.co.kr/learn/courses/30/lessons/43164https://leetcode.com/problems/reconstruct-itinerary/๋ฆฌํŠธ์ฝ”๋“œ์—์„œ ๋™์ผํ•œ ๋ฌธ์ œ๋ฅผ ํ‘ผ ์ ์ด ์žˆ์–ด์„œ ๊ฐ™์€ ๋ฐฉ๋ฒ•์œผ๋กœ

2021๋…„ 2์›” 21์ผ
ยท
0๊ฐœ์˜ ๋Œ“๊ธ€
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[ Programmers 43163 ] ๋‹จ์–ด ๋ณ€ํ™˜(Python)

https://programmers.co.kr/learn/courses/30/lessons/43163์‹œ์ž‘ ๋‹จ์–ด์—์„œ ํƒ€๊ฒŸ ๋‹จ์–ด๊นŒ์ง€ ํ•œ๊ธ€์ž์”ฉ๋งŒ ๋ณ€ํ™”ํ•  ๋•Œ ๊ฐ€์žฅ ์งง์€ ๋ณ€ํ™˜ ๊ณผ์ •์„ ์ฐพ๋Š” ๋ฌธ์ œ์ด๋‹ค.๋ณ€ํ™˜ํ•  ์ˆ˜ ์—†๋Š” ๊ฒฝ์šฐ์—๋Š” 0์„ ๋ฆฌํ„ดํ•˜๋ฉด ๋œ๋‹ค.ํƒ€๊ฒŸ ๋‹จ์–ด๊ฐ€ ๋‹จ์–ด์˜ ์ง‘ํ•ฉ์ธ

2021๋…„ 2์›” 21์ผ
ยท
0๊ฐœ์˜ ๋Œ“๊ธ€
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[ Programmers 43162 ] ๋„คํŠธ์›Œํฌ(Python)

https://programmers.co.kr/learn/courses/30/lessons/43162์—ฐ๊ฒฐ์— ๋Œ€ํ•œ ์ด์ฐจ์› ๋ฐฐ์—ด์ด ์ฃผ์–ด์กŒ์„ ๋•Œ, ์—ฐ๊ฒฐ๋œ ๋„คํŠธ์›Œํฌ ๊ฐœ์ˆ˜๋ฅผ return ํ•˜๋Š” ๋ฌธ์ œ๋‹ค.์ฃผ์–ด์ง„ ์ด์ฐจ์› ๋ฐฐ์—ด๋กœ ๊ทธ๋ž˜ํ”„๋ฅผ ๋งŒ๋“ค์—ˆ๋‹ค.๋ฐฉ๋ฌธํ•˜์ง€ ์•Š์€ ์ •์ ์ด๋ฉด, ๋ฐฉ๋ฌธ

2021๋…„ 2์›” 21์ผ
ยท
0๊ฐœ์˜ ๋Œ“๊ธ€
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[ Programmers 43165 ] ํƒ€์ผ“๋„˜๋ฒ„(Python)

๋ฌธ์ œ https://programmers.co.kr/learn/courses/30/lessons/43165 ์ฃผ์–ด์ง„ ์ˆซ์ž๋ฆฌ์ŠคํŠธ numbers ๋ฅผ ๋”ํ•˜๊ณ  ๋นผ์„œ, ํƒ€์ผ“ ๋„˜๋ฒ„๊ฐ€ ๋  ์ˆ˜ ์žˆ๋Š” ๋ฐฉ๋ฒ•์˜ ์ˆ˜๋ฅผ ๊ตฌํ•˜๋Š” ๋ฌธ์ œ๋‹ค. ํŠธ๋ฆฌ ํ˜•ํƒœ๋กœ ์ƒ๊ฐ์„ ํ•˜๋‹ˆ ์กฐ๊ธˆ ์‰ฌ์—ˆ๋‹ค. ๋ฌธ์ œ ํ’€์ด ![](https://images.velog.io/images/uoayop/post/10f4...

2021๋…„ 2์›” 21์ผ
ยท
0๊ฐœ์˜ ๋Œ“๊ธ€
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[ BOJ 1012 ] ์œ ๊ธฐ๋† ๋ฐฐ์ถ”(Python)

https://www.acmicpc.net/problem/1012๋ถ„๋ฆฌ๋œ ์˜์—ญ์˜ ๊ฐœ์ˆ˜๋ฅผ ์„ธ๋ฉด ๋˜๋Š” ๋ฌธ์ œ๋‹ค. ez๋ฐฐ์ถ”๊ฐ€ ์‹ฌ์–ด์ง„ ์œ„์น˜๋ฅผ ๋ชจ๋‘ ์ฃผ์–ด์ฃผ๊ธฐ ๋•Œ๋ฌธ์— ๊ทธ๋Œ€๋กœ ์ฐจ๊ณก์ฐจ๊ณก ๊ทธ๋ž˜ํ”„๋ฅผ ๋งŒ๋“ค๋ฉด ๋œ๋‹ค.์ž…๋ ฅ ๋ฐ›์€ ์œ„์น˜ (x,y) ๋ฅผ key ๊ฐ’์œผ๋กœ ๊ฐ–๊ฒŒ ๊ทธ๋ž˜ํ”„์— ์ถ”๊ฐ€ํ•ด์ค€๋‹ค.

2021๋…„ 2์›” 21์ผ
ยท
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 2606 ] ๋ฐ”์ด๋Ÿฌ์Šค(Python)

https://www.acmicpc.net/problem/26061๋ฒˆ ์ปดํ“จํ„ฐ์™€ ์—ฐ๊ฒฐ๋œ ์ปดํ“จํ„ฐ์˜ ์ˆ˜๋ฅผ ๊ตฌํ•˜๋Š” ๋ฌธ์ œ์ด๋‹ค.dfs๋ฅผ ์ด์šฉํ•ด์„œ ๊ฐ„๋‹จํ•˜๊ฒŒ ํ’€ ์ˆ˜ ์žˆ๋‹ค.์–‘๋ฐฉํ–ฅ์œผ๋กœ ๊ทธ๋ž˜ํ”„๋ฅผ ๋งŒ๋“ค์–ด์ค€๋‹ค.ํ•ด๋‹น ๋…ธ๋“œ๋ฅผ ๋ฐฉ๋ฌธํ•œ ์ ์ด ์—†์œผ๋ฉด ๋ฐฉ๋ฌธํ–ˆ๋‹ค๊ณ  ์ฒดํฌํ•ด์ค€ ๋’ค์—, ๋…ธ๋“œ์™€ ์—ฐ๊ฒฐ๋œ

2021๋…„ 2์›” 21์ผ
ยท
0๊ฐœ์˜ ๋Œ“๊ธ€
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[ BOJ 4963 ] ์„ฌ์˜ ๊ฐœ์ˆ˜ (Python)

https://www.acmicpc.net/problem/4963๋ฌธ์ œ๋ฅผ ์ž˜ ์ฝ์–ด์•ผํ•œ๋‹ค. ๊ฐ€๋กœ + ์„ธ๋กœ + ๋Œ€๊ฐ์„  ์œผ๋กœ ์—ฐ๊ฒฐ๋˜์–ด ์žˆ๋Š” ์‚ฌ๊ฐํ˜•์ด ๊ฑธ์–ด๊ฐˆ ์ˆ˜ ์žˆ๋Š” ๊ณณ์ด๋‹ค.๋ฌธ์ œ๋ฅผ ๋Œ€์ถฉ ์ฝ์–ด์„œ ๊ฐ€๋กœ + ์„ธ๋กœ๋งŒ ์—ฐ๊ฒฐ๋˜์–ด ์žˆ๋‹ค๊ณ ,,, ๋ดค๋‹ค (์‚ฝ์งˆโ›)๋ฐ”๋‹ค๊ฐ€ ์•„๋‹Œ ๋•…(1)์ผ

2021๋…„ 2์›” 21์ผ
ยท
0๊ฐœ์˜ ๋Œ“๊ธ€
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[ BOJ 11724 ] ์—ฐ๊ฒฐ ์š”์†Œ์˜ ๊ฐœ์ˆ˜ (Python)

https://www.acmicpc.net/problem/11724๋ฐฉํ–ฅ ์—†๋Š” ๊ทธ๋ž˜ํ”„๊ฐ€ ์ฃผ์–ด์กŒ์„ ๋•Œ, ์—ฐ๊ฒฐ ์š”์†Œ์˜ ๊ฐœ์ˆ˜๋ฅผ ๊ตฌํ•˜๋Š” ์‰ฌ์šด ๋ฌธ์ œ์ด๋‹ค.DFS์˜ ๊ธฐ๋ณธ ๊ฐœ๋…์„ ์ดํ•ดํ•˜๊ณ  ํ‘ผ๋‹ค๋ฉด ์‰ฝ๊ฒŒ ํ’€ ์ˆ˜ ์žˆ๋‹ค.์šฐ์„  ๊ทธ๋ž˜ํ”„๋ฅผ ๋”•์…”๋„ˆ๋ฆฌ๋กœ ๋งŒ๋“ค์–ด์ฃผ๊ณ , ์–‘๋ฐฉํ–ฅ์œผ๋กœ ์—ฐ๊ฒฐํ•ด์ค€๋‹ค.(

2021๋…„ 2์›” 21์ผ
ยท
0๊ฐœ์˜ ๋Œ“๊ธ€