๋ณธ๋ฌธ ๋ฐ”๋กœ๊ฐ€๊ธฐ
๋ฐ˜์‘ํ˜•

ํ”„๋กœ๊ทธ๋ž˜๋จธ์Šค16

[C++/ํ”„๋กœ๊ทธ๋ž˜๋จธ์Šค] ์•ผ๊ทผ ์ง€์ˆ˜ ๋ฌธ์ œ https://programmers.co.kr/learn/courses/30/lessons/12927# ์ฝ”๋”ฉํ…Œ์ŠคํŠธ ์—ฐ์Šต - ์•ผ๊ทผ ์ง€์ˆ˜ ํšŒ์‚ฌ์› Demi๋Š” ๊ฐ€๋”์€ ์•ผ๊ทผ์„ ํ•˜๋Š”๋ฐ์š”, ์•ผ๊ทผ์„ ํ•˜๋ฉด ์•ผ๊ทผ ํ”ผ๋กœ๋„๊ฐ€ ์Œ“์ž…๋‹ˆ๋‹ค. ์•ผ๊ทผ ํ”ผ๋กœ๋„๋Š” ์•ผ๊ทผ์„ ์‹œ์ž‘ํ•œ ์‹œ์ ์—์„œ ๋‚จ์€ ์ผ์˜ ์ž‘์—…๋Ÿ‰์„ ์ œ๊ณฑํ•˜์—ฌ ๋”ํ•œ ๊ฐ’์ž…๋‹ˆ๋‹ค. Demi๋Š” N์‹œ๊ฐ„ ๋™์•ˆ ์•ผ๊ทผ ํ”ผ๋กœ๋„ programmers.co.kr ํšŒ์‚ฌ์› Demi๋Š” ๊ฐ€๋”์€ ์•ผ๊ทผ์„ ํ•˜๋Š”๋ฐ์š”, ์•ผ๊ทผ์„ ํ•˜๋ฉด ์•ผ๊ทผ ํ”ผ๋กœ๋„๊ฐ€ ์Œ“์ž…๋‹ˆ๋‹ค. ์•ผ๊ทผ ํ”ผ๋กœ๋„๋Š” ์•ผ๊ทผ์„ ์‹œ์ž‘ํ•œ ์‹œ์ ์—์„œ ๋‚จ์€ ์ผ์˜ ์ž‘์—…๋Ÿ‰์„ ์ œ๊ณฑํ•˜์—ฌ ๋”ํ•œ ๊ฐ’์ž…๋‹ˆ๋‹ค. Demi๋Š” N์‹œ๊ฐ„ ๋™์•ˆ ์•ผ๊ทผ ํ”ผ๋กœ๋„๋ฅผ ์ตœ์†Œํ™”ํ•˜๋„๋ก ์ผํ•  ๊ฒ๋‹ˆ๋‹ค. Demi๊ฐ€ 1์‹œ๊ฐ„ ๋™์•ˆ ์ž‘์—…๋Ÿ‰ 1๋งŒํผ์„ ์ฒ˜๋ฆฌํ•  ์ˆ˜ ์žˆ๋‹ค๊ณ  ํ•  ๋•Œ, ํ‡ด๊ทผ๊นŒ์ง€ ๋‚จ์€ N ์‹œ๊ฐ„๊ณผ ๊ฐ ์ผ์— ๋Œ€ํ•œ ์ž‘์—…๋Ÿ‰ w.. 2022. 4. 5.
[C++/ํ”„๋กœ๊ทธ๋ž˜๋จธ์Šค] ์ˆซ์ž ๊ฒŒ์ž„ ๋ฌธ์ œ https://programmers.co.kr/learn/courses/30/lessons/12987 ์ฝ”๋”ฉํ…Œ์ŠคํŠธ ์—ฐ์Šต - ์ˆซ์ž ๊ฒŒ์ž„ xx ํšŒ์‚ฌ์˜ 2xN๋ช…์˜ ์‚ฌ์›๋“ค์€ N๋ช…์”ฉ ๋‘ ํŒ€์œผ๋กœ ๋‚˜๋ˆ  ์ˆซ์ž ๊ฒŒ์ž„์„ ํ•˜๋ ค๊ณ  ํ•ฉ๋‹ˆ๋‹ค. ๋‘ ๊ฐœ์˜ ํŒ€์„ ๊ฐ๊ฐ AํŒ€๊ณผ BํŒ€์ด๋ผ๊ณ  ํ•˜๊ฒ ์Šต๋‹ˆ๋‹ค. ์ˆซ์ž ๊ฒŒ์ž„์˜ ๊ทœ์น™์€ ๋‹ค์Œ๊ณผ ๊ฐ™์Šต๋‹ˆ๋‹ค. ๋จผ์ € ๋ชจ๋“  ์‚ฌ์›์ด ๋ฌด์ž‘์œ„๋กœ programmers.co.kr ํ’€์ด A์™€ B๋ฅผ ๋ชจ๋‘ ๋‚ด๋ฆผ์ฐจ์ˆœ์œผ๋กœ ์ •๋ ฌํ•œ๋‹ค. a_idx, b_max_idx๋ฅผ 0๋ถ€ํ„ฐ ์‹œ์ž‘ํ•ด์„œ A[a_idx] vs B[b_max_idx] ์ด๋ ‡๊ฒŒ ์ˆœ์ฐจ์ ์œผ๋กœ ๋Œ€๊ฒฐ์„ ํ•ด ๋‚˜๊ฐˆ๊ฑด๋ฐ, 1. A๊ฐ€ ์ด๊ธฐ๋Š” ๊ฒฝ์šฐ๋ผ๋ฉด, B์˜ ๊ฐ€์žฅ ์ž‘์€ ์›์†Œ๋ฅผ ๋‚ธ๋‹ค๊ณ  ์ƒ๊ฐ (์–ด์ฐจํ”ผ ์งˆ ๋ฐ”์— ์ œ์ผ ์ž‘์€ ๊ฑธ๋กœ ์ง€์ž!) 2. B๊ฐ€ ์ด๊ธฐ๋Š” ๊ฒฝ์šฐ๋ผ๋ฉด, B[b_max_idx]๋ฅผ ๋‚ธ๋‹ค๊ณ .. 2022. 3. 29.
[C++/ํ”„๋กœ๊ทธ๋ž˜๋จธ์Šค] ์ด์ค‘์šฐ์„ ์ˆœ์œ„ํ ๋ฌธ์ œ https://programmers.co.kr/learn/courses/30/lessons/42628 ์ฝ”๋”ฉํ…Œ์ŠคํŠธ ์—ฐ์Šต - ์ด์ค‘์šฐ์„ ์ˆœ์œ„ํ programmers.co.kr ์ด์ค‘ ์šฐ์„ ์ˆœ์œ„ ํ๋Š” ๋‹ค์Œ ์—ฐ์‚ฐ์„ ํ•  ์ˆ˜ ์žˆ๋Š” ์ž๋ฃŒ๊ตฌ์กฐ๋ฅผ ๋งํ•ฉ๋‹ˆ๋‹ค. ๋ช…๋ น์–ด ์„ค๋ช… I ์ˆซ์ž ํ์— ์ฃผ์–ด์ง„ ์ˆซ์ž๋ฅผ ์‚ฝ์ž…ํ•ฉ๋‹ˆ๋‹ค. D 1 ํ์—์„œ ์ตœ๋Œ“๊ฐ’์„ ์‚ญ์ œํ•ฉ๋‹ˆ๋‹ค. D -1 ํ์—์„œ ์ตœ์†Ÿ๊ฐ’์„ ์‚ญ์ œํ•ฉ๋‹ˆ๋‹ค. ์ด์ค‘ ์šฐ์„ ์ˆœ์œ„ ํ๊ฐ€ ํ•  ์—ฐ์‚ฐ operations๊ฐ€ ๋งค๊ฐœ๋ณ€์ˆ˜๋กœ ์ฃผ์–ด์งˆ ๋•Œ, ๋ชจ๋“  ์—ฐ์‚ฐ์„ ์ฒ˜๋ฆฌํ•œ ํ›„ ํ๊ฐ€ ๋น„์–ด์žˆ์œผ๋ฉด [0,0] ๋น„์–ด์žˆ์ง€ ์•Š์œผ๋ฉด [์ตœ๋Œ“๊ฐ’, ์ตœ์†Ÿ๊ฐ’]์„ return ํ•˜๋„๋ก solution ํ•จ์ˆ˜๋ฅผ ๊ตฌํ˜„ํ•ด์ฃผ์„ธ์š”. ์ œํ•œ์‚ฌํ•ญ operations๋Š” ๊ธธ์ด๊ฐ€ 1 ์ด์ƒ 1,000,000 ์ดํ•˜์ธ ๋ฌธ์ž์—ด ๋ฐฐ์—ด์ž…๋‹ˆ๋‹ค. operations์˜ ์›์†Œ๋Š” ํ๊ฐ€ ์ˆ˜.. 2022. 3. 1.
[go/ํ”„๋กœ๊ทธ๋ž˜๋จธ์Šค] ์„ฌ ์—ฐ๊ฒฐํ•˜๊ธฐ ๋ฌธ์ œ https://programmers.co.kr/learn/courses/30/lessons/42861?language=go ์ฝ”๋”ฉํ…Œ์ŠคํŠธ ์—ฐ์Šต - ์„ฌ ์—ฐ๊ฒฐํ•˜๊ธฐ 4 [[0,1,1],[0,2,2],[1,2,5],[1,3,1],[2,3,8]] 4 programmers.co.kr n๊ฐœ์˜ ์„ฌ ์‚ฌ์ด์— ๋‹ค๋ฆฌ๋ฅผ ๊ฑด์„คํ•˜๋Š” ๋น„์šฉ(costs)์ด ์ฃผ์–ด์งˆ ๋•Œ, ์ตœ์†Œ์˜ ๋น„์šฉ์œผ๋กœ ๋ชจ๋“  ์„ฌ์ด ์„œ๋กœ ํ†ตํ–‰ ๊ฐ€๋Šฅํ•˜๋„๋ก ๋งŒ๋“ค ๋•Œ ํ•„์š”ํ•œ ์ตœ์†Œ ๋น„์šฉ์„ return ํ•˜๋„๋ก solution์„ ์™„์„ฑํ•˜์„ธ์š”. ๋‹ค๋ฆฌ๋ฅผ ์—ฌ๋Ÿฌ ๋ฒˆ ๊ฑด๋„ˆ๋”๋ผ๋„, ๋„๋‹ฌํ•  ์ˆ˜๋งŒ ์žˆ์œผ๋ฉด ํ†ตํ–‰ ๊ฐ€๋Šฅํ•˜๋‹ค๊ณ  ๋ด…๋‹ˆ๋‹ค. ์˜ˆ๋ฅผ ๋“ค์–ด A ์„ฌ๊ณผ B ์„ฌ ์‚ฌ์ด์— ๋‹ค๋ฆฌ๊ฐ€ ์žˆ๊ณ , B ์„ฌ๊ณผ C ์„ฌ ์‚ฌ์ด์— ๋‹ค๋ฆฌ๊ฐ€ ์žˆ์œผ๋ฉด A ์„ฌ๊ณผ C ์„ฌ์€ ์„œ๋กœ ํ†ตํ–‰ ๊ฐ€๋Šฅํ•ฉ๋‹ˆ๋‹ค. ์ œํ•œ์‚ฌํ•ญ ์„ฌ์˜ ๊ฐœ์ˆ˜ n์€ 1 ์ด์ƒ 100 ์ด.. 2022. 2. 8.
[C++/ํ”„๋กœ๊ทธ๋ž˜๋จธ์Šค] ๊ฒฝ์ฃผ๋กœ ๊ฑด์„ค (2020 ์นด์นด์˜ค ์ธํ„ด์‹ญ) ๋ฌธ์ œ https://programmers.co.kr/learn/courses/30/lessons/67259 ์ฝ”๋”ฉํ…Œ์ŠคํŠธ ์—ฐ์Šต - ๊ฒฝ์ฃผ๋กœ ๊ฑด์„ค [[0,0,0,0,0,0,0,1],[0,0,0,0,0,0,0,0],[0,0,0,0,0,1,0,0],[0,0,0,0,1,0,0,0],[0,0,0,1,0,0,0,1],[0,0,1,0,0,0,1,0],[0,1,0,0,0,1,0,0],[1,0,0,0,0,0,0,0]] 3800 [[0,0,1,0],[0,0,0,0],[0,1,0,1],[1,0,0,0]] 2100 [[0,0,0,0,0,0],[0,1,1,1,1,0],[0,0,1,0,0,0],[1,0,0,1,0,1],[ programmers.co.kr ๋ฌธ์ œ๋ฅผ ์š”์•ฝํ•˜์ž๋ฉด, ์ •์‚ฌ๊ฐํ˜• ๋ชจ์–‘์˜ board์—์„œ (0, 0)์—์„œ (N-1, N-.. 2022. 1. 18.
[C++/ํ”„๋กœ๊ทธ๋ž˜๋จธ์Šค] ๋‹จ์–ด ๋ณ€ํ™˜ ๋ฌธ์ œ https://programmers.co.kr/learn/courses/30/lessons/43163 ๋‘ ๊ฐœ์˜ ๋‹จ์–ด begin, target๊ณผ ๋‹จ์–ด์˜ ์ง‘ํ•ฉ words๊ฐ€ ์žˆ์Šต๋‹ˆ๋‹ค. ์•„๋ž˜์™€ ๊ฐ™์€ ๊ทœ์น™์„ ์ด์šฉํ•˜์—ฌ begin์—์„œ target์œผ๋กœ ๋ณ€ํ™˜ํ•˜๋Š” ๊ฐ€์žฅ ์งง์€ ๋ณ€ํ™˜ ๊ณผ์ •์„ ์ฐพ์œผ๋ ค๊ณ  ํ•ฉ๋‹ˆ๋‹ค. 1. ํ•œ ๋ฒˆ์— ํ•œ ๊ฐœ์˜ ์•ŒํŒŒ๋ฒณ๋งŒ ๋ฐ”๊ฟ€ ์ˆ˜ ์žˆ์Šต๋‹ˆ๋‹ค. 2. words์— ์žˆ๋Š” ๋‹จ์–ด๋กœ๋งŒ ๋ณ€ํ™˜ํ•  ์ˆ˜ ์žˆ์Šต๋‹ˆ๋‹ค. ์˜ˆ๋ฅผ ๋“ค์–ด begin์ด "hit", target๊ฐ€ "cog", words๊ฐ€ ["hot","dot","dog","lot","log","cog"]๋ผ๋ฉด "hit" -> "hot" -> "dot" -> "dog" -> "cog"์™€ ๊ฐ™์ด 4๋‹จ๊ณ„๋ฅผ ๊ฑฐ์ณ ๋ณ€ํ™˜ํ•  ์ˆ˜ ์žˆ์Šต๋‹ˆ๋‹ค. ๋‘ ๊ฐœ์˜ ๋‹จ์–ด begin, target๊ณผ ๋‹จ์–ด์˜ .. 2022. 1. 12.
[ํ”„๋กœ๊ทธ๋ž˜๋จธ์Šค/C++] ํ‘œ ํŽธ์ง‘ ๋ฌธ์ œ https://programmers.co.kr/learn/courses/30/lessons/81303# ์ฝ”๋”ฉํ…Œ์ŠคํŠธ ์—ฐ์Šต - ํ‘œ ํŽธ์ง‘ 8 2 ["D 2","C","U 3","C","D 4","C","U 2","Z","Z"] "OOOOXOOO" 8 2 ["D 2","C","U 3","C","D 4","C","U 2","Z","Z","U 1","C"] "OOXOXOOO" programmers.co.kr ํ’€์ด boolํ˜•ํƒœ์˜ idxs๋ฐฐ์—ด์„ ๋งŒ๋“ค์–ด์„œ, ํ•ด๋‹น ํ–‰์ด ์‚ญ์ œ๋˜๋ฉด 0, ์กด์žฌํ•˜๋ฉด 1๋กœ ํŒ๋‹จํ•˜๋Š” ๋ฐฉ์‹์œผ๋กœ ๊ตฌํ˜„ํ•ด๋ณด์•˜๋‹ค. #include #include #include #include using namespace std; string solution(int n, int k, vector cmd) { stack.. 2021. 12. 8.
[ํ”„๋กœ๊ทธ๋ž˜๋จธ์Šค/C++] [1์ฐจ] ์…”ํ‹€๋ฒ„์Šค ๋ฌธ์ œ ๋ฌธ์ œ ๋งํฌ ์นด์นด์˜ค์—์„œ๋Š” ๋ฌด๋ฃŒ ์…”ํ‹€๋ฒ„์Šค๋ฅผ ์šดํ–‰ํ•˜๊ธฐ ๋•Œ๋ฌธ์— ํŒ๊ต์—ญ์—์„œ ํŽธํ•˜๊ฒŒ ์‚ฌ๋ฌด์‹ค๋กœ ์˜ฌ ์ˆ˜ ์žˆ๋‹ค. ์นด์นด์˜ค์˜ ์ง์›์€ ์„œ๋กœ๋ฅผ 'ํฌ๋ฃจ'๋ผ๊ณ  ๋ถ€๋ฅด๋Š”๋ฐ, ์•„์นจ๋งˆ๋‹ค ๋งŽ์€ ํฌ๋ฃจ๋“ค์ด ์ด ์…”ํ‹€์„ ์ด์šฉํ•˜์—ฌ ์ถœ๊ทผํ•œ๋‹ค. ์ด ๋ฌธ์ œ์—์„œ๋Š” ํŽธ์˜๋ฅผ ์œ„ํ•ด ์…”ํ‹€์€ ๋‹ค์Œ๊ณผ ๊ฐ™์€ ๊ทœ์น™์œผ๋กœ ์šดํ–‰ํ•œ๋‹ค๊ณ  ๊ฐ€์ •ํ•˜์ž. ์…”ํ‹€์€ 09:00๋ถ€ํ„ฐ ์ด nํšŒ t๋ถ„ ๊ฐ„๊ฒฉ์œผ๋กœ ์—ญ์— ๋„์ฐฉํ•˜๋ฉฐ, ํ•˜๋‚˜์˜ ์…”ํ‹€์—๋Š” ์ตœ๋Œ€ m๋ช…์˜ ์Šน๊ฐ์ด ํƒˆ ์ˆ˜ ์žˆ๋‹ค. ์…”ํ‹€์€ ๋„์ฐฉํ–ˆ์„ ๋•Œ ๋„์ฐฉํ•œ ์ˆœ๊ฐ„์— ๋Œ€๊ธฐ์—ด์— ์„  ํฌ๋ฃจ๊นŒ์ง€ ํฌํ•จํ•ด์„œ ๋Œ€๊ธฐ ์ˆœ์„œ๋Œ€๋กœ ํƒœ์šฐ๊ณ  ๋ฐ”๋กœ ์ถœ๋ฐœํ•œ๋‹ค. ์˜ˆ๋ฅผ ๋“ค์–ด 09:00์— ๋„์ฐฉํ•œ ์…”ํ‹€์€ ์ž๋ฆฌ๊ฐ€ ์žˆ๋‹ค๋ฉด 09:00์— ์ค„์„ ์„  ํฌ๋ฃจ๋„ ํƒˆ ์ˆ˜ ์žˆ๋‹ค. ์ผ์ฐ ๋‚˜์™€์„œ ์…”ํ‹€์„ ๊ธฐ๋‹ค๋ฆฌ๋Š” ๊ฒƒ์ด ๊ท€์ฐฎ์•˜๋˜ ์ฝ˜์€, ์ผ์ฃผ์ผ๊ฐ„์˜ ์ง‘์š”ํ•œ ๊ด€์ฐฐ ๋์— ์–ด๋–ค ํฌ๋ฃจ๊ฐ€ ๋ช‡ ์‹œ์— ์…”ํ‹€ ๋Œ€๊ธฐ์—ด์— ๋„์ฐฉํ•˜๋Š”์ง€ .. 2021. 12. 8.
[C++/ํ”„๋กœ๊ทธ๋ž˜๋จธ์Šค] ์ถ”์„ ํŠธ๋ž˜ํ”ฝ ๋ฌธ์ œ https://programmers.co.kr/learn/courses/30/lessons/17676 2021. 11. 17.
๋ฐ˜์‘ํ˜•