๋ฐ˜์‘ํ˜•

๐Ÿ“ฆ Chango/๐Ÿฃ EDOC 36

[์‹œ๊ฐ„][BOJ][C++] ๋ฐฑ์ค€ 20044๋ฒˆ: Project Teams

https://www.acmicpc.net/problem/20044 20044๋ฒˆ: Project Teams ์ž…๋ ฅ์€ ํ‘œ์ค€์ž…๋ ฅ์„ ์‚ฌ์šฉํ•œ๋‹ค. ์ž…๋ ฅ์˜ ์ฒซ ๋ฒˆ์งธ ํ–‰์—๋Š” ํŒ€ ์ˆ˜๋ฅผ ๋‚˜ํƒ€๋‚ด๋Š” ์–‘์˜ ์ •์ˆ˜ n(1 ≤ n ≤ 5,000)์ด ์ฃผ์–ด์ง„๋‹ค. ๊ทธ ๋‹ค์Œ ํ–‰์— ํ•™์ƒ si ์˜ ์ฝ”๋”ฉ ์—ญ๋Ÿ‰ w(si)๋ฅผ ๋‚˜ํƒ€๋‚ด๋Š” 2n๊ฐœ์˜ ์–‘์˜ ์ •์ˆ˜๊ฐ€ ๊ณต๋ฐฑ์œผ๋กœ www.acmicpc.net ๋ฌธ์ œ ์ฝ”๋”ฉ ํ”„๋กœ์ ํŠธ ์ˆ˜์—…์„ ๊ฐ€๋ฅด์น˜๋Š” ์ˆ˜์ฐฌ์ด๋Š” ํ”„๋กœ์ ํŠธ ํŒ€์„ ๊ฐ€๋Šฅํ•˜๋ฉด ๊ณต์ •ํ•˜๊ฒŒ ๊ตฌ์„ฑํ•˜๋ ค๊ณ  ํ•œ๋‹ค. ํ”„๋กœ์ ํŠธ ํŒ€ ํ•˜๋‚˜๋Š” ๋‘ ๋ช…์˜ ํ•™์ƒ์œผ๋กœ ๊ตฌ์„ฑ๋˜๋Š”๋ฐ, ๊ฐ ํ•™์ƒ๋“ค์˜ ์ฝ”๋”ฉ ์—ญ๋Ÿ‰์€ ๋ชจ๋‘ ๋‹ค๋ฅด๋‹ค. ๊ฐ ํ•™์ƒ์€ ํ•œ ํŒ€์˜ ํŒ€์›์ด์–ด์•ผ ํ•œ๋‹ค. ๊ณต์ •์„ฑ์„ ๋†’์ด๊ธฐ ์œ„ํ•ด ์ˆ˜์ฐฌ์ด๋Š” ํŒ€์› ์ฝ”๋”ฉ ์—ญ๋Ÿ‰์˜ ํ•ฉ์„ ์ตœ๋Œ€ํ•œ ์ผ์ •ํ•˜๊ฒŒ ์œ ์ง€ํ•˜๋ ค๊ณ  ํ•œ๋‹ค. ํ•™์ƒ๋“ค์ด ์ฝ”๋”ฉ ์—ญ๋Ÿ‰์ด ์ฃผ์–ด์กŒ์„ ๋•Œ ์ˆ˜์ฐฌ์ด๊ฐ€ ํŒ€์„ ๊ตฌ์„ฑ..

[๊ตฌ๋ฆ„][C++] 14ํšŒ E-PPER 7๋ฒˆ : ์‹ ๋ฌธ๊ธฐ์‚ฌ

https://level.goorm.io/exam/123421/14%ED%9A%8C-epper-7-%EC%8B%A0%EB%AC%B8-%EA%B8%B0%EC%82%AC/quiz/1 ๊ตฌ๋ฆ„LEVEL ์ฝ”๋”ฉํ…Œ์ŠคํŠธ์—์„œ ๊ฐ€์žฅ ๋†’์€ ๋น„์ค‘์„ ์ฐจ์ง€ํ•˜๋Š” ์•Œ๊ณ ๋ฆฌ์ฆ˜ ๋ฌธ์ œ๋ฅผ ์ œ์ž‘ํ•˜๊ณ  ํ’€์ดํ•  ์ˆ˜ ์žˆ๋Š” ์˜จ๋ผ์ธ ์ €์ง€ ์„œ๋น„์Šค์ž…๋‹ˆ๋‹ค. ๊ธฐ์—…์—์„œ ์„ ํ˜ธํ•˜๋Š” C, C++, ํŒŒ์ด์ฌ(Python), ์ž๋ฐ”(Java), ์ž๋ฐ”์Šคํฌ๋ฆฝํŠธ(Javascript) ์ด level.goorm.io #include #include int main() { int r, c, zr, zc; scanf("%d %d %d %d", &r, &c, &zr, &zc); char answer[r*zr][c*zc]; char words[r][c]; for(int i=0; i

[๊ตฌ๋ฆ„][C++] 10ํšŒ E-PPER 2๋ฒˆ : OX ํ€ด์ฆˆ

https://level.goorm.io/exam/123589/10%ED%9A%8C-e-pper-ox-%ED%80%B4%EC%A6%88/quiz/1 ๊ตฌ๋ฆ„LEVEL ์ฝ”๋”ฉํ…Œ์ŠคํŠธ์—์„œ ๊ฐ€์žฅ ๋†’์€ ๋น„์ค‘์„ ์ฐจ์ง€ํ•˜๋Š” ์•Œ๊ณ ๋ฆฌ์ฆ˜ ๋ฌธ์ œ๋ฅผ ์ œ์ž‘ํ•˜๊ณ  ํ’€์ดํ•  ์ˆ˜ ์žˆ๋Š” ์˜จ๋ผ์ธ ์ €์ง€ ์„œ๋น„์Šค์ž…๋‹ˆ๋‹ค. ๊ธฐ์—…์—์„œ ์„ ํ˜ธํ•˜๋Š” C, C++, ํŒŒ์ด์ฌ(Python), ์ž๋ฐ”(Java), ์ž๋ฐ”์Šคํฌ๋ฆฝํŠธ(Javascript) ์ด level.goorm.io #include #include using namespace std; int main() { char input[100]; cin >> input; int ans = 0; int tmp = 1; for(int i = 0; ; i++){ if(input[i] == 'O'){ ans += tmp; tmp+..

[BOJ G5][C++] ๋ฐฑ์ค€ 14891๋ฒˆ: ํ†ฑ๋‹ˆ๋ฐ”ํ€ด

https://www.acmicpc.net/problem/14891 14891๋ฒˆ: ํ†ฑ๋‹ˆ๋ฐ”ํ€ด ์ด 8๊ฐœ์˜ ํ†ฑ๋‹ˆ๋ฅผ ๊ฐ€์ง€๊ณ  ์žˆ๋Š” ํ†ฑ๋‹ˆ๋ฐ”ํ€ด 4๊ฐœ๊ฐ€ ์•„๋ž˜ ๊ทธ๋ฆผ๊ณผ ๊ฐ™์ด ์ผ๋ ฌ๋กœ ๋†“์—ฌ์ ธ ์žˆ๋‹ค. ๋˜, ํ†ฑ๋‹ˆ๋Š” N๊ทน ๋˜๋Š” S๊ทน ์ค‘ ํ•˜๋‚˜๋ฅผ ๋‚˜ํƒ€๋‚ด๊ณ  ์žˆ๋‹ค. ํ†ฑ๋‹ˆ๋ฐ”ํ€ด์—๋Š” ๋ฒˆํ˜ธ๊ฐ€ ๋งค๊ฒจ์ ธ ์žˆ๋Š”๋ฐ, ๊ฐ€์žฅ ์™ผ์ชฝ ํ†ฑ๋‹ˆ๋ฐ”ํ€ด www.acmicpc.net ๋ฌธ์ œ ์ด 8๊ฐœ์˜ ํ†ฑ๋‹ˆ๋ฅผ ๊ฐ€์ง€๊ณ  ์žˆ๋Š” ํ†ฑ๋‹ˆ๋ฐ”ํ€ด 4๊ฐœ๊ฐ€ ์•„๋ž˜ ๊ทธ๋ฆผ๊ณผ ๊ฐ™์ด ์ผ๋ ฌ๋กœ ๋†“์—ฌ์ ธ ์žˆ๋‹ค. ๋˜, ํ†ฑ๋‹ˆ๋Š” N๊ทน ๋˜๋Š” S๊ทน ์ค‘ ํ•˜๋‚˜๋ฅผ ๋‚˜ํƒ€๋‚ด๊ณ  ์žˆ๋‹ค. ํ†ฑ๋‹ˆ๋ฐ”ํ€ด์—๋Š” ๋ฒˆํ˜ธ๊ฐ€ ๋งค๊ฒจ์ ธ ์žˆ๋Š”๋ฐ, ๊ฐ€์žฅ ์™ผ์ชฝ ํ†ฑ๋‹ˆ๋ฐ”ํ€ด๊ฐ€ 1๋ฒˆ, ๊ทธ ์˜ค๋ฅธ์ชฝ์€ 2๋ฒˆ, ๊ทธ ์˜ค๋ฅธ์ชฝ์€ 3๋ฒˆ, ๊ฐ€์žฅ ์˜ค๋ฅธ์ชฝ ํ†ฑ๋‹ˆ๋ฐ”ํ€ด๋Š” 4๋ฒˆ์ด๋‹ค. ์ด๋•Œ, ํ†ฑ๋‹ˆ๋ฐ”ํ€ด๋ฅผ ์ด K๋ฒˆ ํšŒ์ „์‹œํ‚ค๋ ค๊ณ  ํ•œ๋‹ค. ํ†ฑ๋‹ˆ๋ฐ”ํ€ด์˜ ํšŒ์ „์€ ํ•œ ์นธ์„ ๊ธฐ์ค€์œผ๋กœ ํ•œ๋‹ค. ํšŒ์ „์€ ์‹œ๊ณ„ ๋ฐฉํ–ฅ๊ณผ ๋ฐ˜..

[BOJ][C++] ๋ฐฑ์ค€ 1074๋ฒˆ: Z

https://www.acmicpc.net/problem/1074 1074๋ฒˆ: Z ํ•œ์ˆ˜๋Š” ํฌ๊ธฐ๊ฐ€ 2N × 2N์ธ 2์ฐจ์› ๋ฐฐ์—ด์„ Z๋ชจ์–‘์œผ๋กœ ํƒ์ƒ‰ํ•˜๋ ค๊ณ  ํ•œ๋‹ค. ์˜ˆ๋ฅผ ๋“ค์–ด, 2×2๋ฐฐ์—ด์„ ์™ผ์ชฝ ์œ„์นธ, ์˜ค๋ฅธ์ชฝ ์œ„์นธ, ์™ผ์ชฝ ์•„๋ž˜์นธ, ์˜ค๋ฅธ์ชฝ ์•„๋ž˜์นธ ์ˆœ์„œ๋Œ€๋กœ ๋ฐฉ๋ฌธํ•˜๋ฉด Z๋ชจ์–‘์ด๋‹ค. N > 1์ธ ๊ฒฝ์šฐ, ๋ฐฐ์—ด์„ www.acmicpc.net ๋ฌธ์ œ ํ•œ์ˆ˜๋Š” ํฌ๊ธฐ๊ฐ€ 2N × 2N์ธ 2์ฐจ์› ๋ฐฐ์—ด์„ Z๋ชจ์–‘์œผ๋กœ ํƒ์ƒ‰ํ•˜๋ ค๊ณ  ํ•œ๋‹ค. ์˜ˆ๋ฅผ ๋“ค์–ด, 2×2๋ฐฐ์—ด์„ ์™ผ์ชฝ ์œ„์นธ, ์˜ค๋ฅธ์ชฝ ์œ„์นธ, ์™ผ์ชฝ ์•„๋ž˜์นธ, ์˜ค๋ฅธ์ชฝ ์•„๋ž˜์นธ ์ˆœ์„œ๋Œ€๋กœ ๋ฐฉ๋ฌธํ•˜๋ฉด Z๋ชจ์–‘์ด๋‹ค. N > 1์ธ ๊ฒฝ์šฐ, ๋ฐฐ์—ด์„ ํฌ๊ธฐ๊ฐ€ 2N-1 × 2N-1๋กœ 4๋“ฑ๋ถ„ ํ•œ ํ›„์— ์žฌ๊ท€์ ์œผ๋กœ ์ˆœ์„œ๋Œ€๋กœ ๋ฐฉ๋ฌธํ•œ๋‹ค. ๋‹ค์Œ ์˜ˆ๋Š” 22 × 22 ํฌ๊ธฐ์˜ ๋ฐฐ์—ด์„ ๋ฐฉ๋ฌธํ•œ ์ˆœ์„œ์ด๋‹ค. N์ด ์ฃผ์–ด์กŒ์„ ๋•Œ, rํ–‰ c์—ด์„ ๋ช‡ ๋ฒˆ์งธ..

[BOJ][C++] ๋ฐฑ์ค€ 13305๋ฒˆ: ์ฃผ์œ ์†Œ

https://www.acmicpc.net/problem/13305 13305๋ฒˆ: ์ฃผ์œ ์†Œ ํ‘œ์ค€ ์ž…๋ ฅ์œผ๋กœ ๋‹ค์Œ ์ •๋ณด๊ฐ€ ์ฃผ์–ด์ง„๋‹ค. ์ฒซ ๋ฒˆ์งธ ์ค„์—๋Š” ๋„์‹œ์˜ ๊ฐœ์ˆ˜๋ฅผ ๋‚˜ํƒ€๋‚ด๋Š” ์ •์ˆ˜ N(2 ≤ N ≤ 100,000)์ด ์ฃผ์–ด์ง„๋‹ค. ๋‹ค์Œ ์ค„์—๋Š” ์ธ์ ‘ํ•œ ๋‘ ๋„์‹œ๋ฅผ ์—ฐ๊ฒฐํ•˜๋Š” ๋„๋กœ์˜ ๊ธธ์ด๊ฐ€ ์ œ์ผ ์™ผ์ชฝ ๋„๋กœ๋ถ€ํ„ฐ N-1 www.acmicpc.net ๋ฌธ์ œ ์–ด๋–ค ๋‚˜๋ผ์— N๊ฐœ์˜ ๋„์‹œ๊ฐ€ ์žˆ๋‹ค. ์ด ๋„์‹œ๋“ค์€ ์ผ์ง์„  ๋„๋กœ ์œ„์— ์žˆ๋‹ค. ํŽธ์˜์ƒ ์ผ์ง์„ ์„ ์ˆ˜ํ‰ ๋ฐฉํ–ฅ์œผ๋กœ ๋‘์ž. ์ œ์ผ ์™ผ์ชฝ์˜ ๋„์‹œ์—์„œ ์ œ์ผ ์˜ค๋ฅธ์ชฝ์˜ ๋„์‹œ๋กœ ์ž๋™์ฐจ๋ฅผ ์ด์šฉํ•˜์—ฌ ์ด๋™ํ•˜๋ ค๊ณ  ํ•œ๋‹ค. ์ธ์ ‘ํ•œ ๋‘ ๋„์‹œ ์‚ฌ์ด์˜ ๋„๋กœ๋“ค์€ ์„œ๋กœ ๊ธธ์ด๊ฐ€ ๋‹ค๋ฅผ ์ˆ˜ ์žˆ๋‹ค. ๋„๋กœ ๊ธธ์ด์˜ ๋‹จ์œ„๋Š” km๋ฅผ ์‚ฌ์šฉํ•œ๋‹ค. ์ฒ˜์Œ ์ถœ๋ฐœํ•  ๋•Œ ์ž๋™์ฐจ์—๋Š” ๊ธฐ๋ฆ„์ด ์—†์–ด์„œ ์ฃผ์œ ์†Œ์—์„œ ๊ธฐ๋ฆ„์„ ๋„ฃ๊ณ  ์ถœ๋ฐœํ•˜์—ฌ์•ผ ํ•œ๋‹ค. ๊ธฐ๋ฆ„ํ†ต์˜ ํฌ..

[BOJ][C++] 13458๋ฒˆ: ์‹œํ—˜ ๊ฐ๋…

https://www.acmicpc.net/problem/13458 13458๋ฒˆ: ์‹œํ—˜ ๊ฐ๋… ์ฒซ์งธ ์ค„์— ์‹œํ—˜์žฅ์˜ ๊ฐœ์ˆ˜ N(1 ≤ N ≤ 1,000,000)์ด ์ฃผ์–ด์ง„๋‹ค. ๋‘˜์งธ ์ค„์—๋Š” ๊ฐ ์‹œํ—˜์žฅ์— ์žˆ๋Š” ์‘์‹œ์ž์˜ ์ˆ˜ Ai (1 ≤ Ai ≤ 1,000,000)๊ฐ€ ์ฃผ์–ด์ง„๋‹ค. ์…‹์งธ ์ค„์—๋Š” B์™€ C๊ฐ€ ์ฃผ์–ด์ง„๋‹ค. (1 ≤ B, C ≤ 1,000,000) www.acmicpc.net ๋ฌธ์ œ ์ด N๊ฐœ์˜ ์‹œํ—˜์žฅ์ด ์žˆ๊ณ , ๊ฐ๊ฐ์˜ ์‹œํ—˜์žฅ๋งˆ๋‹ค ์‘์‹œ์ž๋“ค์ด ์žˆ๋‹ค. i๋ฒˆ ์‹œํ—˜์žฅ์— ์žˆ๋Š” ์‘์‹œ์ž์˜ ์ˆ˜๋Š” Ai๋ช…์ด๋‹ค. ๊ฐ๋…๊ด€์€ ์ด๊ฐ๋…๊ด€๊ณผ ๋ถ€๊ฐ๋…๊ด€์œผ๋กœ ๋‘ ์ข…๋ฅ˜๊ฐ€ ์žˆ๋‹ค. ์ด๊ฐ๋…๊ด€์€ ํ•œ ์‹œํ—˜์žฅ์—์„œ ๊ฐ์‹œํ•  ์ˆ˜ ์žˆ๋Š” ์‘์‹œ์ž์˜ ์ˆ˜๊ฐ€ B๋ช…์ด๊ณ , ๋ถ€๊ฐ๋…๊ด€์€ ํ•œ ์‹œํ—˜์žฅ์—์„œ ๊ฐ์‹œํ•  ์ˆ˜ ์žˆ๋Š” ์‘์‹œ์ž์˜ ์ˆ˜๊ฐ€ C๋ช…์ด๋‹ค. ๊ฐ๊ฐ์˜ ์‹œํ—˜์žฅ์— ์ด๊ฐ๋…๊ด€์€ ์˜ค์ง 1๋ช…๋งŒ ์žˆ์–ด์•ผ..

[BOJ][C++] ๋ฐฑ์ค€ 1259๋ฒˆ: ํŒฐ๋ฆฐ๋“œ๋กฌ์ˆ˜

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