[๋ฐฑ์ค€] 1012. ์œ ๊ธฐ๋† ๋ฐฐ์ถ”/Python - Silver 2
ยท
Coding Test/Algorithms
โ“๋ฌธ์ œhttps://www.acmicpc.net/problem/1012์„ฑ๋Šฅ ์š”์•ฝ๋ฉ”๋ชจ๋ฆฌ: 114308 KB, ์‹œ๊ฐ„: 132 ms๋ถ„๋ฅ˜๊ทธ๋ž˜ํ”„ ์ด๋ก , ๊ทธ๋ž˜ํ”„ ํƒ์ƒ‰, ๋„ˆ๋น„ ์šฐ์„  ํƒ์ƒ‰, ๊นŠ์ด ์šฐ์„  ํƒ์ƒ‰ ๋ฌธ์ œ ์„ค๋ช…์ฐจ์„ธ๋Œ€ ์˜๋†์ธ ํ•œ๋‚˜๋Š” ๊ฐ•์›๋„ ๊ณ ๋žญ์ง€์—์„œ ์œ ๊ธฐ๋† ๋ฐฐ์ถ”๋ฅผ ์žฌ๋ฐฐํ•˜๊ธฐ๋กœ ํ•˜์˜€๋‹ค. ๋†์•ฝ์„ ์“ฐ์ง€ ์•Š๊ณ  ๋ฐฐ์ถ”๋ฅผ ์žฌ๋ฐฐํ•˜๋ ค๋ฉด ๋ฐฐ์ถ”๋ฅผ ํ•ด์ถฉ์œผ๋กœ๋ถ€ํ„ฐ ๋ณดํ˜ธํ•˜๋Š” ๊ฒƒ์ด ์ค‘์š”ํ•˜๊ธฐ ๋•Œ๋ฌธ์—, ํ•œ๋‚˜๋Š” ํ•ด์ถฉ ๋ฐฉ์ง€์— ํšจ๊ณผ์ ์ธ ๋ฐฐ์ถ”ํฐ์ง€๋ ์ด๋ฅผ ๊ตฌ์ž…ํ•˜๊ธฐ๋กœ ๊ฒฐ์‹ฌํ•œ๋‹ค. ์ด ์ง€๋ ์ด๋Š” ๋ฐฐ์ถ”๊ทผ์ฒ˜์— ์„œ์‹ํ•˜๋ฉฐ ํ•ด์ถฉ์„ ์žก์•„ ๋จน์Œ์œผ๋กœ์จ ๋ฐฐ์ถ”๋ฅผ ๋ณดํ˜ธํ•œ๋‹ค. ํŠนํžˆ, ์–ด๋–ค ๋ฐฐ์ถ”์— ๋ฐฐ์ถ”ํฐ์ง€๋ ์ด๊ฐ€ ํ•œ ๋งˆ๋ฆฌ๋ผ๋„ ์‚ด๊ณ  ์žˆ์œผ๋ฉด ์ด ์ง€๋ ์ด๋Š” ์ธ์ ‘ํ•œ ๋‹ค๋ฅธ ๋ฐฐ์ถ”๋กœ ์ด๋™ํ•  ์ˆ˜ ์žˆ์–ด, ๊ทธ ๋ฐฐ์ถ”๋“ค ์—ญ์‹œ ํ•ด์ถฉ์œผ๋กœ๋ถ€ํ„ฐ ๋ณดํ˜ธ๋ฐ›์„ ์ˆ˜ ์žˆ๋‹ค. ํ•œ ๋ฐฐ์ถ”์˜ ์ƒํ•˜์ขŒ์šฐ ๋„ค ๋ฐฉํ–ฅ์— ๋‹ค๋ฅธ ๋ฐฐ์ถ”๊ฐ€ ์œ„์น˜ํ•œ ๊ฒฝ์šฐ์—..
[๋ฐฑ์ค€] 2667. ๋‹จ์ง€๋ฒˆํ˜ธ๋ถ™์ด๊ธฐ/Python - Silver 1
ยท
Coding Test/Algorithms
โ“๋ฌธ์ œhttps://www.acmicpc.net/problem/2667์„ฑ๋Šฅ ์š”์•ฝ๋ฉ”๋ชจ๋ฆฌ: 108548 KB, ์‹œ๊ฐ„: 92 ms๋ถ„๋ฅ˜๋„ˆ๋น„ ์šฐ์„  ํƒ์ƒ‰, ๊นŠ์ด ์šฐ์„  ํƒ์ƒ‰, ๊ทธ๋ž˜ํ”„ ์ด๋ก , ๊ทธ๋ž˜ํ”„ ํƒ์ƒ‰ ๋ฌธ์ œ ์„ค๋ช…๊ณผ ๊ฐ™์ด ์ •์‚ฌ๊ฐํ˜• ๋ชจ์–‘์˜ ์ง€๋„๊ฐ€ ์žˆ๋‹ค. 1์€ ์ง‘์ด ์žˆ๋Š” ๊ณณ์„, 0์€ ์ง‘์ด ์—†๋Š” ๊ณณ์„ ๋‚˜ํƒ€๋‚ธ๋‹ค. ์ฒ ์ˆ˜๋Š” ์ด ์ง€๋„๋ฅผ ๊ฐ€์ง€๊ณ  ์—ฐ๊ฒฐ๋œ ์ง‘์˜ ๋ชจ์ž„์ธ ๋‹จ์ง€๋ฅผ ์ •์˜ํ•˜๊ณ , ๋‹จ์ง€์— ๋ฒˆํ˜ธ๋ฅผ ๋ถ™์ด๋ ค ํ•œ๋‹ค. ์—ฌ๊ธฐ์„œ ์—ฐ๊ฒฐ๋˜์—ˆ๋‹ค๋Š” ๊ฒƒ์€ ์–ด๋–ค ์ง‘์ด ์ขŒ์šฐ, ํ˜น์€ ์•„๋ž˜์œ„๋กœ ๋‹ค๋ฅธ ์ง‘์ด ์žˆ๋Š” ๊ฒฝ์šฐ๋ฅผ ๋งํ•œ๋‹ค. ๋Œ€๊ฐ์„ ์ƒ์— ์ง‘์ด ์žˆ๋Š” ๊ฒฝ์šฐ๋Š” ์—ฐ๊ฒฐ๋œ ๊ฒƒ์ด ์•„๋‹ˆ๋‹ค. ๋Š” ์„ ๋‹จ์ง€๋ณ„๋กœ ๋ฒˆํ˜ธ๋ฅผ ๋ถ™์ธ ๊ฒƒ์ด๋‹ค. ์ง€๋„๋ฅผ ์ž…๋ ฅํ•˜์—ฌ ๋‹จ์ง€์ˆ˜๋ฅผ ์ถœ๋ ฅํ•˜๊ณ , ๊ฐ ๋‹จ์ง€์— ์†ํ•˜๋Š” ์ง‘์˜ ์ˆ˜๋ฅผ ์˜ค๋ฆ„์ฐจ์ˆœ์œผ๋กœ ์ •๋ ฌํ•˜์—ฌ ์ถœ๋ ฅํ•˜๋Š” ํ”„๋กœ๊ทธ๋žจ์„ ์ž‘์„ฑํ•˜์‹œ์˜ค.โœ๐Ÿปํ’€์ด๊ฐ ๋‹จ์ง€์— ์†ํ•˜๋Š” ์ง‘์˜ ์ˆ˜..
[๋ฐฑ์ค€] 24480. ์•Œ๊ณ ๋ฆฌ์ฆ˜ ์ˆ˜์—… - ๊นŠ์ด ์šฐ์„  ํƒ์ƒ‰ 2/Python - Silver 2
ยท
Coding Test/Algorithms
โ“๋ฌธ์ œhttps://www.acmicpc.net/problem/24480์„ฑ๋Šฅ ์š”์•ฝ๋ฉ”๋ชจ๋ฆฌ: 70312 KB, ์‹œ๊ฐ„: 540 ms๋ถ„๋ฅ˜๊นŠ์ด ์šฐ์„  ํƒ์ƒ‰, ๊ทธ๋ž˜ํ”„ ์ด๋ก , ๊ทธ๋ž˜ํ”„ ํƒ์ƒ‰, ์ •๋ ฌ๋ฌธ์ œ ์„ค๋ช…์˜ค๋Š˜๋„ ์„œ์ค€์ด๋Š” ๊นŠ์ด ์šฐ์„  ํƒ์ƒ‰(DFS) ์ˆ˜์—… ์กฐ๊ต๋ฅผ ํ•˜๊ณ  ์žˆ๋‹ค. ์•„๋น ๊ฐ€ ์ˆ˜์—…ํ•œ ๋‚ด์šฉ์„ ํ•™์ƒ๋“ค์ด ์ž˜ ์ดํ•ดํ–ˆ๋Š”์ง€ ๋ฌธ์ œ๋ฅผ ํ†ตํ•ด์„œ ํ™•์ธํ•ด๋ณด์ž.N๊ฐœ์˜ ์ •์ ๊ณผ M๊ฐœ์˜ ๊ฐ„์„ ์œผ๋กœ ๊ตฌ์„ฑ๋œ ๋ฌด๋ฐฉํ–ฅ ๊ทธ๋ž˜ํ”„(undirected graph)๊ฐ€ ์ฃผ์–ด์ง„๋‹ค. ์ •์  ๋ฒˆํ˜ธ๋Š” 1๋ฒˆ๋ถ€ํ„ฐ N๋ฒˆ์ด๊ณ  ๋ชจ๋“  ๊ฐ„์„ ์˜ ๊ฐ€์ค‘์น˜๋Š” 1์ด๋‹ค. ์ •์  R์—์„œ ์‹œ์ž‘ํ•˜์—ฌ ๊นŠ์ด ์šฐ์„  ํƒ์ƒ‰์œผ๋กœ ๋…ธ๋“œ๋ฅผ ๋ฐฉ๋ฌธํ•  ๊ฒฝ์šฐ ๋…ธ๋“œ์˜ ๋ฐฉ๋ฌธ ์ˆœ์„œ๋ฅผ ์ถœ๋ ฅํ•˜์ž.๊นŠ์ด ์šฐ์„  ํƒ์ƒ‰ ์˜์‚ฌ ์ฝ”๋“œ๋Š” ๋‹ค์Œ๊ณผ ๊ฐ™๋‹ค. ์ธ์ ‘ ์ •์ ์€ ๋‚ด๋ฆผ์ฐจ์ˆœ์œผ๋กœ ๋ฐฉ๋ฌธํ•œ๋‹ค.dfs(V, E, R) { # V : ์ •์  ์ง‘ํ•ฉ, E : ๊ฐ„์„  ..
[SWEA] 5215.ํ–„๋ฒ„๊ฑฐ ๋‹ค์ด์–ดํŠธ/Python - D3
ยท
Coding Test/Algorithms
โ“๋ฌธ์ œhttps://swexpertacademy.com/main/code/problem/problemDetail.do?contestProbId=AWT-lPB6dHUDFAVT SW Expert AcademySW ํ”„๋กœ๊ทธ๋ž˜๋ฐ ์—ญ๋Ÿ‰ ๊ฐ•ํ™”์— ๋„์›€์ด ๋˜๋Š” ๋‹ค์–‘ํ•œ ํ•™์Šต ์ปจํ…์ธ ๋ฅผ ํ™•์ธํ•˜์„ธ์š”!swexpertacademy.com์„ฑ๋Šฅ ์š”์•ฝ๋ฉ”๋ชจ๋ฆฌ: 57,264 KB, ์‹œ๊ฐ„: 590 ms, ์ฝ”๋“œ๊ธธ์ด: 441 Bytesโœ๐Ÿปํ’€์ด์ •ํ•ด์ง„ ์นผ๋กœ๋ฆฌ๋ฅผ ๋„˜๊ธฐ์ง€ ์•Š์œผ๋ฉด์„œ ๊ฐ€์žฅ ์ ์ˆ˜๊ฐ€ ๋†’์€ ํ–„๋ฒ„๊ฑฐ๋ฅผ ์ฐพ๋Š” ๋ฌธ์ œ์ด๋‹ค.์ •ํ•ด์ง„ ์นผ๋กœ๋ฆฌ๊ฐ€ 1000์ผ ๋•Œ, ์ฃผ์–ด์ง„ ์žฌ๋ฃŒ๋“ค๋กœ 1000์„ ๋„˜๊ธฐ์ง€ ์•Š์œผ๋ฉด์„œ ๊ฐ€์žฅ ์ ์ˆ˜๊ฐ€ ๋†’์€ ํ–„๋ฒ„๊ฑฐ๋ฅผ ๋งŒ๋“ค์–ด์•ผ ํ•œ๋‹ค.์ฃผ์–ด์ง„ ์žฌ๋ฃŒ๋“ค์˜ ์ ์ˆ˜์™€ ์นผ๋กœ๋ฆฌ๊ฐ€ ๊ฐ๊ฐ (100, 200), (300, 500), (250, 300), (500, 10..