๋ณธ๋ฌธ ๋ฐ”๋กœ๊ฐ€๊ธฐ

๐ŸŽฏPS - Baekjoon, etc/DFS2

๐Ÿฅˆ[๋ฐฑ์ค€, 1260] DFS์™€ BFS (Java) ๋ฌธ์ œ ๋งํฌ https://www.acmicpc.net/problem/1260 1260๋ฒˆ: DFS์™€ BFS ์ฒซ์งธ ์ค„์— ์ •์ ์˜ ๊ฐœ์ˆ˜ N(1 ≤ N ≤ 1,000), ๊ฐ„์„ ์˜ ๊ฐœ์ˆ˜ M(1 ≤ M ≤ 10,000), ํƒ์ƒ‰์„ ์‹œ์ž‘ํ•  ์ •์ ์˜ ๋ฒˆํ˜ธ V๊ฐ€ ์ฃผ์–ด์ง„๋‹ค. ๋‹ค์Œ M๊ฐœ์˜ ์ค„์—๋Š” ๊ฐ„์„ ์ด ์—ฐ๊ฒฐํ•˜๋Š” ๋‘ ์ •์ ์˜ ๋ฒˆํ˜ธ๊ฐ€ ์ฃผ์–ด์ง„๋‹ค. ์–ด๋–ค ๋‘ ์ •์  ์‚ฌ www.acmicpc.net ๋‚œ์ด๋„ ์‹œ๊ฐ„์ œํ•œ 2์ดˆ ๋ฌธ์ œ ๊ทธ๋ž˜ํ”„๋ฅผ DFS๋กœ ํƒ์ƒ‰ํ•œ ๊ฒฐ๊ณผ์™€ BFS๋กœ ํƒ์ƒ‰ํ•œ ๊ฒฐ๊ณผ๋ฅผ ์ถœ๋ ฅํ•˜๋Š” ํ”„๋กœ๊ทธ๋žจ์„ ์ž‘์„ฑํ•˜์‹œ์˜ค. ๋‹จ, ๋ฐฉ๋ฌธํ•  ์ˆ˜ ์žˆ๋Š” ์ •์ ์ด ์—ฌ๋Ÿฌ ๊ฐœ์ธ ๊ฒฝ์šฐ์—๋Š” ์ •์  ๋ฒˆํ˜ธ๊ฐ€ ์ž‘์€ ๊ฒƒ์„ ๋จผ์ € ๋ฐฉ๋ฌธํ•˜๊ณ , ๋” ์ด์ƒ ๋ฐฉ๋ฌธํ•  ์ˆ˜ ์žˆ๋Š” ์ ์ด ์—†๋Š” ๊ฒฝ์šฐ ์ข…๋ฃŒํ•œ๋‹ค. ์ •์  ๋ฒˆํ˜ธ๋Š” 1๋ฒˆ๋ถ€ํ„ฐ N๋ฒˆ๊นŒ์ง€์ด๋‹ค. ์ž…๋ ฅ ์ฒซ์งธ ์ค„์— ์ •์ ์˜ ๊ฐœ์ˆ˜ N(1 ≤ N ≤ 1,000), .. 2023. 4. 18.
[์ด๊ฒƒ์ด ์ฝ”๋”ฉ ํ…Œ์ŠคํŠธ๋‹ค] ์Œ๋ฃŒ์ˆ˜ ์–ผ๋ ค ๋จน๊ธฐ ์‹œ๊ฐ„์ œํ•œ 1์ดˆ ๋ฌธ์ œ N x M ํฌ๊ธฐ์˜ ์–ผ์Œ ํ‹€์ด ์žˆ๋‹ค. ๊ตฌ๋ฉ์ด ๋šซ๋ ค ์žˆ๋Š” ๋ถ€๋ถ„์€ 0, ์นธ๋ง‰์ด๊ฐ€ ์กด์žฌํ•˜๋Š” ๋ถ€๋ถ„์€ 1๋กœ ํ‘œ์‹œ๋œ๋‹ค. ๊ตฌ๋ฉ์ด ๋šซ๋ ค ์žˆ๋Š” ๋ถ€๋ถ„๋ผ๋ฆฌ ์ƒ, ํ•˜, ์ขŒ, ์šฐ๋กœ ๋ถ™์–ด ์žˆ๋Š” ๊ฒฝ์šฐ ์„œ๋กœ ์—ฐ๊ฒฐ๋˜์–ด ์žˆ๋Š” ๊ฒƒ์œผ๋กœ ๊ฐ„์ฃผํ•œ๋‹ค. ์ด๋•Œ ์–ผ์Œ ํ‹€์˜ ๋ชจ์–‘์ด ์ฃผ์–ด์กŒ์„ ๋•Œ ์ƒ์„ฑ๋˜๋Š” ์ด์•„์ด์Šคํฌ๋ฆผ์˜ ๊ฐœ์ˆ˜๋ฅผ ๊ตฌํ•˜๋Š” ํ”„๋กœ๊ทธ๋žจ์„ ์ž‘์„ฑํ•˜์‹œ์˜ค. ์ž…๋ ฅ - ์ฒซ ๋ฒˆ์งธ ์ค„์— ์–ผ์Œ ํ‹€์˜ ์„ธ๋กœ ๊ธธ์ด N๊ณผ ๊ฐ€๋กœ๊ธธ์ด M์ด ์ฃผ์–ด์ง„๋‹ค. (1 < N, M < 1,000) - ๋‘ ๋ฒˆ์งธ ์ค„๋ถ€ํ„ฐ N + 1๋ฒˆ์งธ ์ค„๊นŒ์ง€ ์–ผ์Œ ํ‹€์˜ ํ˜•ํƒœ๊ฐ€ ์ฃผ์–ด์ง„๋‹ค. - ์ด๋•Œ ๊ตฌ๋ฉ์ด ๋šซ๋ ค์žˆ๋Š” ๋ถ€๋ถ„์€ 0, ๊ทธ๋ ‡์ง€ ์•Š์€ ๋ถ€๋ถ„์€ 1์ด๋‹ค. ์ž…๋ ฅ ์˜ˆ์‹œ 15 14 00000111100000 11111101111110 11011101101110 11011101100000 1101111.. 2023. 3. 28.