{"componentChunkName":"component---src-templates-blog-post-js","path":"/Problem-Solving/2020-01-07-15654๋ฒˆ-N๊ณผ-M-(5)/","result":{"data":{"site":{"siteMetadata":{"title":"Hun's Footsteps ๐Ÿฅท","author":"์ „์—ฌํ›ˆ","siteUrl":"https://jeonyeohun.netlify.app","comment":{"disqusShortName":"","utterances":"jeonyeohun/jeonyeohun.github.io"},"sponsor":{"buyMeACoffeeId":"jeonyeohun"}}},"markdownRemark":{"id":"4744c19a-1e37-505c-a69c-626b3bc488cf","excerpt":"15654๋ฒˆ: N๊ณผ M (5) ์ ‘๊ทผ ๋ฐฉ๋ฒ•: ๋ฐฑํŠธ๋ž˜ํ‚น ๋ฌธ์ œ๋ฅผ ํ‘ธ๋Š”๊ฒŒ ์–ด๋ ค์›Œ์„œ ์—ฐ์Šตํ•˜๋ ค๊ณ  N๊ณผ M์œผ๋กœ ๋Œ์•„์™”๋‹ค. ์ด ๋ฌธ์ œ๋Š” ์ˆ˜์—ด์„ ๋งŒ๋“ค ์ˆ˜๊ฐ€ ์ฃผ์–ด์ง€๊ธฐ ๋•Œ๋ฌธ์— ์ด ์ˆ˜๋“ค์„ pair์˜ first๋กœ ๋„ฃ๊ณ  second๋Š” boolํ˜•ํƒœ๋กœ ๋ฐฉ๋ฌธํ–ˆ๋˜ ์ˆ˜์ธ์ง€ ํ™•์ธํ•˜๋Š” ๋ณ€์ˆ˜๋ฅผ ๋งŒ๋“ค์–ด์„œ ํ•ด๊ฒฐํ–ˆ๋‹ค. ํ†ต๊ณผ ์ฝ”๋“œ:","html":"

15654๋ฒˆ: N๊ณผ M (5)

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๋ฌธ์ œ\nN๊ฐœ์˜ ์ž์—ฐ์ˆ˜์™€ ์ž์—ฐ์ˆ˜ M์ด ์ฃผ์–ด์กŒ์„ ๋•Œ, ์•„๋ž˜ ์กฐ๊ฑด์„ ๋งŒ์กฑํ•˜๋Š” ๊ธธ์ด๊ฐ€ M์ธ ์ˆ˜์—ด์„ ๋ชจ๋‘ ๊ตฌํ•˜๋Š” ํ”„๋กœ๊ทธ๋žจ์„ ์ž‘์„ฑํ•˜์‹œ์˜ค. N๊ฐœ์˜ ์ž์—ฐ์ˆ˜๋Š” ๋ชจ๋‘ ๋‹ค๋ฅธ ์ˆ˜์ด๋‹ค.\n\nN๊ฐœ์˜ ์ž์—ฐ์ˆ˜ ์ค‘์—์„œ M๊ฐœ๋ฅผ ๊ณ ๋ฅธ ์ˆ˜์—ด\n์ž…๋ ฅ\n์ฒซ์งธ ์ค„์— N๊ณผ M์ด ์ฃผ์–ด์ง„๋‹ค. (1 โ‰ค M โ‰ค N โ‰ค 8)\n\n๋‘˜์งธ ์ค„์— N๊ฐœ์˜ ์ˆ˜๊ฐ€ ์ฃผ์–ด์ง„๋‹ค. ์ž…๋ ฅ์œผ๋กœ ์ฃผ์–ด์ง€๋Š” ์ˆ˜๋Š” 10,000๋ณด๋‹ค ์ž‘๊ฑฐ๋‚˜ ๊ฐ™์€ ์ž์—ฐ์ˆ˜์ด๋‹ค.\n\n์ถœ๋ ฅ\nํ•œ ์ค„์— ํ•˜๋‚˜์”ฉ ๋ฌธ์ œ์˜ ์กฐ๊ฑด์„ ๋งŒ์กฑํ•˜๋Š” ์ˆ˜์—ด์„ ์ถœ๋ ฅํ•œ๋‹ค. ์ค‘๋ณต๋˜๋Š” ์ˆ˜์—ด์„ ์—ฌ๋Ÿฌ ๋ฒˆ ์ถœ๋ ฅํ•˜๋ฉด ์•ˆ๋˜๋ฉฐ, ๊ฐ ์ˆ˜์—ด์€ ๊ณต๋ฐฑ์œผ๋กœ ๊ตฌ๋ถ„ํ•ด์„œ ์ถœ๋ ฅํ•ด์•ผ ํ•œ๋‹ค.\n\n์ˆ˜์—ด์€ ์‚ฌ์ „ ์ˆœ์œผ๋กœ ์ฆ๊ฐ€ํ•˜๋Š” ์ˆœ์„œ๋กœ ์ถœ๋ ฅํ•ด์•ผ ํ•œ๋‹ค.
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์ ‘๊ทผ ๋ฐฉ๋ฒ•:

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๋ฐฑํŠธ๋ž˜ํ‚น ๋ฌธ์ œ๋ฅผ ํ‘ธ๋Š”๊ฒŒ ์–ด๋ ค์›Œ์„œ ์—ฐ์Šตํ•˜๋ ค๊ณ  N๊ณผ M์œผ๋กœ ๋Œ์•„์™”๋‹ค. ์ด ๋ฌธ์ œ๋Š” ์ˆ˜์—ด์„ ๋งŒ๋“ค ์ˆ˜๊ฐ€ ์ฃผ์–ด์ง€๊ธฐ ๋•Œ๋ฌธ์— ์ด ์ˆ˜๋“ค์„ pair์˜ first๋กœ ๋„ฃ๊ณ  second๋Š” boolํ˜•ํƒœ๋กœ ๋ฐฉ๋ฌธํ–ˆ๋˜ ์ˆ˜์ธ์ง€ ํ™•์ธํ•˜๋Š” ๋ณ€์ˆ˜๋ฅผ ๋งŒ๋“ค์–ด์„œ ํ•ด๊ฒฐํ–ˆ๋‹ค.

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ํ†ต๊ณผ ์ฝ”๋“œ:

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#include <iostream>\n#include <vector>\n#include <algorithm>\n\nusing namespace std;\n\nint N, M;\nvector<pair<int, bool>> visited;\nvector<int> v (8, 0);\n\nvoid DFS(int cnt){\n    if (cnt == M) {\n        for (int i = 0 ; i < M ; i++){\n            cout << v[i] << \" \";\n        }\n        cout << \"\\n\";\n        return;\n    }\n\n    for (int i = 0 ; i < visited.size() ; i++){\n        if(!visited[i].second){\n            visited[i].second = true;\n            v[cnt] = visited[i].first;\n            DFS(cnt+1);\n            visited[i].second = false;\n        }\n    }\n}\n\nint main (){\n    cin >> N >> M;\n    for(int i = 0 ; i < N ; i++){\n        int n;\n        cin >> n;\n        visited.emplace_back(make_pair(n, false));\n    }\n    sort(visited.begin(), visited.end());\n    DFS(0);\n}
","frontmatter":{"title":"[๋ฐฑ์ค€ ์•Œ๊ณ ๋ฆฌ์ฆ˜] 15654๋ฒˆ: N๊ณผ M (5)","date":"May 05, 2020"}}},"pageContext":{"slug":"/Problem-Solving/2020-01-07-15654๋ฒˆ-N๊ณผ-M-(5)/","previous":{"fields":{"slug":"/Problem-Solving/2020-01-07-15947๋ฒˆ-์•„๊ธฐ-์„ํ™˜-๋šœ๋ฃจ๋ฃจ-๋šœ๋ฃจ/"},"frontmatter":{"title":"[๋ฐฑ์ค€ ์•Œ๊ณ ๋ฆฌ์ฆ˜] 15947๋ฒˆ: ์•„๊ธฐ ์„ํ™˜ ๋šœ๋ฃจ๋ฃจ ๋šœ๋ฃจ","category":"Problem-Solving","draft":false}},"next":{"fields":{"slug":"/Problem-Solving/2020-01-06-7568๋ฒˆ-๋ฉ์น˜/"},"frontmatter":{"title":"[๋ฐฑ์ค€ ์•Œ๊ณ ๋ฆฌ์ฆ˜] 7568๋ฒˆ: ๋ฉ์น˜","category":"Problem-Solving","draft":false}}}},"staticQueryHashes":["2486386679","3128451518"]}