{"componentChunkName":"component---src-templates-blog-post-js","path":"/Problem-Solving/2020-01-10-15663๋ฒˆ-N๊ณผ-M-(9)/","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":"fd8b5f45-886c-5023-bff7-00d6e57b5ff8","excerpt":"15657๋ฒˆ: N๊ณผ M (9) ์ ‘๊ทผ ๋ฐฉ๋ฒ•: 9๋ฒˆ์€ ์ž…๋ ฅ์œผ๋กœ ์ค‘๋ณต๋˜๋Š” ์ˆ˜๊ฐ€ ๋“ค์–ด์˜ฌ ๋•Œ ๊ฒฝ์šฐ์˜ ์ˆ˜๋“ค ์ค‘ ์ค‘๋ณต์„ ์—†์• ์ฃผ์–ด์•ผ ํ•˜๋Š”๋ฐ, ์ด๋ฅผ ์œ„ํ•ด์„œ ๊ฒฐ๊ณผ๋“ค์„ ๋ชจ์œผ๋Š” set์„ ํ•˜๋‚˜ ๋งŒ๋“ค์–ด์„œ ๋ฒกํ„ฐ์— ์ˆซ์ž M๊ฐœ๊ฐ€ ๋ชจ์ด๋ฉด ๋ฐ”๋กœ ์ถœ๋ ฅํ•˜์ง€ ์•Š๊ณ  set์— ์ €์žฅ์‹œํ‚ค๋Š” ๋ฐฉ๋ฒ•์œผ๋กœ ํ•ด๊ฒฐํ–ˆ๋‹ค. set์€ ์ค‘๋ณต๋„ ๊ฑธ๋Ÿฌ์ฃผ๊ณ  ์ •๋ ฌ๋„ ํ•ด์ค€๋‹ค! ๊ฐœ๊ฟ€โ€ฆ ํ†ต๊ณผ ์ฝ”๋“œ:","html":"

15657๋ฒˆ: N๊ณผ M (9)

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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.\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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9๋ฒˆ์€ ์ž…๋ ฅ์œผ๋กœ ์ค‘๋ณต๋˜๋Š” ์ˆ˜๊ฐ€ ๋“ค์–ด์˜ฌ ๋•Œ ๊ฒฝ์šฐ์˜ ์ˆ˜๋“ค ์ค‘ ์ค‘๋ณต์„ ์—†์• ์ฃผ์–ด์•ผ ํ•˜๋Š”๋ฐ, ์ด๋ฅผ ์œ„ํ•ด์„œ ๊ฒฐ๊ณผ๋“ค์„ ๋ชจ์œผ๋Š” set์„ ํ•˜๋‚˜ ๋งŒ๋“ค์–ด์„œ ๋ฒกํ„ฐ์— ์ˆซ์ž M๊ฐœ๊ฐ€ ๋ชจ์ด๋ฉด ๋ฐ”๋กœ ์ถœ๋ ฅํ•˜์ง€ ์•Š๊ณ  set์— ์ €์žฅ์‹œํ‚ค๋Š” ๋ฐฉ๋ฒ•์œผ๋กœ ํ•ด๊ฒฐํ–ˆ๋‹ค. set์€ ์ค‘๋ณต๋„ ๊ฑธ๋Ÿฌ์ฃผ๊ณ  ์ •๋ ฌ๋„ ํ•ด์ค€๋‹ค! ๊ฐœ๊ฟ€โ€ฆ

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ํ†ต๊ณผ ์ฝ”๋“œ:

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#include <iostream>\n#include <vector>\n#include <set>\n\nusing namespace std;\n\nint M;\nvector<int> result;\nset<vector<int>> s;\n\n\nvoid DFS(vector<pair<int, bool>> vp){\n    if (result.size() == M){\n        s.insert(result);\n        return;\n    }\n\n    for (int i = 0  ; i < vp.size() ; i++){\n        if (!vp[i].second){\n            vp[i].second = true;\n            result.push_back(vp[i].first);\n            DFS(vp);\n            result.pop_back();\n            vp[i].second = false;\n        }\n    }\n\n}\n\nint main (){\n    int N;\n    cin >> N >> M;\n    vector<pair<int, bool>> vp;\n\n    while(N--){\n        int in;\n        cin >> in;\n        vp.push_back(make_pair(in, false));\n    }\n    DFS(vp);\n\n    for (auto it : s){\n        for(auto i : it){\n            cout << i << \" \";\n        }\n        cout << \"\\n\";\n    }\n\n\n    return 0;\n}
","frontmatter":{"title":"[๋ฐฑ์ค€ ์•Œ๊ณ ๋ฆฌ์ฆ˜] 15663๋ฒˆ: N๊ณผ M (9)","date":"May 05, 2020"}}},"pageContext":{"slug":"/Problem-Solving/2020-01-10-15663๋ฒˆ-N๊ณผ-M-(9)/","previous":{"fields":{"slug":"/Problem-Solving/2020-01-10-15664๋ฒˆ-N๊ณผ-M-(10)/"},"frontmatter":{"title":"[๋ฐฑ์ค€ ์•Œ๊ณ ๋ฆฌ์ฆ˜] 15664๋ฒˆ: N๊ณผ M (10)","category":"Problem-Solving","draft":false}},"next":{"fields":{"slug":"/Problem-Solving/2020-01-10-15657๋ฒˆ-N๊ณผ-M-(8)/"},"frontmatter":{"title":"[๋ฐฑ์ค€ ์•Œ๊ณ ๋ฆฌ์ฆ˜] 15657๋ฒˆ: N๊ณผ M (8)","category":"Problem-Solving","draft":false}}}},"staticQueryHashes":["2486386679","3128451518"]}