{"id":612,"date":"2024-06-26T09:00:00","date_gmt":"2024-06-26T01:00:00","guid":{"rendered":"https:\/\/seanxd.com\/?p=612"},"modified":"2024-06-26T09:04:51","modified_gmt":"2024-06-26T01:04:51","slug":"zerojudge-e942","status":"publish","type":"post","link":"https:\/\/seanxd.com\/en\/zerojudge-e942\/","title":{"rendered":"ZeroJudge E942: Sorting Numbers"},"content":{"rendered":"\n\n\n

\u7d66\u4e88 N \u500b\u76f8\u7570\u7684\u6b63\u6574\u6578\uff0c\u8acb\u6309\u5927\u5c0f\u9806\u5e8f\u8f38\u51fa\u6240\u6709\u53ef\u80fd\u7684\u6392\u5217\u7d44\u5408<\/strong>\u3002<\/p>\n\n\n\n

\u7bc4\u4f8b\u6e2c\u8cc7<\/h2>\n\n\n\n
\u7bc4\u4f8b\u8f38\u5165<\/th>\u7bc4\u4f8b\u8f38\u51fa<\/th><\/tr><\/thead>
\u7b2c\u4e00\u884c\u6709\u4e00\u500b\u6b63\u6574\u6578 N (1 \u2264 N \u2264 9\uff09\uff0c\u4ee3\u8868\u6709\u5e7e\u500b\u76f8\u7570\u7684\u6b63\u6574\u6578\u3002
\u7b2c\u4e8c\u884c\u5247\u6709 N \u500b\u76f8\u7570\u7684\u6b63\u6574\u6578 x\uff080 \u2264 x \u2264 4,294,967,295\uff09\u3002<\/td>		\u6309\u7167\u5927\u5c0f\u9806\u5e8f\uff0c\u8f38\u51fa\u6240\u6709\u53ef\u80fd\u7684\u6392\u5217\u7d44\u5408\u3002<\/td><\/tr>
4
30 10 20 40<\/td>		10 20 30 40
10 20 40 30
10 30 20 40
10 30 40 20
10 40 20 30
10 40 30 20
20 10 30 40
20 10 40 30
20 30 10 40
20 30 40 10
20 40 10 30
20 40 30 10
30 10 20 40
30 10 40 20
30 20 10 40
30 20 40 10
30 40 10 20
30 40 20 10
40 10 20 30
40 10 30 20
40 20 10 30
40 20 30 10
40 30 10 20
40 30 20 10<\/td><\/tr><\/tbody><\/table>
ZeroJudge E942 \u7bc4\u4f8b\u6e2c\u8cc7<\/figcaption><\/figure>\n\n\n\n

\u89e3\u984c\u601d\u8def<\/h2>\n\n\n\n

\u6536\u5b8c\u8cc7\u6599\u4e4b\u5f8c\u53ef\u4ee5\u5148\u9032\u884c\u4e00\u6b21\u6392\u5e8f\uff0c\u8a18\u5f97\u4f7f\u7528 Long Long Int\u3002\u7136\u5f8c\u53ef\u4ee5\u8dd1\u4e00\u500b DFS\uff0c\u4e26\u4e14\u5ba3\u544a\u4e00\u500b Map \u4f86\u5b58\u76ee\u524d\u52a0\u904e\u54ea\u4e9b\u6578\u5b57\u3001\u9084\u6709\u4e00\u500b Vector \u4f86\u5b58\u76ee\u524d\u52a0\u7684\u6578\u5b57\u3002<\/p>\n\n\n\n

\u5982\u679c Vector.size() == N \u5c31\u53ef\u4ee5\u5c07\u76ee\u524d\u7684 Vector \u5b58\u5230\u4e00\u500b\u4e8c\u7dad\u9663\u5217\u4e2d\uff0c\u9019\u500b\u4e8c\u7dad\u9663\u5217\u70ba\u7b54\u6848\u3002\u5426\u5247\u5c31\u8dd1\u4e00\u500b For\u8ff4\u5708 \u5f9e 0 \u5230 N-1\uff0c\u5982\u679c\u76ee\u524d\u7684\u6578\u5b57\u5728 Map \u4e2d\u6c92\u6709\u7d00\u9304\uff0c\u5c31\u518d\u4e92\u53eb\u4e00\u6b21 DFS\uff0c\u53ea\u662f\u9019\u6b21\u5c07 Map[\u6578\u5b57]++\uff0c\u4e26\u4e14\u5c07 Vector.push_back(\u6578\u5b57)\u3002\u547c\u53eb\u5b8c\u4e4b\u5f8c\u8a18\u5f97\u8981\u5c07 Map[\u6578\u5b57]– \u548c Vector.pop_back()\u3002<\/p>\n\n\n\n

\u6700\u5f8c\u8f38\u51fa\u4e8c\u7dad\u9663\u5217\u4e2d\u7684\u8cc7\u6599\u3002<\/p>\n\n\n\n

\u7bc4\u4f8b\u7a0b\u5f0f\u78bc\uff0dZeroJudge E942: \u6578\u5b57\u6392\u5217<\/a><\/h3>\n\n\n\n
#include <iostream>\n#include <vector>\n#include <algorithm>\n#include <map>\nusing namespace std;\n\nint N;\nvector<long long int>num;\nvector<vector<long long int>>ans;\n\nvoid DFS(vector<long long int>v, map<long long int, int>MAP) {\n    if (v.size() == N) {\n        ans.push_back(v);\n        return;\n    }\n    for (int i = 0; i<N; i++) {\n        if (MAP[num[i]] == 0) {\n            MAP[num[i]]++;\n            v.push_back(num[i]);\n            DFS(v, MAP);\n            v.pop_back();\n            MAP[num[i]]--;\n        }\n    }\n}\n\nint main() {\n    cin.sync_with_stdio(0);\n    cin.tie(0);\n    cin >> N;\n    for (int i = 0; i<N; i++) {\n        long long int tmp;\n        cin >> tmp;\n        num.push_back(tmp);\n    }\n    sort(num.begin(), num.end());\n    map<long long int, int>MAP;\n    vector<long long int>v;\n    DFS(v, MAP);\n    for (auto & an : ans) {\n        for (int j = 0; j<N; j++) {\n            cout << an[j] << " ";\n        }\n        cout << "\\n";\n    }\n}\n\n\/\/ZeroJudge E942\n\/\/Dr. SeanXD<\/code><\/pre><\/div>\n","protected":false},"excerpt":{"rendered":"
\u7d66\u4e88 N \u500b\u76f8\u7570\u7684\u6b63\u6574\u6578\uff0c\u8acb\u6309\u5927\u5c0f\u9806\u5e8f\u8f38\u51fa\u6240\u6709\u53ef\u80fd\u7684\u6392\u5217\u7d44\u5408\u3002 \u7bc4\u4f8b\u6e2c\u8cc7 \u7bc4\u4f8b\u8f38\u5165 \u7bc4\u4f8b\u8f38\u51fa \u7b2c\u4e00\u884c\u6709\u4e00\u500b\u6b63\u6574 […]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"nf_dc_page":"","footnotes":""},"categories":[29],"tags":[15,14,20,22,8,19,9],"class_list":["post-612","post","type-post","status-publish","format-standard","hentry","category-zerojudge-","tag-long-long-int","tag-map","tag-20","tag-22","tag-8","tag-19","tag-9"],"blocksy_meta":[],"_links":{"self":[{"href":"https:\/\/seanxd.com\/en\/wp-json\/wp\/v2\/posts\/612","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/seanxd.com\/en\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/seanxd.com\/en\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/seanxd.com\/en\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/seanxd.com\/en\/wp-json\/wp\/v2\/comments?post=612"}],"version-history":[{"count":3,"href":"https:\/\/seanxd.com\/en\/wp-json\/wp\/v2\/posts\/612\/revisions"}],"predecessor-version":[{"id":998,"href":"https:\/\/seanxd.com\/en\/wp-json\/wp\/v2\/posts\/612\/revisions\/998"}],"wp:attachment":[{"href":"https:\/\/seanxd.com\/en\/wp-json\/wp\/v2\/media?parent=612"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/seanxd.com\/en\/wp-json\/wp\/v2\/categories?post=612"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/seanxd.com\/en\/wp-json\/wp\/v2\/tags?post=612"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}