{"id":336,"date":"2024-04-28T00:02:02","date_gmt":"2024-04-27T16:02:02","guid":{"rendered":"https:\/\/seanxd.com\/?p=336"},"modified":"2024-04-28T00:02:04","modified_gmt":"2024-04-27T16:02:04","slug":"zerojudge-m702","status":"publish","type":"post","link":"https:\/\/seanxd.com\/en\/zerojudge-m702\/","title":{"rendered":"ZeroJudge M702: Outstanding Alumnus"},"content":{"rendered":"\n\n\n

\u6587\u6587\u6bcd\u6821\u9069\u9022\u767e\u5e74\u6821\u6176\uff0c\u6821\u53cb\u6703\u8209\u8fa6\u300c\u5091\u51fa\u6821\u53cb\u7968\u9078\u6d3b\u52d5\u300d\u3002\u5728\u56de\u6536\u4e86\u6240\u6709\u7684\u6821\u53cb\u9078\u7968\u4e4b\u5f8c\uff0c\u4ea4\u7d66\u4f60\u4f86\u5354\u52a9\u7d71\u8a08\u7968\u6578<\/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>
\u8f38\u5165\u7684\u7b2c\u4e00\u884c\u542b\u6709\u5169\u500b\u6574\u6578 N \u548c M (1 \u2264 N \u2264 10\uff0c1 \u2264 M \u2264 105)\uff0c\u4ee3\u8868\u4e00\u5171\u56de\u6536 N \u5f35\u6709\u6548\u9078\u7968\uff0c\u8981\u9078\u51fa M \u500b\u5091\u51fa\u6821\u53cb\u3002
\u63a5\u4e0b\u4f86\u6703\u6709 N \u884c\uff0c\u6bcf\u884c\u6709\u4e00\u500b\u4e0d\u542b\u7a7a\u767d\u7684\u540d\u5b57\uff0c\u4ee3\u8868\u8a72\u5f35\u9078\u7968\u6240\u6295\u7d66\u7684\u5c0d\u8c61\u3002<\/td>		\u4f9d\u5f97\u7968\u6578\u9ad8\u4f4e\uff0c\u8f38\u51fa\u5f97\u7968\u6700\u9ad8\u7684 M \u500b\u5091\u51fa\u6821\u53cb\u65bc\u4e00\u884c\u3002\u524d M \u540d\u7684\u5091\u51fa\u6821\u53cb\u4e2d\u4e0d\u6703\u6709\u5f97\u7968\u6578\u76f8\u540c\u7684\u60c5\u6cc1\u3002<\/strong><\/td><\/tr>
10 3
Peter
James
John
John
James
James
Peter
Peter
Peter
Paul<\/td>		Peter James John<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n

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

\u4f7f\u7528 Map \u4f86\u7d00\u9304\u6bcf\u500b\u4eba\u7684\u5f97\u7968\u6578<\/strong>\uff0c\u518d\u4f86\u4f7f\u7528 for (auto it:Map)<\/strong>\uff0c\u5c07 Map \u4e2d\u7684\u503c\u6539\u7528Pair (\u5012\u904e\u4f86) \u7684\u65b9\u5f0f\u5b58\u5230\u53e6\u5916\u4e00\u500b\u9663\u5217\u4e2d<\/strong>\u3002\u5c07\u9663\u5217 Sort \u904e\u5f8c\u5c07\u9663\u5217\u4f4d\u7f6e\u6700\u5f8cM\u500b\u8cc7\u6599\u505a\u8f38\u51fa<\/strong>\uff0c\u6709\u53ef\u80fdM\u6703\u6bd4N\u9084\u8981\u5927\uff0c\u9019\u6a23\u6703\u5728\u8dd1For\u8ff4\u5708\u7684\u6642\u5019\u9020\u6210\u8a18\u61b6\u9ad4\u5340\u6bb5\u932f\u8aa4\uff0c\u6240\u4ee5 For \u8ff4\u5708\u7684\u7d42\u6b62\u689d\u4ef6\u53ef\u4ee5\u5beb\u6210 max(0, \u9663\u5217\u9577\u5ea6-M)<\/strong>\uff0c\u9019\u6a23\u5982\u679cM\u6bd4N\u5927\u9020\u6210\u7d42\u6b62\u689d\u4ef6\u70ba\u8ca0\u6578\u6642\uff0c\u7d42\u6b62\u689d\u4ef6\u6703\u6539\u62100\u907f\u514d\u8a18\u61b6\u9ad4\u5340\u6bb5\u932f\u8aa4\u3002<\/p>\n\n\n\n

\u7bc4\u4f8b\u7a0b\u5f0f\u78bc\uff0dZeroJudge M702: \u5091\u51fa\u6821\u53cb\u7968\u9078\u6d3b\u52d5<\/a><\/h3>\n\n\n\n
#include <iostream>\n#include <vector>\n#include <map>\n#include <algorithm>\nusing namespace std;\n\npair<int, string>rtn(int a, string b)\n{\n    pair<int, string>tmp;\n    tmp.first = a;\n    tmp.second = b;\n    return tmp;\n}\n\nint main() {\n    int N, M;\n    cin >> N >> M;\n    map<string, int>MAP;\n    for (int i = 0; i<N; i++)\n    {\n        string tmp;\n        cin >> tmp;\n        MAP[tmp]++;\n    }\n    vector<pair<int, string>>v;\n    for (auto it:MAP)\n    {\n        v.push_back(rtn(it.second, it.first));\n    }\n    sort(v.begin(), v.end());\n    for (int i = int(v.size())-1; i>=max(0, int(v.size())-M); i--)\n    {\n        cout << v[i].second << " ";\n    }\n    cout << "\\n";\n}\n\n\/\/ZeroJudge M702\n\/\/Dr. SeanXD<\/code><\/pre><\/div>\n","protected":false},"excerpt":{"rendered":"
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