{"id":21,"date":"2023-02-18T22:52:49","date_gmt":"2023-02-18T14:52:49","guid":{"rendered":"http:\/\/boyliang.com\/?p=21"},"modified":"2025-08-05T21:58:35","modified_gmt":"2025-08-05T13:58:35","slug":"sort%e6%8e%92%e5%ba%8f%e8%af%a6%e8%a7%a3","status":"publish","type":"post","link":"https:\/\/boyliang.com\/index.php\/2023\/02\/18\/sort%e6%8e%92%e5%ba%8f%e8%af%a6%e8%a7%a3\/","title":{"rendered":"sort()\u6392\u5e8f\u8be6\u89e3"},"content":{"rendered":"\n

\u4e00\u3001\u7b80\u4ecb\uff1a<\/h3>\n\n\n\n

1.\u4f18\u52bf\uff1a<\/h4>\n\n\n\n

\u624b\u5199\u5c31\u6709\u70b9\u6d6a\u8d39\u65f6\u95f4\uff0c\u8c03\u51fd\u6570\u5feb\u3002<\/p>\n\n\n\n

2.\u5b9e\u73b0\u539f\u7406\uff1a<\/h4>\n\n\n\n

\u4e5f\u8bb8\u4f60\u4f1a\u7591\u95ee\uff0c\u6211\u4f7f\u7528sort\u65b9\u6cd5\u5bf9\u6570\u636e\u8fdb\u884c\u6392\u5e8f\u5c31\u4e00\u5b9a\u5408\u9002\u5417\uff1fsort()\u53ef\u4ee5\u6839\u636e\u6211\u7684\u9700\u8981\u5bf9\u6570\u636e\u8fdb\u884c\u6392\u5e8f\u5417\uff1f\u5176\u5b9esort()\u51fd\u6570\u8fd8\u662f\u4e00\u4e2a\u6bd4\u8f83\u7075\u6d3b\u7684\u51fd\u6570\u3002\u5f88\u591a\u89e3\u91ca\u662f\uff1asort()\u51fd\u6570\u662f\u7c7b\u4f3c\u4e8e\u5feb\u901f\u6392\u5e8f\u7684\u65b9\u6cd5\uff0c\u65f6\u95f4\u590d\u6742\u5ea6\u4e3an*log2(n)\uff0c\u6267\u884c\u6548\u7387\u8f83\u9ad8\u3002 \u2003\u5176\u5b9eSTL\u4e2d\u7684sort()\u5e76\u975e\u53ea\u662f\u666e\u901a\u7684\u5feb\u901f\u6392\u5e8f\uff0c\u9664\u4e86\u5bf9\u666e\u901a\u7684\u5feb\u901f\u6392\u5e8f\u8fdb\u884c\u4f18\u5316\uff0c\u5b83\u8fd8\u7ed3\u5408\u4e86\u63d2\u5165\u6392\u5e8f\u548c\u5806\u6392\u5e8f\u3002\u6839\u636e\u4e0d\u540c\u7684\u6570\u91cf\u7ea7\u522b\u4ee5\u53ca\u4e0d\u540c\u60c5\u51b5\uff0c\u80fd\u81ea\u52a8\u9009\u7528\u5408\u9002\u7684\u6392\u5e8f\u65b9\u6cd5\u3002\u5f53\u6570\u636e\u91cf\u8f83\u5927\u65f6\u91c7\u7528\u5feb\u901f\u6392\u5e8f\uff0c\u5206\u6bb5\u9012\u5f52\u3002\u4e00\u65e6\u5206\u6bb5\u540e\u7684\u6570\u636e\u91cf\u5c0f\u4e8e\u67d0\u4e2a\u9600\u503c\uff0c\u4e3a\u907f\u514d\u9012\u5f52\u8c03\u7528\u5e26\u6765\u8fc7\u5927\u7684\u989d\u5916\u8d1f\u8377\uff0c\u4fbf\u4f1a\u6539\u7528\u63d2\u5165\u6392\u5e8f\u3002\u800c\u5982\u679c\u9012\u5f52\u5c42\u6b21\u8fc7\u6df1\uff0c\u6709\u51fa\u73b0\u6700\u574f\u60c5\u51b5\u7684\u503e\u5411\uff0c\u8fd8\u4f1a\u6539\u7528\u5806\u6392\u5e8f\u3002\u6240\u4ee5\u8bf4sort()\u662f\u4e00\u4e2a\u6bd4\u8f83\u7075\u6d3b\u7684\u51fd\u6570\uff0c\u5b83\u4e5f\u4f1a\u6839\u636e\u6211\u4eec\u6570\u636e\u7684\u9700\u8981\u8fdb\u884c\u6392\u5e8f\uff0c\u6240\u4ee5\u6211\u4eec\u5c31\u4e0d\u7528\u62c5\u5fc3\u4ee5\u4e0a\u7684\u95ee\u9898\u4e86\u3002\u5bf9\u4e8e\u5927\u90e8\u5206\u7684\u6392\u5e8f\u9700\u6c42\uff0csort()\u90fd\u662f\u53ef\u4ee5\u6ee1\u8db3\u7684\u3002<\/p>\n\n\n\n

\u4e8c\u3001\u4f7f\u7528\u65b9\u6cd5\uff1a<\/h3>\n\n\n\n

1.\u5934\u6587\u4ef6\uff1a<\/h4>\n\n\n\n

\u5728C++\u4e2d\u4f7f\u7528sort()\u51fd\u6570\u9700\u8981\u4f7f\u7528#include<algorithm>\u5934\u6587\u4ef6\u3002algorithm\u610f\u4e3a”\u7b97\u6cd5”,\u662fC++\u7684\u6807\u51c6\u6a21\u7248\u5e93\uff08STL\uff09\u4e2d\u6700\u91cd\u8981\u7684\u5934\u6587\u4ef6\u4e4b\u4e00\uff0c\u63d0\u4f9b\u4e86\u5927\u91cf\u57fa\u4e8e\u8fed\u4ee3\u5668\u7684\u975e\u6210\u5458\u6a21\u7248\u51fd\u6570\u3002<\/p>\n\n\n\n

2.\u57fa\u672c\u4f7f\u7528\u65b9\u6cd5:<\/h4>\n\n\n\n

sort(begin,end,cmp),\u6709\u4e09\u4e2a\u53c2\u6570\uff0cbegin\u7b2c\u4e00\u4e2a\u5143\u7d20\u7684\u6307\u9488,end\u6700\u540e\u4e00\u4e2a\u5143\u7d20\u7684\u4e0b\u4e00\u4e2a\u4f4d\u7f6e\u7684\u6307\u9488\uff0ccmp\u53c2\u6570\u4e3a\u6392\u5e8f\u51c6\u5219\uff0ccmp\u53c2\u6570\u53ef\u4ee5\u4e0d\u5199\uff0c\u5982\u679c\u4e0d\u5199\u7684\u8bdd\uff0c\u9ed8\u8ba4\u4ece\u5c0f\u5230\u5927\u8fdb\u884c\u6392\u5e8f\u3002\u5982\u679c\u6211\u4eec\u60f3\u4ece\u5927\u5230\u5c0f\u6392\u5e8f\u53ef\u4ee5\u5c06cmp\u53c2\u6570\u5199\u4e3agreater<int>()\u5c31\u662f\u5bf9int\u6570\u7ec4\u8fdb\u884c\u6392\u5e8f\uff0c\u5f53\u7136<>\u4e2d\u6211\u4eec\u4e5f\u53ef\u4ee5\u5199double\u3001long\u3001float\u7b49\u7b49\u3002<\/p>\n\n\n\n

3.\u81ea\u5b9a\u4e49\u6392\u5e8f\u51c6\u5219\uff1a<\/h4>\n\n\n\n

sort()\u51fd\u6570\u53ef\u4ee5\u81ea\u5b9a\u4e49\u6392\u5e8f\u51c6\u5219\uff0c\u4ee5\u4fbf\u6ee1\u8db3\u4e0d\u540c\u7684\u6392\u5e8f\u60c5\u51b5\u3002\u4f7f\u7528sort()\u6211\u4eec\u4e0d\u4ec5\u4ec5\u53ef\u4ee5\u4ece\u5927\u5230\u5c0f\u6392\u6216\u8005\u4ece\u5c0f\u5230\u5927\u6392\uff0c\u8fd8\u53ef\u4ee5\u6309\u7167\u4e00\u5b9a\u7684\u51c6\u5219\u8fdb\u884c\u6392\u5e8f\u3002\u6bd4\u5982\u8bf4\u6211\u4eec\u6309\u7167\u6bcf\u4e2a\u6570\u7684\u4e2a\u4f4d\u8fdb\u884c\u4ece\u5927\u5230\u5c0f\u6392\u5e8f\uff0c\u6211\u4eec\u5c31\u53ef\u4ee5\u6839\u636e\u81ea\u5df1\u7684\u9700\u6c42\u6765\u5199\u4e00\u4e2a\u51fd\u6570\u4f5c\u4e3a\u6392\u5e8f\u7684\u51c6\u5219\u4f20\u5165\u5230sort()\u4e2d\u3002 \u6211\u4eec\u53ef\u4ee5\u5c06\u8fd9\u4e2a\u51fd\u6570\u5b9a\u4e49\u4e3a\uff1a<\/p>\n\n\n\n

#include<iostream>\n#include<algorithm>\nusing namespace std;\n\nbool cmp(int x,int y){\n\treturn x % 10 > y % 10;\n}\n\nint main(){\n\tint num[10] = {65,59,96,13,21,80,72,33,44,99};\n\tsort(num,num+10,cmp);\n\tfor(int i=0;i<10;i++){\n\t\tcout<<num[i]<<\" \";\n\t}\/\/\u8f93\u51fa\u7ed3\u679c\uff1a59 99 96 65 44 13 33 72 21 80\n\t\n\treturn 0;\n\t\n} <\/code><\/pre>\n\n\n\n
4.\u5bf9\u7ed3\u6784\u4f53\u8fdb\u884c\u6392\u5e8f:<\/h4>\n\n\n\n
sort()\u4e5f\u53ef\u4ee5\u5bf9\u7ed3\u6784\u4f53\u8fdb\u884c\u6392\u5e8f\uff0c\u6bd4\u5982\u6211\u4eec\u5b9a\u4e49\u4e00\u4e2a\u7ed3\u6784\u4f53\u542b\u6709\u5458\u5de5\u7684\u59d3\u540d\u548cID\u7684\u7ed3\u6784\u4f53Emplyee\uff0c\u7136\u540e\u6211\u4eec\u6309\u7167\u6bcf\u4e2a\u5458\u5de5\u7684ID\u4ece\u5e95\u5230\u9ad8\u8fdb\u884c\u6392\u5e8f\u3002\u9996\u5148\u6211\u4eec\u5c06\u7ed3\u6784\u4f53\u5b9a\u4e49\u4e3a\uff1a<\/p>\n\n\n\n
#include<iostream>\n#include<string>\n#include<algorithm>\nusing namespace std;\n\nstruct Emplyee{\n    string name;\n    int ID;\n    Emplyee() {}\n    Emplyee(string n,int s):name(n),score(s) {}\n};\n\nbool cmp_score(Emplyee x,Emplyee y){\n    return x.ID < y.TD;\n}\n\nint main(){\n    Emplyee emp[3];\n    string n;\n    int s;\n    for(int i=0;i<3;i++){\n        cin>>n>>s;\n        emp[i] = emp(n,s);\n    }\n    sort(emp,emp+3,cmp_score);\n    \n    for(int i=0;i<3;i++){\n        cout<<emp[i].name<<\" \"<<emp[i].ID<<endl;\n    }\n    return 0;\n}<\/code><\/pre>\n\n\n\n
\u518d\u6bd4\u5982\uff0c\u6211\u4eec\u8981\u6839\u636e\u5458\u5de5\u76843\u4e2a\u65b9\u9762\u7684\u5e73\u5747\u5206\u9ad8\u4f4e\u8fdb\u884c\u6392\u540d\uff0c\u90a3\u4e48\u8fd9\u4e2acmp\u51fd\u6570\u6211\u4eec\u53ef\u5b9a\u4e49\u4e3a\uff1a<\/p>\n\n\n\n
#include<iostream>\n#include<algorithm>\n#include<string>\nusing namespace std;\n\nstruct Emplyee{\n    string name;\n    double score[3];\n}\nbool cmp_score(Emplyee x,Emplyee y){\n    double average_x,average_y;\n    average_x = (x.score[0]+x.score[1]+x.score[2])\/3;\n\taverage_y = (y.score[0]+y.score[1]+y.score[2])\/3;\n\treturn average_x > average_y;\n}\nint main(){\n    Emplyee emp[3];\n    string n;\n    int s;\n    for(int i=0;i<3;i++){\n        cin>>emp[i].name;\n        for(int j=0;j<3;j++){\n            cin>>emp.score[j];\n        }\n    }\n    \n \tsort(stu,stu+3,cmp_score);\n\t\n\tfor(int i=0;i<3;i++){\n\t\tcout<<stu[i].name<<\" \";\n\t\tfor(int j=0;j<4;j++){\n\t\t\tcout<<stu[i].score[j]<<\" \";\n\t\t}\n\t\tcout<<endl;\n\t}\n\t\n\treturn 0;\n}<\/code><\/pre>\n","protected":false},"excerpt":{"rendered":"
\u4e00\u3001\u7b80\u4ecb\uff1a 1.\u4f18\u52bf\uff1a \u624b\u5199\u5c31\u6709\u70b9\u6d6a\u8d39\u65f6\u95f4\uff0c\u8c03\u51fd\u6570\u5feb\u3002 2.\u5b9e\u73b0\u539f\u7406\uff1a \u4e5f\u8bb8\u4f60\u4f1a\u7591\u95ee\uff0c\u6211\u4f7f\u7528sort\u65b9\u6cd5\u5bf9\u6570\u636e […]<\/p>\n","protected":false},"author":2,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[9],"tags":[],"class_list":["post-21","post","type-post","status-publish","format-standard","hentry","category-9"],"_links":{"self":[{"href":"https:\/\/boyliang.com\/index.php\/wp-json\/wp\/v2\/posts\/21","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/boyliang.com\/index.php\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/boyliang.com\/index.php\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/boyliang.com\/index.php\/wp-json\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/boyliang.com\/index.php\/wp-json\/wp\/v2\/comments?post=21"}],"version-history":[{"count":1,"href":"https:\/\/boyliang.com\/index.php\/wp-json\/wp\/v2\/posts\/21\/revisions"}],"predecessor-version":[{"id":84,"href":"https:\/\/boyliang.com\/index.php\/wp-json\/wp\/v2\/posts\/21\/revisions\/84"}],"wp:attachment":[{"href":"https:\/\/boyliang.com\/index.php\/wp-json\/wp\/v2\/media?parent=21"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/boyliang.com\/index.php\/wp-json\/wp\/v2\/categories?post=21"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/boyliang.com\/index.php\/wp-json\/wp\/v2\/tags?post=21"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}