{"id":65586,"date":"2025-05-03T10:50:27","date_gmt":"2025-05-03T02:50:27","guid":{"rendered":"https:\/\/fwq.ai\/blog\/65586\/"},"modified":"2025-05-03T10:50:27","modified_gmt":"2025-05-03T02:50:27","slug":"java%e6%80%8e%e4%b9%88%e5%bf%ab%e9%80%9f%e7%bb%99%e6%95%b0%e7%bb%84%e6%8e%92%e5%ba%8f-2","status":"publish","type":"post","link":"https:\/\/fwq.ai\/blog\/65586\/","title":{"rendered":"java\u600e\u4e48\u5feb\u901f\u7ed9\u6570\u7ec4\u6392\u5e8f"},"content":{"rendered":"

\n java \u4e2d\u53ef\u7528\u4e8e\u5feb\u901f\u6570\u7ec4\u6392\u5e8f\u7684\u7b97\u6cd5\u5305\u62ec\uff1a\u5feb\u901f\u6392\u5e8f\uff08\u5e73\u5747\u65f6\u95f4\u590d\u6742\u5ea6\uff1ao(n log n)\uff09\u63d2\u5165\u6392\u5e8f\uff08\u5bf9\u4e8e\u5c0f\u578b\u6570\u7ec4\uff0c\u65f6\u95f4\u590d\u6742\u5ea6\uff1ao(n^2)\uff09\u9009\u62e9\u6392\u5e8f\uff08\u65f6\u95f4\u590d\u6742\u5ea6\uff1ao(n^2)\uff09\n<\/p><\/blockquote>\n

\"java\u600e\u4e48\u5feb\u901f\u7ed9\u6570\u7ec4\u6392\u5e8f\u63d2\u56fe\"<\/p>\n

\u5982\u4f55\u5feb\u901f\u7ed9 Java \u6570\u7ec4\u6392\u5e8f<\/strong><\/p>\n

\u5feb\u901f\u6392\u5e8f<\/strong><\/p>\n

Java \u63d0\u4f9b\u4e86 Arrays.sort() \u65b9\u6cd5\uff0c\u5b83\u4f7f\u7528\u5feb\u901f\u6392\u5e8f\u7b97\u6cd5\u5bf9\u7ed9\u5b9a\u7684\u6570\u7ec4\u8fdb\u884c\u6392\u5e8f\u3002\u5feb\u901f\u6392\u5e8f\u662f\u4e00\u79cd\u9ad8\u5ea6\u9ad8\u6548\u7684\u6392\u5e8f\u7b97\u6cd5\uff0c\u5176\u5e73\u5747\u65f6\u95f4\u590d\u6742\u5ea6\u4e3a O(n log n)\u3002<\/p>\n

\u5feb\u901f\u6392\u5e8f\u7684\u6b65\u9aa4\u5982\u4e0b\uff1a<\/p>\n

\u7acb\u5373\u5b66\u4e60<\/span>\u201c\u201d\uff1b<\/p>\n

    \n
  1. \u9009\u62e9\u4e00\u4e2a\u67a2\u8f74\u5143\u7d20\u3002<\/li>\n
  2. \u5c06\u6570\u7ec4\u5212\u5206\u6210\u4e24\u4e2a\u5b50\u6570\u7ec4\uff1a\u5c0f\u4e8e\u67a2\u8f74\u5143\u7d20\u7684\u548c\u5927\u4e8e\u6216\u7b49\u4e8e\u67a2\u8f74\u5143\u7d20\u7684\u3002<\/li>\n
  3. \u9012\u5f52\u5730\u5bf9\u4e24\u4e2a\u5b50\u6570\u7ec4\u6392\u5e8f\u3002<\/li>\n<\/ol>\n

    \u63d2\u5165\u6392\u5e8f<\/strong><\/p>\n

    \u5bf9\u4e8e\u5c0f\u578b\u7684\u6570\u7ec4\uff08\u901a\u5e38\u5c11\u4e8e 16 \u4e2a\u5143\u7d20\uff09\uff0c\u63d2\u5165\u6392\u5e8f\u662f\u4e00\u79cd\u66f4\u6709\u6548\u7684\u7b97\u6cd5\u3002\u5b83\u7684\u65f6\u95f4\u590d\u6742\u5ea6\u4e3a O(n^2)\uff0c\u4f46\u5bf9\u4e8e\u5c0f\u578b\u6570\u7ec4\u6765\u8bf4\uff0c\u5176\u6027\u80fd\u6bd4\u5feb\u901f\u6392\u5e8f\u66f4\u597d\u3002<\/p>\n

    \u63d2\u5165\u6392\u5e8f\u7684\u6b65\u9aa4\u5982\u4e0b\uff1a<\/p>\n

      \n
    1. \u4ece\u7b2c\u4e8c\u4e2a\u5143\u7d20\u5f00\u59cb\uff0c\u4f9d\u6b21\u904d\u5386\u6570\u7ec4\u4e2d\u7684\u6bcf\u4e2a\u5143\u7d20\u3002<\/li>\n
    2. \u5c06\u5f53\u524d\u5143\u7d20\u63d2\u5165\u5230\u5b83\u524d\u9762\u5df2\u6392\u5e8f\u7684\u5b50\u6570\u7ec4\u4e2d\uff0c\u4f7f\u5176\u4fdd\u6301\u6709\u5e8f\u72b6\u6001\u3002<\/li>\n<\/ol>\n

      \u9009\u62e9\u6392\u5e8f<\/strong><\/p>\n

      \u9009\u62e9\u6392\u5e8f\u662f\u4e00\u79cd\u7b80\u5355\u4f46\u6548\u7387\u8f83\u4f4e\uff08O(n^2)\uff09\u7684\u6392\u5e8f\u7b97\u6cd5\u3002\u5b83\u7684\u6b65\u9aa4\u5982\u4e0b\uff1a<\/p>\n

        \n
      1. \u627e\u5230\u6570\u7ec4\u4e2d\u672a\u6392\u5e8f\u90e8\u5206\u4e2d\u6700\u5c0f\u7684\u5143\u7d20\u3002<\/li>\n
      2. \u5c06\u6700\u5c0f\u5143\u7d20\u4e0e\u672a\u6392\u5e8f\u90e8\u5206\u7684\u7b2c\u4e00\u4e2a\u5143\u7d20\u4ea4\u6362\u3002<\/li>\n
      3. \u91cd\u590d\u6b65\u9aa4 1 \u548c 2\uff0c\u76f4\u5230\u672a\u6392\u5e8f\u90e8\u5206\u53d8\u4e3a\u7a7a\u3002<\/li>\n<\/ol>\n

        \u5176\u4ed6\u6392\u5e8f\u7b97\u6cd5<\/strong><\/p>\n

        \u9664\u4e86\u4e0a\u8ff0\u7b97\u6cd5\u4e4b\u5916\uff0cJava \u8fd8\u63d0\u4f9b\u4e86\u5176\u4ed6\u6392\u5e8f\u7b97\u6cd5\uff0c\u4f8b\u5982\uff1a<\/p>\n

          \n
        • \u5f52\u5e76\u6392\u5e8f\uff08O(n log n)\uff09<\/li>\n
        • \u5806\u6392\u5e8f\uff08O(n log n)\uff09<\/li>\n
        • \u6876\u6392\u5e8f\uff08O(n)\uff09<\/li>\n<\/ul>\n

          \u7b97\u6cd5\u7684\u9009\u62e9\u53d6\u51b3\u4e8e\u6570\u7ec4\u7684\u5927\u5c0f\u3001\u6570\u636e\u7c7b\u578b\u548c\u6240\u9700\u7684\u7279\u5b9a\u6392\u5e8f\u987a\u5e8f\u3002<\/p>\n

          \u4ee5\u4e0a\u5c31\u662fjava\u600e\u4e48\u5feb\u901f\u7ed9\u6570\u7ec4\u6392\u5e8f\u7684\u8be6\u7ec6\u5185\u5bb9\uff0c\u66f4\u591a\u8bf7\u5173\u6ce8IDCBABY\u5176\u5b83\u76f8\u5173\u6587\u7ae0\uff01<\/p>\n","protected":false},"excerpt":{"rendered":"

          java \u4e2d\u53ef\u7528\u4e8e\u5feb\u901f\u6570\u7ec4\u6392\u5e8f\u7684\u7b97\u6cd5\u5305\u62ec\uff1a\u5feb\u901f\u6392\u5e8f\uff08\u5e73\u5747\u65f6\u95f4\u590d\u6742\u5ea6\uff1ao(n log n)\uff09\u63d2\u5165\u6392\u5e8f\uff08\u5bf9\u4e8e\u5c0f\u578b\u6570\u7ec4\uff0c\u65f6\u95f4\u590d\u6742\u5ea6\uff1ao(n^2)\uff09\u9009\u62e9\u6392\u5e8f\uff08\u65f6\u95f4\u590d\u6742\u5ea6\uff1ao(n^2)\uff09 \u5982\u4f55\u5feb\u901f\u7ed9 Java \u6570\u7ec4\u6392\u5e8f \u5feb\u901f\u6392\u5e8f Java \u63d0\u4f9b\u4e86 Arrays.sort() \u65b9\u6cd5\uff0c\u5b83\u4f7f\u7528\u5feb\u901f\u6392\u5e8f\u7b97\u6cd5\u5bf9\u7ed9\u5b9a\u7684\u6570\u7ec4\u8fdb\u884c\u6392\u5e8f\u3002\u5feb\u901f\u6392\u5e8f\u662f\u4e00\u79cd\u9ad8\u5ea6\u9ad8\u6548\u7684\u6392\u5e8f\u7b97\u6cd5\uff0c\u5176\u5e73\u5747\u65f6\u95f4\u590d\u6742\u5ea6\u4e3a O(n log n)\u3002 \u5feb\u901f\u6392\u5e8f\u7684\u6b65\u9aa4\u5982\u4e0b\uff1a \u7acb\u5373\u5b66\u4e60\u201c\u201d\uff1b \u9009\u62e9\u4e00\u4e2a\u67a2\u8f74\u5143\u7d20\u3002 \u5c06\u6570\u7ec4\u5212\u5206\u6210\u4e24\u4e2a\u5b50\u6570\u7ec4\uff1a\u5c0f\u4e8e\u67a2\u8f74\u5143\u7d20\u7684\u548c\u5927\u4e8e\u6216\u7b49\u4e8e\u67a2\u8f74\u5143\u7d20\u7684\u3002 \u9012\u5f52\u5730\u5bf9\u4e24\u4e2a\u5b50\u6570\u7ec4\u6392\u5e8f\u3002 \u63d2\u5165\u6392\u5e8f \u5bf9\u4e8e\u5c0f\u578b\u7684\u6570\u7ec4\uff08\u901a\u5e38\u5c11\u4e8e 16 \u4e2a\u5143\u7d20\uff09\uff0c\u63d2\u5165\u6392\u5e8f\u662f\u4e00\u79cd\u66f4\u6709\u6548\u7684\u7b97\u6cd5\u3002\u5b83\u7684\u65f6\u95f4\u590d\u6742\u5ea6\u4e3a O(n^2)\uff0c\u4f46\u5bf9\u4e8e\u5c0f\u578b\u6570\u7ec4\u6765\u8bf4\uff0c\u5176\u6027\u80fd\u6bd4\u5feb\u901f\u6392\u5e8f\u66f4\u597d\u3002 \u63d2\u5165\u6392\u5e8f\u7684\u6b65\u9aa4\u5982\u4e0b\uff1a \u4ece\u7b2c\u4e8c\u4e2a\u5143\u7d20\u5f00\u59cb\uff0c\u4f9d\u6b21\u904d\u5386\u6570\u7ec4\u4e2d\u7684\u6bcf\u4e2a\u5143\u7d20\u3002 \u5c06\u5f53\u524d\u5143\u7d20\u63d2\u5165\u5230\u5b83\u524d\u9762\u5df2\u6392\u5e8f\u7684\u5b50\u6570\u7ec4\u4e2d\uff0c\u4f7f\u5176\u4fdd\u6301\u6709\u5e8f\u72b6\u6001\u3002 \u9009\u62e9\u6392\u5e8f \u9009\u62e9\u6392\u5e8f\u662f\u4e00\u79cd\u7b80\u5355\u4f46\u6548\u7387\u8f83\u4f4e\uff08O(n^2)\uff09\u7684\u6392\u5e8f\u7b97\u6cd5\u3002\u5b83\u7684\u6b65\u9aa4\u5982\u4e0b\uff1a \u627e\u5230\u6570\u7ec4\u4e2d\u672a\u6392\u5e8f\u90e8\u5206\u4e2d\u6700\u5c0f\u7684\u5143\u7d20\u3002 \u5c06\u6700\u5c0f\u5143\u7d20\u4e0e\u672a\u6392\u5e8f\u90e8\u5206\u7684\u7b2c\u4e00\u4e2a\u5143\u7d20\u4ea4\u6362\u3002 \u91cd\u590d\u6b65\u9aa4 1 \u548c 2\uff0c\u76f4\u5230\u672a\u6392\u5e8f\u90e8\u5206\u53d8\u4e3a\u7a7a\u3002 \u5176\u4ed6\u6392\u5e8f\u7b97\u6cd5 \u9664\u4e86\u4e0a\u8ff0\u7b97\u6cd5\u4e4b\u5916\uff0cJava \u8fd8\u63d0\u4f9b\u4e86\u5176\u4ed6\u6392\u5e8f\u7b97\u6cd5\uff0c\u4f8b\u5982\uff1a \u5f52\u5e76\u6392\u5e8f\uff08O(n log n)\uff09 \u5806\u6392\u5e8f\uff08O(n log n)\uff09 \u6876\u6392\u5e8f\uff08O(n)\uff09 \u7b97\u6cd5\u7684\u9009\u62e9\u53d6\u51b3\u4e8e\u6570\u7ec4\u7684\u5927\u5c0f\u3001\u6570\u636e\u7c7b\u578b\u548c\u6240\u9700\u7684\u7279\u5b9a\u6392\u5e8f\u987a\u5e8f\u3002 \u4ee5\u4e0a\u5c31\u662fjava\u600e\u4e48\u5feb\u901f\u7ed9\u6570\u7ec4\u6392\u5e8f\u7684\u8be6\u7ec6\u5185\u5bb9\uff0c\u66f4\u591a\u8bf7\u5173\u6ce8IDCBABY\u5176\u5b83\u76f8\u5173\u6587\u7ae0\uff01<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[16],"tags":[],"class_list":["post-65586","post","type-post","status-publish","format-standard","hentry","category-16"],"_links":{"self":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/posts\/65586","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/comments?post=65586"}],"version-history":[{"count":0,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/posts\/65586\/revisions"}],"wp:attachment":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/media?parent=65586"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/categories?post=65586"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/tags?post=65586"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}