{"id":2424,"date":"2019-12-21T10:27:33","date_gmt":"2019-12-21T07:27:33","guid":{"rendered":"http:\/\/demensdeum.com\/blog\/?p=2424"},"modified":"2024-12-16T22:32:31","modified_gmt":"2024-12-16T19:32:31","slug":"lexicompare","status":"publish","type":"post","link":"https:\/\/demensdeum.com\/blog\/zh\/2019\/12\/21\/lexicompare\/","title":{"rendered":"\u5b57\u5178\u5e8f\u6bd4\u8f83\u7b97\u6cd5"},"content":{"rendered":"<p>\u5b57\u5178\u5b57\u7b26\u4e32\u6bd4\u8f83\u7b97\u6cd5\u7684\u5de5\u4f5c\u539f\u7406\u975e\u5e38\u7b80\u5355\uff1b\u5faa\u73af\u6bd4\u8f83\u5b57\u7b26\u4ee3\u7801\uff0c\u5982\u679c\u5b57\u7b26\u4e0d\u76f8\u7b49\u5219\u8fd4\u56de\u7ed3\u679c\u3002<\/p>\n<p>C \u8bed\u8a00\u7684\u793a\u4f8b\u53ef\u4ee5\u5728\u8fd9\u91cc\u627e\u5230\uff1a<br \/><a href=\"https:\/\/github.com\/gcc-mirror\/gcc\/blob\/master\/libiberty\/memcmp.c\">https:\/\/github.com\/gcc-mirror\/gcc\/blob\/master\/libiberty\/memcmp.c<\/a><\/p>\n<p>\u5e94\u8be5\u8003\u8651\u5230\u60a8\u9700\u8981\u6bd4\u8f83\u5355\u4e2a\u9759\u6001\u7f16\u7801\u4e2d\u7684\u5b57\u7b26\uff0c\u4f8b\u5982\u5728 Swift \u4e2d\u6211\u5728 UTF-32 \u4e2d\u4f7f\u7528\u4e86\u9010\u5b57\u7b26\u6bd4\u8f83\u3002\u4f7f\u7528 memcmp \u7684\u6570\u7ec4\u6392\u5e8f\u9009\u9879\u5c06\u5b8c\u5168\u9002\u7528\u4e8e\u5355\u5b57\u8282\u5b57\u7b26\uff0c\u5728\u5176\u4ed6\u60c5\u51b5\u4e0b\uff08\u53ef\u53d8\u957f\u5ea6\u7f16\u7801\uff09\uff0c\u987a\u5e8f\u53ef\u80fd\u4e0d\u6b63\u786e\u3002\u6211\u4e0d\u6392\u9664\u57fa\u4e8e\u53d8\u957f\u7f16\u7801\u5b9e\u73b0\u7684\u53ef\u80fd\u6027\uff0c\u4f46\u5f88\u53ef\u80fd\u4f1a\u590d\u6742\u4e00\u4e2a\u6570\u91cf\u7ea7\u3002<\/p>\n<p>\u8be5\u7b97\u6cd5\u7684\u65f6\u95f4\u590d\u6742\u5ea6\u5728\u6700\u597d\u60c5\u51b5\u4e0b\u4e3a O(1)\uff0c\u5728\u5e73\u5747\u548c\u6700\u574f\u60c5\u51b5\u4e0b\u4e3a O(n)<\/p>\n<h3>\u6765\u6e90<\/h3>\n<p><a href=\"https:\/\/ru.wikipedia.org\/wiki\/Lexicography_order\" target=\"_blank\" rel=\"noopener\">https:\/\/ru.wikipedia.org\/wiki\/Lexicography_order<\/a> <\/p>\n<h3>\u6765\u6e90<\/h3>\n<p><a href=\"https:\/\/gitlab.com\/demensdeum\/algorithms\/blob\/master\/lexiCompare\/lexiCompare.swift\" target=\"_blank\" rel=\"noopener\">https:\/\/gitlab.com\/demensdeum \/algorithms\/blob\/master\/lexiCompare\/lexiCompare.swift<\/a><\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u5b57\u5178\u5b57\u7b26\u4e32\u6bd4\u8f83\u7b97\u6cd5\u7684\u5de5\u4f5c\u539f\u7406\u975e\u5e38\u7b80\u5355\uff1b\u5faa\u73af\u6bd4\u8f83\u5b57\u7b26\u4ee3\u7801\uff0c\u5982\u679c\u5b57\u7b26\u4e0d\u76f8\u7b49\u5219\u8fd4\u56de\u7ed3\u679c\u3002 C \u8bed\u8a00\u7684\u793a\u4f8b\u53ef\u4ee5\u5728\u8fd9\u91cc\u627e\u5230\uff1ahttps:\/\/github.com\/gcc-mirror\/gcc\/blob\/master\/libiberty\/memcmp.c 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