{"id":46,"date":"2016-10-28T20:58:40","date_gmt":"2016-10-28T12:58:40","guid":{"rendered":"http:\/\/himmel.tech\/wp\/?p=46"},"modified":"2017-02-14T23:55:36","modified_gmt":"2017-02-14T15:55:36","slug":"%e5%be%ae%e8%bd%af%e6%a0%a1%e6%8b%9b2017","status":"publish","type":"post","link":"https:\/\/himmel.tech\/wp\/?p=46","title":{"rendered":"\u5fae\u8f6f\u6821\u62db2017"},"content":{"rendered":"

\u4eca\u5929\u53c3\u52a0\u4e86\u5fae\u8edf\u7684\u9762\u8a66\uff0c\u4e0d\u5f97\u4e0d\u8aaa\uff0c\u81ea\u5df1\u9084\u662ftoo naive\u3002
\n\u7919\u65bc\u898f\u5b9a\uff0c\u9762\u8a66\u984c\u76ee\u4e0d\u53ef\u7d30\u8aaa\uff0c\u53ea\u597d\u8aaa\u8aaa\u5927\u6982\u3002\u4e0d\u904e\u4e09\u9762\u4e2d\u7684\u4e00\u500b\u984c\u76ee\uff0c\u9762\u8a66\u5b98\u8aaa\u7684\u6211\u4e0d\u662f\u5f88\u7406\u89e3\uff0c\u56e0\u6b64\u7b49\u4e0b\u6703\u8a73\u7d30\u8aaa\u3002<\/p>\n

\u9996\u5148\uff0c\u5fae\u8edf\u7684\u6280\u8853\u9762\uff0c\u6bcf\u4e00\u8f2a\u90fd\u662f\u8981\u5beb\u4ee3\u78bc\u7684\u3002\u9762\u8a66\u5b98\u6703\u6839\u64da\u7c21\u6b77\u7c21\u55ae\u7684\u8ddf\u4f60\u8ac7\u8ac7\uff0c\u7136\u5f8c\u7d66\u4e00\u500b\u984c\u76ee\u958b\u59cb\u5beb\u4ee3\u78bc\u3002
\n\u984c\u76ee\u53ef\u80fd\u6703\u6bd4\u8f03\u7c21\u55ae\uff0c\u4f46\u662f\u6703\u8981\u6c42\u4f60\u8003\u616e\u5f88\u591a\u6bd4\u8f03\u5947\u602a\u7684\u60c5\u6cc1\u3002
\n\u8209\u500b\u4f8b\u5b50\uff0c\u93c8\u8868\u64cd\u4f5c\u7684\u984c\u76ee\uff0c\u6709\u53ef\u80fd\u6703\u8981\u6c42\u4f60\u7684\u7a0b\u5e8f\u80fd\u5920\u8655\u7406\u93c8\u8868\u6210\u74b0\uff0c\u93c8\u8868\u76f8\u4ea4\u7684\u60c5\u6cc1\uff0c\u975e\u5e38\u5641\u5fc3\uff0c\u4f46\u53c8\u4e0d\u662f\u6c92\u6709\u9053\u7406\uff0c\u56e0\u7232\u4f60\u7684\u4ee3\u78bc\u4e0d\u53ef\u80fd\u53ea\u662f\u4f60\u81ea\u5df1\u7528\uff0c\u4f60\u7684\u540c\u4e8b\u3001\u5f8c\u8f29\u53ef\u80fd\u90fd\u6703\u7528\uff0c\u800c\u4ed6\u5011\u5f88\u53ef\u80fd\u4e0d\u6703\u770b\u5230\u4f60\u662f\u600e\u9ebc\u5beb\u7684\uff0c\u56e0\u6b64\u5118\u91cf\u4fdd\u8b49\u4e0d\u6703\u51fa\u932f\uff0c\u54ea\u6015\u662f\u932f\u8aa4\u7684\u8abf\u7528\u4e5f\u4e0d\u6703\u51fa\u932f\uff0c\u78ba\u5be6\u662f\u5f88\u91cd\u8981\u7684\u3002\u9019\u4e5f\u662f\u8207\u8a31\u591a\u5225\u7684\u516c\u53f8\u4e0d\u540c\u7684\u4e00\u9ede\u3002
\n<\/p>\n

\u4e00\u9762<\/h2>\n

\u4e00\u9762\u5927\u6982\u5c31\u662f\u5148\u96a8\u4fbf\u804a\u804a\uff0c\u7136\u5f8c\u958b\u59cb\u5beb\u4ee3\u78bc\u3002\u9806\u5e36\u4e00\u63d0\u9084\u8b93\u6211\u7528\u82f1\u8a9e\u505a\u4e86\u81ea\u6211\u4ecb\u7d39\uff0c\u56e0\u7232\u56db\u9762\u6703\u6709\u6fb3\u5927\u5229\u4e9e\u7684\u8001\u5927\u4f86\u9762\u3002
\n\u96a8\u5f8c\u958b\u59cb\u5beb\u4ee3\u78bc\uff0c\u7d66\u4e86\u4e00\u500b\u93c8\u8868\u7684\u984c\u3002\u7531\u65bc\u4e4b\u524d\u770b\u904e\u4e00\u4e9b\u9762\u7d93\uff0c\u7279\u5225\u6ce8\u610f\u4e86\u7a7a\u93c8\u8868\u7684\u60c5\u6cc1\uff0c\u9084\u6709\u8ddf\u9762\u8a66\u5b98\u78ba\u8a8d\u53c3\u6578\u548c\u8fd4\u56de\u503c\u683c\u5f0f\u7b49\u3002
\n\u4e0d\u904e\u9084\u662f\u5ffd\u7565\u4e86\u93c8\u8868\u76f8\u4ea4\u6642\u7684\u554f\u984c\uff0c\u7576\u93c8\u8868\u76f8\u4ea4\u7684\u6642\u5019\uff0c\u6703\u6307\u4f86\u6307\u53bb\u6307\u6210\u4e00\u500b\u81ea\u74b0\uff0c\u7136\u5f8c\u7a0b\u5e8f\u5c31\u7576\u5728\u90a3\u500b\u5faa\u74b0\u4e0a\u4e86\u3002
\n\u8aaa\u771f\u7684\uff0c\u6b63\u5e38\u4eba\u5beb\u7a0b\u5e8f\u7684\u6642\u5019\uff0c\u8ab0\u6703\u628a\u5169\u500b\u76f8\u4ea4\u7684\u93c8\u8868\u6216\u8005\u6709\u81ea\u74b0\u7684\u93c8\u8868\u585e\u7d66\u4e00\u500b\u51fd\u6578\u554a\u3002
\n\u4e0d\u904e\u5728\u5fae\u8edf\uff0c\u9019\u986f\u7136\u662f\u4e0d\u884c\u7684\uff0c\u56e0\u7232\u4f60\u5beb\u7684\u51fd\u6578\u4e0d\u50c5\u7d66\u4f60\u81ea\u5df1\u7528\uff0c\u9084\u6703\u7d66\u5225\u4eba\u7528\u3002\u842c\u4e00\u5225\u4eba\u72af\u8822\u7d66\u4f60\u50b3\u500b\u5947\u602a\u7684\u93c8\u8868\u9032\u4f86\uff0c\u4e5f\u4e0d\u662f\u4e0d\u53ef\u80fd\u7684\u3002
\n\u597d\u5427\uff0c\u8d95\u7dca\u6539\u3002\u756b\u500b\u5c0f\u5716\u6a21\u64ec\u4e00\u4e0b\uff0c\u7136\u5f8c\u6539\u4e86\u904e\u4f86\u3002
\n\u9762\u8a66\u7ba1\u5c0d\u7740\u6211\u975e\u5e38ugly\u7684\u7a0b\u5e8f\u770b\u4e86\u4e00\u773c\uff0c\u7136\u5f8c\u5df4\u62c9\u5df4\u62c9\u561f\u56d4\u4e86\u4e00\u9663\u5b50\u9019\u88cf\u8df3\u90a3\u88cf\uff0c\u5982\u679c\u5565\u6a23\u6709\u548b\u6a23\u4e4b\u5f8c\uff0c\u8aaa\uff1a\u54e6\uff0c\u597d\u5427\uff0c\u9019\u7a2e\u60c5\u6cc1\u4e0b\u96d6\u7136\u770b\u8d77\u4f86\u96d6\u7136\u4e0d\u592a\u5c0d\uff0c\u4e0d\u904e\u4e0b\u4e00\u6b21\u8fed\u4ee3\u53c8\u8abf\u6574\u56de\u4f86\u4e86\u3002\uff08\u6211\u5beb\u7a0b\u5e8f\u7684\u90fd\u4e0d\u77e5\u9053\u4ed6\u5728\u8aaa\u4ec0\u9ebc\u2026\u2026\uff09
\n\u7e3d\u4e4b\uff0c\u901a\u904e\u4e86\u3002<\/p>\n

\u4e8c\u9762<\/h2>\n

\u4e8c\u9762\u5148\u662f\u96a8\u4fbf\u9592\u804a\u4e86\u4e00\u6703\uff0c\u4e0d\u904e\u9762\u8a66\u5b98\u8b1b\u7684\u6211\u90fd\u4e0d\u662f\u5f88\u61c2\uff0c\u4ec0\u9ebc\u8edf\u4ef6\u958b\u767c\u6a21\u578b\u3001\u654f\u6377\u958b\u767c\u4e4b\u985e\u7684\u3002
\n\u4e0d\u904e\u4e8c\u9762\u51fa\u7684\u984c\u5c31\u6bd4\u8f03\u7c21\u55ae\u4e86\uff0c\u4ee5\u524d\u521d\u4e2d\u7684\u6642\u5019\u505a\u904e\u3002\u6211\u7167\u7740\u521d\u4e2d\u7684\u505a\u6cd5\u5beb\u4e86\u4e00\u904d\uff0c\u7576\u7136\u9019\u500b\u505a\u6cd5\u662f\u6c92\u6709\u554f\u984c\u7684\uff0c\u4e0d\u904e\u9762\u8a66\u5b98\u4f3c\u4e4e\u4e0d\u5982\u4e0a\u4e00\u500b\u9762\u8a66\u5b98\u201c\u8eab\u7d93\u767e\u6230\u898b\u5f97\u591a\u4e86\u201d\uff0c\u7d66\u6211\u8209\u4e86\u4e00\u500b\u53cd\u4f8b\uff0c\u7136\u800c\u9019\u500b\u53cd\u4f8b\u5728\u6211\u7684\u7a0b\u5e8f\u4e2d\u662f\u4e0d\u53ef\u80fd\u51fa\u73fe\u7684\u3002<\/p>\n

\u7136\u5f8c\u554f\u6211\u5982\u679c\u8b93\u6211\u4f86\u6e2c\u8a66\uff0c\u6211\u6703\u600e\u9ebc\u6e2c\u8a66\u3002
\n\u9996\u5148\u6211\u7d66\u4e86\u5e7e\u500b\u908a\u754c\u6e2c\u8a66\uff0c\u7136\u5f8c\u9762\u8a66\u5b98\u63d0\u793a\u6211\u5e38\u898f\u6e2c\u8a66\u7684\u60c5\u6cc1\u3002\u9019\u500b\u6211\u5c31\u4e0d\u662f\u5f88\u6e05\u695a\u4e86\uff0c\u6211\u53ea\u597d\u8aaa\u7528\u4e00\u500b\u975e\u5e38\u6a38\u7d20\u975e\u5e38\u66b4\u529b\u7684\u505a\u6cd5\u751f\u6210\u4e00\u7d44\u7d55\u5c0d\u6c92\u554f\u984c\u7684\u6e2c\u8a66\u6578\u64da\uff0c\u7136\u5f8c\u8f38\u5165\u7a0b\u5e8f\u4e2d\u6e2c\u8a66\u3002<\/p>\n

\u4e09\u9762<\/h2>\n

\u4e09\u9762\u9996\u5148\u804a\u4e86\u804a\u7c21\u6b77\u4e0a\u7684\u9805\u76ee\uff0c\u6bd4\u5982\u8aaa\u4e4b\u524d\u6211\u5beb\u904e\u7684\u4e00\u500b\u975e\u5e38\u7c21\u964b\u7684\u7ba1\u7406\u7a0b\u5e8f\u3002\u5148\u662f\u554f\u4e86\u4e00\u4e9b\u7d30\u7bc0\uff0c\u7136\u5f8c\u62cb\u51fa\u4e00\u500b\u554f\u984c\uff1a\u4f60\u9019\u500b\u73fe\u5728\u662f\u55ae\u6a5f\u7684\uff0c\u5982\u679c\u5b83\u8981\u4e0a\u7dda\uff0c\u4f60\u89ba\u5f97\u9700\u8981\u54ea\u4e9b\u6539\u9032\uff1f
\n\u597d\u5427\uff0c\u5176\u5be6\u6211\u6839\u672c\u6c92\u6709\u76f8\u95dc\u7d93\u9a57\uff0c\u5c31\u958b\u59cb\u626f\uff0c\u6578\u64da\u5eab\u4e0aSQL\u554a\uff0c\u96c6\u7fa3\u554a\u4e82\u4e03\u516b\u7cdf\u7684\u3002
\n\u4e4b\u5f8c\u5beb\u7a0b\u5e8f\uff0c\u5927\u6982\u662f\u4e00\u500b\u985e\u4f3c\u6a21\u5f0f\u5339\u914d\u7684\u554f\u984c\u3002\u7531\u65bc\u6211\u6c92\u8ddf\u9762\u8a66\u5b98\u8a0e\u8ad6\u6e05\u695a\u771f\u6b63\u7684\u5339\u914d\u610f\u5716\uff0c\u5beb\u51fa\u4e86\u4e00\u500b\u932f\u8aa4\u7684\u5339\u914d\u7a0b\u5f0f\u3002
\n\u4e0d\u904e\u9762\u8a66\u5b98\u975e\u5e38kind\uff0c\u9084\u662f\u63a5\u7740\u9019\u500b\u932f\u8aa4\u7684\u601d\u8def\u9032\u884c\u8a0e\u8ad6\u3002<\/p>\n

\u5728\u6b64\u6211\u628a\u554f\u984c\u91cd\u8ff0\u4e00\u4e0b\uff0c\u5373
\n\u5169\u500b\u7b49\u9577\u7684\u5b57\u7b26\u4e32\uff0c\u80fd\u5426\u6309\u7167\u4f4d\u7f6e\u4e00\u4e00\u5c0d\u61c9\u7684\u5728\u5169\u500b\u96c6\u5408\u9593\u5efa\u7acb\u4e00\u500b\u96d9\u5c04\u95dc\u4fc2\u3002<\/p>\n

\u986f\u7136\uff0c\u6211\u7684\u601d\u8def\u662f\u5efa\u7acb\u6b63\u53cd\u5169\u500b\u6620\u5c04\u8868\uff0c\u7136\u5f8c\u904d\u6b77\u5b57\u7b26\u4e32\uff0c\u5982\u679c\u8868\u4e2d\u7121\u8a18\u9304\uff0c\u5247\u5c07\u9019\u500b\u96d9\u5c04\u95dc\u4fc2\u8a18\u9304\u4e0b\u4f86\uff0c\u5982\u679c\u6709\u8a18\u9304\u4e14\u885d\u7a81\uff0c\u8aaa\u660e\u5931\u6557\u4e86\u3002<\/p>\n

\u5c0d\u65bc\u6bcf\u6b21\u67e5\u8a62\u4f86\u8b1b\uff0c\u9700\u8981\u67e5\u8a62\u5169\u500b\u8868\u662f\u5426\u7232\u7a7a\uff0c\u5982\u679c\u4e0d\u7232\u7a7a\u662f\u5426\u5339\u914d\uff0c\u56e0\u6b64\u6642\u9593\u8907\u96dc\u5ea6\u5728o(4)\uff1b
\n\u5c0d\u65bc\u6bcf\u6b21\u589e\u52a0\u8a18\u9304\uff0c\u53ea\u9700\u8981\u5c07\u5c0d\u61c9\u7684\u4f4d\u7f6e\u5beb\u4e0a\u5c0d\u61c9\u7684\u503c\uff0c\u56e0\u6b64\u6642\u9593\u8907\u96dc\u5ea6\u5728o(2)\uff1b
\n\u56e0\u6b64\u5c0d\u65bc\u9577\u5ea6\u7232n\u7684\u5b57\u7b26\u4e32\uff0c\u6642\u9593\u8907\u96dc\u5ea6\u61c9\u8a72\u7232O(n)\uff0c\u5e38\u6578\u72326\u3002<\/p>\n

\u4e0d\u904e\u9762\u8a66\u7ba1\u554f\u662f\u5426\u53ef\u4ee5\u512a\u5316\uff1f
\nExcuse me? \u5df2\u7d93O(n)\u4e86\u6211\u8981\u600e\u9ebc\u512a\u5316\uff1f\uff01\uff01<\/p>\n

\u9762\u8a66\u5b98\u63d0\u793a\u6211\u8aaa\uff0c\u6211\u7684\u4e00\u500b\u93c8\u8868\u662f\u591a\u9918\u7684\uff0c\u6709\u4e00\u7a2e\u6578\u64da\u7d50\u69cb\uff0c\u53ef\u4ee5\u8a18\u9304<x, y><\/code>\uff0c\u65e2\u53ef\u4ee5\u4ee5x\u7232\u95dc\u9375\u5b57\u67e5\u8a62\u5339\u914d\u7684pair\uff0c\u4e5f\u53ef\u4ee5\u4ee5y\u7232\u95dc\u9375\u5b57\u67e5\u8a62pair\u3002
\n\u53ef\u662f\u9019\u7a2e\u6771\u897f\uff0c\u55ae\u67e5\u8a62\u7684\u6642\u5019\u6642\u9593\u8907\u96dc\u5ea6\u6703\u662f\u5e38\u6578\uff1f<\/p>\n

\u56e0\u6b64\u6211\u662f\u4e0d\u592a\u7406\u89e3\u7684\u2026\u2026\u4e0d\u904e\uff0c\u7406\u89e3\u932f\u4e86\u9762\u8a66\u5b98\u7684\u610f\u5716\uff0c\u78ba\u5be6\u662f\u6211\u81ea\u5df1\u7684\u934b\u3002<\/p>\n

Normal End<\/h2>\n

\u65bc\u662f\u5728\u4e09\u9762\u904e\u5f8c\uff0c\u88abHR\u59d0\u59d0\u53eb\u51fa\u53bb\u8aaa\uff0c\u56e0\u7232\u9762\u8a66coding\u7684\u6642\u5019\u8868\u73fe\u4e0d\u592a\u597d\uff0c\u4e3b\u8981\u662f\u4e0d\u50cf\u6625x\u548c\u96ea\u83dc\u90a3\u6a23\u7684\u719f\u7df4\uff08\u6253\u6b7b\uff09\uff0c\u56e0\u6b64\u7121\u6cd5\u7d66\u6211\u5b89\u6392\u56db\u9762\uff0c\u5c31\u56de\u53bb\u4e86\u3002<\/p>\n

\u597d\u5427\uff0c\u4e0d\u80fd\u7b97Bad End\uff0c\u6700\u591a\u7b97\u662f\u500bNormal End\u3002\u60f3\u60f3\u770b\uff0c\u6211\u4e16\u4e00\u5927\u5927\u7d048\u4eba\u53bb\u9762\u8a66\uff0c\u9664\u4e86\u6211\u4e00\u500b\u4e0d\u662fCS\u7684\u672c\u79d1\u751f\uff0c\u9084\u6709\u4e00\u500bCS\u7684\u672c\u79d1\u751f\u5916\uff0c\u5176\u9918\u90fd\u662fCS\u7684\u7814\u7a76\u751f\u3002\u9084\u6709\u5169\u500bEagle\u5be6\u9a57\u5ba4\u7684\uff0c\u8eab\u7d93\u767e\u6230\u898b\u7684\u591a\u4e86\u554a\uff0c\u600e\u9ebc\u6bd4\u561b\u3002<\/p>\n

\u4e0d\u904e\u81f3\u5c11\u4e5f\u4e0d\u8667\uff0c\u591a\u5c11\u7b97\u662f\u898b\u8b58\u4e86\u4e00\u4e0b\u5fae\u8edf\uff0c\u4ee5\u53ca\u5fae\u8edf\u7684\u505a\u4e8b\u98a8\u683c\u3002\u4e0d\u5f97\u4e0d\u8aaa\uff0c\u5fae\u8edf\u80fd\u505a\u9019\u9ebc\u5f37\u4e0d\u662f\u6c92\u6709\u9053\u7406\u7684\uff0c\u8ddf\u5176\u5f37\u5927\u7684\u7ba1\u7406\u662f\u5206\u4e0d\u958b\u7684\u3002<\/p>\n

\u2014FIN\u2014<\/p>\n","protected":false},"excerpt":{"rendered":"

\u4eca\u5929\u53c3\u52a0\u4e86\u5fae\u8edf\u7684\u9762\u8a66\uff0c\u4e0d\u5f97\u4e0d\u8aaa\uff0c\u81ea\u5df1\u9084\u662ftoo naive\u3002 \u7919\u65bc\u898f\u5b9a\uff0c\u9762\u8a66\u984c\u76ee\u4e0d\u53ef\u7d30\u8aaa\uff0c\u53ea\u597d\u8aaa\u8aaa\u5927\u6982\u3002\u4e0d\u904e\u4e09 … <\/p>\n

\u7ee7\u7eed\u9605\u8bfb\u201c\u5fae\u8f6f\u6821\u62db2017\u201d<\/span><\/a><\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"jetpack_post_was_ever_published":false,"_jetpack_newsletter_access":"","_jetpack_dont_email_post_to_subs":true,"_jetpack_newsletter_tier_id":0,"_jetpack_memberships_contains_paywalled_content":false,"_jetpack_memberships_contains_paid_content":false,"footnotes":"","jetpack_publicize_message":"","jetpack_publicize_feature_enabled":true,"jetpack_social_post_already_shared":false,"jetpack_social_options":{"image_generator_settings":{"template":"highway","default_image_id":0,"font":"","enabled":false},"version":2}},"categories":[1],"tags":[],"class_list":["post-46","post","type-post","status-publish","format-standard","hentry","category-uncategorized"],"jetpack_publicize_connections":[],"jetpack_featured_media_url":"","jetpack_sharing_enabled":true,"jetpack_shortlink":"https:\/\/wp.me\/p83CFH-K","_links":{"self":[{"href":"https:\/\/himmel.tech\/wp\/index.php?rest_route=\/wp\/v2\/posts\/46","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/himmel.tech\/wp\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/himmel.tech\/wp\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/himmel.tech\/wp\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/himmel.tech\/wp\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=46"}],"version-history":[{"count":5,"href":"https:\/\/himmel.tech\/wp\/index.php?rest_route=\/wp\/v2\/posts\/46\/revisions"}],"predecessor-version":[{"id":86,"href":"https:\/\/himmel.tech\/wp\/index.php?rest_route=\/wp\/v2\/posts\/46\/revisions\/86"}],"wp:attachment":[{"href":"https:\/\/himmel.tech\/wp\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=46"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/himmel.tech\/wp\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=46"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/himmel.tech\/wp\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=46"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}