评估算法及算法的时间复杂度

[[{"txt": "\u8bc4\u4f30\u7b97\u6cd5\u53ca\u7b97\u6cd5\u7684\u65f6\u95f4\u590d\u6742\u5ea6"}], [{"txt": ["\u65b9\u6cd5/\u6b65\u9aa4"]}, {"txt": "\u6587\u7ae0\u5bfc\u8bfb\u3010\u5bf9\u4e8e\u4e00\u4e2a\u7ed9\u5b9a\u7684\u7b97\u6cd5\uff0c\u901a\u5e38\u8981\u8bc4\u4f30\u5176\u6b63\u786e\u6027\u548c\u8fd0\u884c\u6548\u7387\u7684\u9ad8\u4f4e\u3002\u7b97\u6cd5\u7684\u6b63\u786e\u6027\u8bc4\u4f30\u4e0d\u5728\u672c\u6587\u8303\u56f4\u4e4b\u5185\uff0c\u672c\u6587\u4e3b\u8981\u8ba8\u8bba\u4ece\u7b97\u6cd5\u7684\u65f6\u95f4\u590d\u6742\u5ea6\u7279\u6027\u53bb\u8bc4\u4f30\u7b97\u6cd5\u7684\u4f18\u52a3\u3002\u3011\u7a0b\u5e8f\u662f\u7528\u6765\u89e3\u51b3\u95ee\u9898\u7684\uff0c\u662f\u7531\u591a\u4e2a\u6b65\u9aa4\u6216\u8fc7\u7a0b\u7ec4\u6210\u7684\uff0c\u8fd9\u4e9b\u6b65\u9aa4\u548c\u8fc7\u7a0b\u5c31\u662f\u89e3\u51b3\u95ee\u9898\u7684\u7b97\u6cd5\u3002\u89e3\u51b3\u4e00\u4e2a\u95ee\u9898\u6709\u591a\u79cd\u65b9\u6cd5\uff0c\u4e5f\u5c31\u6709\u591a\u79cd\u7b97\u6cd5\u3002\u6bcf\u4e00\u79cd\u7b97\u6cd5\u90fd\u53ef\u4ee5\u8fbe\u5230\u89e3\u51b3\u95ee\u9898\u7684\u76ee\u7684\uff0c\u4f46\u82b1\u8d39\u7684\u6210\u672c\u548c\u65f6\u95f4\u4e0d\u5c3d\u76f8\u540c\uff0c\u4ece\u8282\u7ea6\u6210\u672c\u548c\u65f6\u95f4\u7684\u89d2\u5ea6\u8003\u8651\uff0c\u9700\u8981\u627e\u51fa\u6700\u4f18\u7b97\u6cd5\u3002\u90a3\u4e48\uff0c\u5982\u4f55\u8861\u91cf\u4e00\u4e2a\u7b97\u6cd5\u7684\u597d\u574f\u5462\uff1f\u663e\u7136\uff0c\u9009\u7528\u7684\u7b97\u6cd5\u5e94\u8be5\u662f\u6b63\u786e\u7684\uff08\u7b97\u6cd5\u7684\u6b63\u786e\u6027\u4e0d\u5728\u6b64\u8bba\u8ff0\uff09\u3002\u9664\u6b64\u4e4b\u5916\uff0c\u901a\u5e38\u6709\u4e09\u4e2a\u65b9\u9762\u7684\u8003\u8651\uff1a\uff081\uff09\u7b97\u6cd5\u5728\u6267\u884c\u8fc7\u7a0b\u4e2d\u6240\u6d88\u8017\u7684\u65f6\u95f4\uff1b\uff082\uff09\u7b97\u6cd5\u5728\u6267\u884c\u8fc7\u7a0b\u4e2d\u6240\u5360\u8d44\u6e90\u7684\u5927\u5c0f\uff0c\u4f8b\u5982\uff0c\u5360\u7528\u5185\u5b58\u7a7a\u95f4\u7684\u5927\u5c0f\uff1b\uff083\uff09\u7b97\u6cd5\u7684\u6613\u7406\u89e3\u6027\u3001\u6613\u5b9e\u73b0\u6027\u548c\u6613\u9a8c\u8bc1\u6027\u7b49\u7b49\u3002\u8861\u91cf\u4e00\u4e2a\u7b97\u6cd5\u7684\u597d\u574f\uff0c\u53ef\u4ee5\u901a\u8fc7\u524d\u9762\u63d0\u51fa\u7684\u4e09\u4e2a\u65b9\u9762\u8fdb\u884c\u7efc\u5408\u8bc4\u4f30\u3002\u4ece\u591a\u4e2a\u5019\u9009\u7b97\u6cd5\u4e2d\u627e\u51fa\u8fd0\u884c\u65f6\u95f4\u77ed\u3001\u8d44\u6e90\u5360\u7528\u5c11\u3001\u6613\u7406\u89e3\u3001\u6613\u5b9e\u73b0\u7684\u7b97\u6cd5\u3002\u7136\u800c\uff0c\u73b0\u5b9e\u60c5\u51b5\u5374\u4e0d\u5c3d\u4eba\u610f\u3002\u5f80\u5f80\u662f\uff0c\u4e00\u4e2a\u770b\u8d77\u6765\u5f88\u7b80\u4fbf\u7684\u7b97\u6cd5\uff0c\u5176\u8fd0\u884c\u65f6\u95f4\u8981\u6bd4\u4e00\u4e2a\u5f62\u5f0f\u4e0a\u590d\u6742\u7684\u7b97\u6cd5\u6162\u7684\u591a\uff1b\u800c\u4e00\u4e2a\u8fd0\u884c\u65f6\u95f4\u8f83\u77ed\u7684\u7b97\u6cd5\u5f80\u5f80\u5360\u7528\u8f83\u591a\u7684\u8d44\u6e90\u3002\u56e0\u6b64\uff0c\u5728\u4e0d\u540c\u60c5\u51b5\u4e0b\u9700\u8981\u9009\u62e9\u4e0d\u540c\u7684\u7b97\u6cd5\u3002\u5728\u5b9e\u65f6\u7cfb\u7edf\u4e2d\uff0c\u5bf9\u7cfb\u7edf\u54cd\u5e94\u65f6\u95f4\u8981\u6c42\u9ad8\uff0c\u5219\u5c3d\u91cf\u9009\u7528\u6267\u884c\u65f6\u95f4\u5c11\u7684\u7b97\u6cd5\uff1b\u5f53\u6570\u636e\u5904\u7406\u91cf\u5927\uff0c\u800c\u5b58\u50a8\u7a7a\u95f4\u8f83\u5c11\u65f6\uff0c\u5219\u5c3d\u91cf\u9009\u7528\u8282\u7701\u7a7a\u95f4\u7684\u7b97\u6cd5\u3002\u672c\u6587\u4e3b\u8981\u8ba8\u8bba\u7b97\u6cd5\u7684\u65f6\u95f4\u7279\u6027\uff0c\u5e76\u7ed9\u51fa\u7b97\u6cd5\u5728\u65f6\u95f4\u590d\u6742\u5ea6\u4e0a\u7684\u5ea6\u91cf\u6307\u6807\u3002\u4e00\u4e2a\u7b97\u6cd5\u5728\u6267\u884c\u8fc7\u7a0b\u4e2d\u6240\u6d88\u8017\u7684\u65f6\u95f4\u53d6\u51b3\u4e8e\u4e0b\u9762\u7684\u56e0\u7d20\uff1a\uff081\uff09\u7b97\u6cd5\u6240\u9700\u6570\u636e\u8f93\u5165\u7684\u65f6\u95f4\uff1b\uff082\uff09\u7b97\u6cd5\u7f16\u8bd1\u4e3a\u53ef\u6267\u884c\u7a0b\u5e8f\u7684\u65f6\u95f4\uff1b\uff083\uff09\u8ba1\u7b97\u673a\u6267\u884c\u6bcf\u6761\u6307\u4ee4\u6240\u9700\u7684\u65f6\u95f4\uff1b\uff084\uff09\u7b97\u6cd5\u8bed\u53e5\u91cd\u590d\u6267\u884c\u7684\u6b21\u6570\u3002\u5176\u4e2d\uff081\uff09\u4f9d\u8d56\u4e8e\u8f93\u5165\u8bbe\u5907\u7684\u6027\u80fd\uff0c\u82e5\u662f\u8131\u673a\u8f93\u5165\uff0c\u5219\u8f93\u5165\u6570\u636e\u7684\u65f6\u95f4\u53ef\u4ee5\u5ffd\u7565\u4e0d\u8ba1\u3002\uff082\uff09\uff083\uff09\u53d6\u51b3\u4e8e\u8ba1\u7b97\u673a\u672c\u8eab\u6267\u884c\u7684\u901f\u5ea6\u548c\u7f16\u8bd1\u7a0b\u5e8f\u7684\u6027\u80fd\u3002\u56e0\u6b64\uff0c\u4e60\u60ef\u4e0a\u5c06\u7b97\u6cd5\u8bed\u53e5\u91cd\u590d\u6267\u884c\u7684\u6b21\u6570\u4f5c\u4e3a\u7b97\u6cd5\u7684\u65f6\u95f4\u91cf\u5ea6\u3002\u4f8b\u5982\uff1a"}, {"img": ["https://exp-picture.cdn.bcebos.com/8974c38a59de45076d5614c45e413a8ca70885ef.m2m?x-bce-process=image%2Fresize%2Cm_lfit%2Cw_500%2Climit_1"]}, {"txt": "add\u51fd\u6570\u4ec5\u5305\u542b\u4e00\u6761\u8bed\u53e5\uff0c\u6267\u884c\u6b21\u6570\u4e3a1\u6b21\uff1bmadd\u51fd\u6570\u5305\u542bn\u6b21\u7684\u5355\u91cdfor\u5faa\u73af\uff0c\u6bcf\u6b21\u5faa\u73af\u90fd\u6267\u884cx=x+1\u8bed\u53e5\uff0c\u56e0\u6b64\u6267\u884c\u6b21\u6570\u4e3an\u6b21\uff1bloopadd\u51fd\u6570\u5305\u542bn\u6b21\u7684\u53cc\u91cd\u5faa\u73af\uff0c\u5728\u7b2c\u4e8c\u5c42\u5faa\u73af\u6267\u884cx=x+1\u8bed\u53e5\uff0c\u56e0\u6b64\u6267\u884c\u6b21\u6570\u4e3an*n\u6b21\uff0c\u5373n^2\u6b21\u3002\u4e0a\u9762\u7684\u4f8b\u5b50\u5e76\u6ca1\u6709\u628a\u5faa\u73af\u672c\u8eab\u6267\u884c\u7684\u6b21\u6570\u7b97\u8fdb\u53bb\uff0c\u4e0b\u9762\u7ed9\u51fa2\u4e2a\u6267\u884c\u6b21\u6570\u8ba1\u7b97\u8f83\u4e3a\u7cbe\u786e\u7684\u4f8b\u5b50\u3002"}, {"img": ["https://exp-picture.cdn.bcebos.com/3bcdb808a50f94fcbcdbb77a4cf88a775cddfcef.m2m?x-bce-process=image%2Fresize%2Cm_lfit%2Cw_500%2Climit_1"]}, {"txt": "\u77e9\u9635\u76f8\u52a0\u7684\u6267\u884c\u6b21\u6570\u4e3a2n^2+2n+2\u3002\u4e00\u822c\u60c5\u51b5\u4e0b\uff0cn\u4e3a\u95ee\u9898\u89c4\u6a21\uff08\u5927\u5c0f\uff09\u7684\u91cf\u5ea6\uff0c\u5982\u6570\u7ec4\u7684\u957f\u5ea6\u3001\u77e9\u9635\u7684\u9636\u3001\u56fe\u4e2d\u7684\u9876\u70b9\u6570\u7b49\u7b49\u3002\u5bf9\u4e8e\u524d\u9762add\u51fd\u6570\u6765\u8bf4\uff0c\u95ee\u9898\u89c4\u6a21\u91cf\u5ea6\u4e3a\u5e38\u6570\uff081\uff09\uff1b\u5bf9\u4e8e\u6570\u7ec4\u6392\u5e8f\u95ee\u9898\u6765\u8bf4\uff0c\u95ee\u9898\u89c4\u6a21\u91cf\u5ea6\u4e3a\u8f93\u5165\u6570\u7ec4\u7684\u957f\u5ea6\uff08\u8bb0\u4e3an\uff09\uff1b\u5bf9\u4e8en\u9636\u77e9\u9635\u76f8\u52a0\u6765\u8bf4\uff0c\u95ee\u9898\u89c4\u6a21\u91cf\u5ea6\u4e3a\u77e9\u9635\u9636\u6570\u7684\u5e73\u65b9\uff08\u8bb0\u4e3an^2\uff09\u3002\u4e3a\u4e86\u7ed9\u51fa\u7b97\u6cd5\u901a\u7528\u7684\u65f6\u95f4\u91cf\u5ea6\uff0c\u7528\u6570\u5b66\u6982\u5ff5\u6765\u63cf\u8ff0\u7b97\u6cd5\u7684\u6267\u884c\u6b21\u6570\uff0c\u53ef\u4ee5\u628a\u4e00\u4e2a\u7b97\u6cd5\u4e2d\u8bed\u53e5\u7684\u6267\u884c\u6b21\u6570\u79f0\u4e3a\u8bed\u53e5\u9891\u5ea6\u6216\u65f6\u95f4\u9891\u5ea6\uff0c\u8bb0\u4e3aT(n)\u3002\u5f53\u95ee\u9898\u89c4\u6a21n\u4e0d\u65ad\u53d8\u5316\u65f6\uff0c\u65f6\u95f4\u9891\u5ea6T(n)\u4e5f\u4f1a\u4e0d\u65ad\u53d8\u5316\uff0c\u6211\u4eec\u9700\u8981\u8bc4\u4f30\u5f53n\u4e0d\u65ad\u53d8\u5316\u65f6\uff0c\u65f6\u95f4\u9891\u5ea6T(n)\u7684\u53d8\u5316\u89c4\u5f8b\u3002\u82e5\u6709\u67d0\u4e2a\u8f85\u52a9\u51fd\u6570f(n)\uff0c\u5f53n\u8d8b\u5411\u4e8e\u65e0\u7a77\u5927\u65f6\uff0c\u5982\u679cT(n)/ f(n)\u7684\u6781\u9650\u4e3a\u4e0d\u7b49\u4e8e\u96f6\u7684\u5e38\u6570\uff0c\u5219\u8ba4\u4e3aT(n)\u4e0ef(n)\u662f\u540c\u91cf\u7ea7\u7684\u51fd\u6570\uff0c\u8bb0\u4f5c\uff1aT(n) =O(f(n))\uff0cO(f(n))\u79f0\u4e3a\u7b97\u6cd5\u7684\u6e10\u8fdb\u65f6\u95f4\u590d\u6742\u5ea6\uff0c\u7b80\u79f0\u65f6\u95f4\u590d\u6742\u5ea6\u3002\u6e10\u8fdb\u65f6\u95f4\u590d\u6742\u5ea6\u8868\u793a\u7684\u610f\u4e49\u662f\uff1a\uff081\uff09\u5728\u8f83\u590d\u6742\u7684\u7b97\u6cd5\u4e2d\uff0c\u8fdb\u884c\u7cbe\u786e\u5206\u6790\u662f\u975e\u5e38\u590d\u6742\u7684\uff1b\uff082\uff09\u4e00\u822c\u6765\u8bf4\uff0c\u6211\u4eec\u5e76\u4e0d\u5173\u5fc3T(n)\u7684\u7cbe\u786e\u5ea6\u91cf\uff0c\u800c\u53ea\u662f\u5173\u5fc3\u5176\u91cf\u7ea7\u3002T (n) = O(f (n)) \u8868\u793a\u5b58\u5728\u4e00\u4e2a\u5e38\u6570C\uff0c\u5f53n\u8d8b\u4e8e\u6b63\u65e0\u7a77\u5927\u65f6\uff0c\u603b\u6709T (n) \u2264 C * f(n)\uff0c\u5176\u610f\u4e49\u662fT(n)\u5728n\u8d8b\u4e8e\u6b63\u65e0\u7a77\u5927\u65f6\u8ddff(n)\u57fa\u672c\u63a5\u8fd1\uff0c\u56e0\u6b64\u5b8c\u5168\u53ef\u4ee5\u7528f(n)\u6765\u8868\u793aT(n)\u3002O(f (n))\u901a\u5e38\u53d6\u6267\u884c\u6b21\u6570\u4e2d\u6700\u9ad8\u6b21\u65b9\u6216\u6700\u5927\u6307\u6570\u90e8\u5206\u7684\u9879\u3002\u4f8b\u5982\uff1a\uff081\uff09\u9635\u5217\u5143\u7d20\u76f8\u52a0\u4e3a2n+3 = O(n)\uff082\uff09\u77e9\u9635\u76f8\u52a0\u4e3a2n^2+2n+1 = O(n^2)\uff083\uff09\u77e9\u9635\u76f8\u4e58\u4e3a2n^3+4n^2+2n+2 = O(n^3)\u5728\u5404\u79cd\u4e0d\u540c\u7684\u7b97\u6cd5\u4e2d\uff0c\u82e5\u7b97\u6cd5\u8bed\u53e5\u7684\u6267\u884c\u6b21\u6570\u4e3a\u5e38\u6570\uff0c\u5219\u7b97\u6cd5\u7684\u65f6\u95f4\u590d\u6742\u5ea6\u4e3aO(1)\uff0c\u6309\u6570\u91cf\u7ea7\u9012\u589e\u6392\u5217\uff0c\u5e38\u89c1\u7684\u65f6\u95f4\u590d\u6742\u5ea6\u91cf\u6709\uff1a\uff081\uff09O(1)\uff1a\u5e38\u91cf\u9636\uff0c\u8fd0\u884c\u65f6\u95f4\u4e3a\u5e38\u91cf\uff082\uff09O(logn)\uff1a\u5bf9\u6570\u9636\uff0c\u5982\u4e8c\u5206\u641c\u7d22\u7b97\u6cd5\uff083\uff09O(n)\uff1a\u7ebf\u6027\u9636\uff0c\u5982n\u4e2a\u6570\u5185\u627e\u6700\u5927\u503c\uff084\uff09O(nlogn)\uff1a\u5bf9\u6570\u9636\uff0c\u5982\u5feb\u901f\u6392\u5e8f\u7b97\u6cd5\uff085\uff09O(n^2)\uff1a\u5e73\u65b9\u9636\uff0c\u5982\u9009\u62e9\u6392\u5e8f\uff0c\u5192\u6ce1\u6392\u5e8f\uff086\uff09O(n^3)\uff1a\u7acb\u65b9\u9636\uff0c\u5982\u4e24\u4e2an\u9636\u77e9\u9635\u7684\u4e58\u6cd5\u8fd0\u7b97\uff087\uff09O(2^n)\uff1a\u6307\u6570\u9636\uff0c\u5982n\u4e2a\u5143\u7d20\u96c6\u5408\u7684\u6240\u6709\u5b50\u96c6\u7684\u7b97\u6cd5\uff088\uff09O(n!)\uff1a\u9636\u4e58\u9636\uff0c\u5982n\u4e2a\u5143\u7d20\u5168\u90e8\u6392\u5217\u7684\u7b97\u6cd5\u4e0b\u56fe\u7ed9\u51fa\u4e86\u968f\u7740n\u7684\u53d8\u5316\uff0c\u4e0d\u540c\u91cf\u7ea7\u7684\u65f6\u95f4\u590d\u6742\u5ea6\u53d8\u5316\u66f2\u7ebf\u3002"}, {"img": ["https://exp-picture.cdn.bcebos.com/8b3643dd884ce54adc70cb5ba3066b0193ddf7ef.m2m?x-bce-process=image%2Fresize%2Cm_lfit%2Cw_500%2Climit_1"]}, {"txt": "\u56fe1 \u65f6\u95f4\u590d\u6742\u5ea6\u53d8\u5316\u66f2\u7ebf\u56fe\u8bc4\u4f30\u7b97\u6cd5\u65f6\u95f4\u590d\u6742\u5ea6\u7684\u5177\u4f53\u6b65\u9aa4\u662f\uff1a\uff081\uff09\u627e\u51fa\u7b97\u6cd5\u4e2d\u91cd\u590d\u6267\u884c\u6b21\u6570\u6700\u591a\u7684\u8bed\u53e5\u7684\u9891\u5ea6\u6765\u4f30\u7b97\u7b97\u6cd5\u7684\u65f6\u95f4\u590d\u6742\u5ea6\uff1b\uff082\uff09\u4fdd\u7559\u7b97\u6cd5\u7684\u6700\u9ad8\u6b21\u5e42\uff0c\u5ffd\u7565\u6240\u6709\u4f4e\u6b21\u5e42\u548c\u9ad8\u6b21\u5e42\u7684\u7cfb\u6570\uff1b\uff083\uff09\u5c06\u7b97\u6cd5\u6267\u884c\u6b21\u6570\u7684\u6570\u91cf\u7ea7\u653e\u5165\u5927\u039f\u8bb0\u53f7\u4e2d\u3002\u4f8b\u5982\uff0c\u4e0b\u5217\u4e09\u4e2a\u7b80\u5355\u7684\u7a0b\u5e8f\u6bb5\uff1a\u5728\u7a0b\u5e8f\u6bb5\uff08a\uff09\u4e2d\uff0c\u8bed\u53e5x=x+1\u4e0d\u5728\u4efb\u4f55\u4e00\u4e2a\u5faa\u73af\u4f53\u5185\uff0c\u5219\u5b83\u7684\u65f6\u95f4\u9891\u5ea6\u4e3a1\uff0c\u5176\u6267\u884c\u65f6\u95f4\u662f\u4e2a\u5e38\u91cf\uff1b\u800c\uff08b\uff09\u4e2d\uff0c\u540c\u4e00\u8bed\u53e5\u88ab\u91cd\u590d\u6267\u884cn\u6b21\uff0c\u5176\u65f6\u95f4\u9891\u5ea6\u4e3an\uff1b\u663e\u7136\u5728\uff08c\uff09\u4e2d\uff0c\u8be5\u8bed\u53e5\u7684\u9891\u5ea6\u4e3an^2\u3002\u7531\u6b64\uff0c\u8fd9\u4e09\u4e2a\u7a0b\u5e8f\u6bb5\u7684\u65f6\u95f4\u590d\u6742\u5ea6\u4e3aO(1)\u3001O(n)\u3001O(n^2)\u3002\u5206\u522b\u4e3a\u5e38\u91cf\u3001\u7ebf\u6027\u9636\u548c\u5e73\u65b9\u9636\u3002\u5bf9\u4e8e\u8f83\u4e3a\u590d\u6742\u7684\u7b97\u6cd5\uff0c\u53ef\u4ee5\u5c06\u5b83\u4eec\u5206\u5272\u6210\u5bb9\u6613\u4f30\u7b97\u7684\u51e0\u4e2a\u90e8\u5206\uff0c\u7136\u540e\u5229\u7528O\u7684\u6c42\u548c\u539f\u5219\u5f97\u5230\u6574\u4e2a\u7b97\u6cd5\u7684\u65f6\u95f4\u590d\u6742\u5ea6\u3002\u4f8b\u5982\uff0c\u82e5\u7b97\u6cd5\u7684\u4e24\u4e2a\u90e8\u5206\u7684\u65f6\u95f4\u590d\u6742\u5ea6\u5206\u522b\u4e3aT1(n)=O(f(n))\u548cT2(n)=O(g(n))\uff0c\u5219\u603b\u7684\u65f6\u95f4\u590d\u6742\u5ea6\u4e3a:T(n)= T1(n)+ T2(n)=O(max(f(n), g(n)))\u7136\u800c\uff0c\u5f88\u591a\u7b97\u6cd5\u7684\u8fd0\u884c\u65f6\u95f4\u4e0d\u4ec5\u4f9d\u8d56\u4e8e\u95ee\u9898\u7684\u89c4\u6a21\uff0c\u4e5f\u4e0e\u5904\u7406\u7684\u6570\u636e\u96c6\u6709\u5173\u3002\u4f8b\u5982\uff0c\u6709\u7684\u6392\u5e8f\u7b97\u6cd5\u5bf9\u67d0\u4e9b\u539f\u59cb\u6570\u636e\uff08\u5982\u81ea\u5c0f\u81f3\u5927\u6709\u5e8f\uff09\uff0c\u5219\u5176\u65f6\u95f4\u590d\u6742\u5ea6\u4e3aO(n)\uff0c\u800c\u5bf9\u53e6\u4e00\u4e9b\u6570\u636e\u53ef\u8fbeO(n^2)\u3002\u56e0\u6b64\uff0c\u5728\u4f30\u7b97\u7b97\u6cd5\u7684\u65f6\u95f4\u590d\u6742\u5ea6\u65f6\uff0c\u5747\u4ee5\u6570\u636e\u96c6\u4e2d\u6700\u574f\u7684\u60c5\u51b5\u6765\u4f30\u7b97\u3002\u6587\u7ae0\u5c0f\u7ed3\u8bc4\u4f30\u7b97\u6cd5\u65f6\u95f4\u590d\u6742\u5ea6\u7684\u8981\u70b9\u662f\uff1a\u5982\u679c\u4e00\u4e2a\u7b97\u6cd5\u7684\u6267\u884c\u6b21\u6570\u662f T(n)\uff0c\u90a3\u4e48\u53ea\u4fdd\u7559\u6700\u9ad8\u6b21\u9879\uff0c\u540c\u65f6\u5ffd\u7565\u6700\u9ad8\u9879\u7684\u7cfb\u6570\u540e\u5f97\u5230\u51fd\u6570 f(n)\uff0c\u6b64\u65f6\u7b97\u6cd5\u7684\u65f6\u95f4\u590d\u6742\u5ea6\u5c31\u662f O(f(n))\u3002"}, {"img": ["https://exp-picture.cdn.bcebos.com/939c2d40b6f39187f84bb57424fce186252fefef.m2m?x-bce-process=image%2Fresize%2Cm_lfit%2Cw_500%2Climit_1"]}]]