{"id":1704,"date":"2017-01-27T01:21:54","date_gmt":"2017-01-26T17:21:54","guid":{"rendered":"http:\/\/cn.hostease.com\/xueyuan\/?p=1704"},"modified":"2025-01-06T20:43:21","modified_gmt":"2025-01-06T12:43:21","slug":"%e7%bb%8f%e5%85%b8%e7%ae%97%e6%b3%95%e9%a2%98%e6%af%8f%e6%97%a5%e6%bc%94%e7%bb%83-%e7%ac%ac%e4%b8%89%e9%a2%98-%e7%8c%b4%e5%ad%90%e5%90%83%e6%a1%83","status":"publish","type":"post","link":"https:\/\/cn.hostease.com\/xueyuan\/jishu\/%e7%bb%8f%e5%85%b8%e7%ae%97%e6%b3%95%e9%a2%98%e6%af%8f%e6%97%a5%e6%bc%94%e7%bb%83-%e7%ac%ac%e4%b8%89%e9%a2%98-%e7%8c%b4%e5%ad%90%e5%90%83%e6%a1%83\/","title":{"rendered":"\u7ecf\u5178\u7b97\u6cd5\u9898\u6bcf\u65e5\u6f14\u7ec3\u2014\u2014\u7b2c\u4e09\u9898 \u7334\u5b50\u5403\u6843"},"content":{"rendered":"\n

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 <\/p>\n\n\n\n

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\u4ee4S10<\/sub>=1\uff0c\u5bb9\u6613\u770b\u51fa S9=2(S10+1)\uff0c \u7b80\u5316\u4e00\u4e0b<\/p>\n\n\n\n

S9<\/sub>=2S10<\/sub>+2<\/p>\n\n\n\n

S8<\/sub>=2S9<\/sub>+2<\/p>\n\n\n\n

…..<\/p>\n\n\n\n

Sn<\/sub>=2Sn+1<\/sub>+2<\/p>\n\n\n\n

 <\/p>\n\n\n\n

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 <\/div>\n
 1     class Program\n 2     {\n 3         static void Main(string[] args)\n 4         {\n 5             int sum = SumPeach(1);\n 6 \n 7             Console.WriteLine(\"\u7b2c\u4e00\u5929\u6458\u5f97\u6843\u5b50\u6709:{0}\", sum);\n 8 \n 9             Console.Read();\n10         }\n11 \n12         \/\/\u9012\u5f52\n13         static int SumPeach(int day)\n14         {\n15             if (day == 10)\n16                 return 1;\n17 \n18             return 2 * SumPeach(day + 1) + 2;\n19         }\n20     }<\/pre>\n
 <\/div>\n<\/div>\n\n\n\n
 <\/p>\n\n\n\n
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 <\/div>\n
 1     class Program\n 2     {\n 3         static void Main(string[] args)\n 4         {\n 5             int sum = SumPeachTail(1, 1);\n 6 \n 7             Console.WriteLine(\"\u7b2c\u4e00\u5929\u6458\u5f97\u6843\u5b50\u6709:{0}\", sum);\n 8 \n 9             Console.Read();\n10         }\n11 \n12         \/\/\u5c3e\u9012\u5f52\n13         static int SumPeachTail(int day, int total)\n14         {\n15             if (day == 10)\n16                 return total;\n17 \n18             \/\/\u5c06\u5f53\u524d\u7684\u503c\u8ba1\u7b97\u51fa\u4f20\u9012\u7ed9\u4e0b\u4e00\u5c42\n19             return SumPeachTail(day + 1, 2 * total + 2);\n20         }\n21     }<\/pre>\n
 <\/div>\n<\/div>\n\n\n\n
\"\"<\/a><\/figure>\n\n\n\n
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 <\/p>\n\n\n\n
\"\"<\/a><\/figure>\n\n\n\n
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\"\"<\/a><\/figure>\n\n\n\n
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\u6211\u505a\u8fd9\u4e2a\u4f18\u5316:-D\u3002<\/p>\n\n\n\n
 <\/p>\n\n\n\n
\u4e0b\u4e00\u6b65\u6211\u4eec\u5c31\u8981\u8ba1\u7b97\u4e00\u4e0b\u8fd9\u4e2a\u9012\u5f52\u7684\u65f6\u95f4\u590d\u6742\u5ea6\u662f\u591a\u5c11\uff0c\u5173\u4e8e\u6c42\u201c\u9012\u5f52\u201d\u7684\u65f6\u95f4\u590d\u6742\u5ea6\u4e3b\u8981\u6709\u4e09\u79cd\uff1a<\/p>\n\n\n\n
1.  \u4ee3\u6362\u6cd5\u3002<\/p>\n\n\n\n
2.  \u9012\u5f52\u6811\u6cd5\u3002<\/p>\n\n\n\n
3.  \u4e3b\u5b9a\u7406\u3002<\/p>\n\n\n\n
 <\/p>\n\n\n\n
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 <\/p>\n\n\n\n
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Tn<\/sub>=2Tn-1<\/sub>+2             \u2460<\/p>\n\n\n\n
\u5047\u4f7f           Tn=O(n)                   \u2461<\/p>\n\n\n\n
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Tn<=cO(n)=cn           \u2462<\/p>\n\n\n\n
\u2462\u4ee3\u5165\u2460\u77e5<\/p>\n\n\n\n
Tn<=2c(n-1)+2=2cn-2c+2<\/p>\n\n\n\n
=cn-c+1<\/p>\n\n\n\n
=cn-(c-1)<\/p>\n\n\n\n
\u5f53c>=1\u65f6\uff0c\u5219\u5fc5\u6709 Tn<=cn<\/p>\n\n\n\n
 <\/p>\n\n\n\n
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 <\/p>\n\n\n\n
\u6587\u7ae0\u6765\u81ea\u7f51\u7edc\u535a\u5ba2\uff0c\u539f\u6587\u5730\u5740\uff1ahttps:\/\/www.cnblogs.com\/huangxincheng\/archive\/2012\/08\/08\/2628022.html<\/p>\n\n\n\n
 <\/p>\n","protected":false},"excerpt":{"rendered":"
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