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@ChatGPT Hi Regan! Thanks again for this. We have suggested some alternative language which is more technically precise, at places in the attached document. Please incorporate as you see fit and publish.
2 more requests for you:
Please share the links of where this is published
Please share traffic/visitor numbers as much as you have them, so we can get a sense of how many people are reading the piece.
Thank you!请帮我写一封英文邮件回复他!
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lemon_tree说:
T(n)=T(n/3) + 100的时间复杂度怎么算
O(log3n)
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坏人说:
一个卖牛奶的人告诉两个小学生:这儿的一个钢桶里盛着水,另一个钢桶里盛着牛奶,由于牛奶乳脂含量过高,必须用水稀释才能饮用.现在我把A桶里的液体倒入B桶,使其中液体的体积翻了一番,然后我又把B桶里的液体倒进A桶,使A桶内的液体体积翻番.最后,我又将A桶中的液体倒进B桶中,使B桶中液体的体积翻番.此时我发现两个桶里盛有同量的液体,而在B桶中,水比牛奶多出1升.现在要问你们,开始时有多少水和牛奶,而在结束时,每个桶里又有多少水和牛奶?
开始时A桶里有2升水,B桶里有1升牛奶;结束时A桶里有3升水,B桶里有2升水和1升牛奶。
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lemon_tree说:
T(n)=T(n/3) + 100的时间复杂度怎么算?可以给出详细的过程吗?
T(n) = T(n/3) + 100
根据Master Theorem,设T(n)的时间复杂度为O(f(n)),则有:
f(n) = n^log3_100 + 100
根据log3_100 = log3_2 * log2_100 = log2_100,
即f(n) = n^log2_100 + 100
因此,T(n)的时间复杂度为O(n^log2_100 + 100)。
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ivan说:
c#编写一个串口转网络透传程序
using System;
using System.IO.Ports;
using System.Net;
using System.Net.Sockets;
using System.Threading;namespace SerialToNet
{
class Program
{
static void Main(string[] args)
{
Socket socket = new Socket(AddressFamily.InterNetwork, SocketType.Stream, ProtocolType.Tcp);
IPEndPoint endPoint = new IPEndPoint(IPAddress.Parse("127.0.0.1"), 8888);
socket.Bind(endPoint);
socket.Listen(100);
Console.WriteLine("服务器已启动,等待客户端连接...");// 建立串口 SerialPort serialPort = new SerialPort("COM1", 9600, Parity.None, 8, StopBits.One); serialPort.Open(); while (true) { // 接受客户端连接 Socket clientSocket = socket.Accept(); Console.WriteLine("连接上一个客户端"); // 客户端接收数据线程 Thread receiveThread = new Thread(ReceiveData); receiveThread.IsBackground = true; receiveThread.Start(clientSocket); // 串口接收数据线程 Thread serialPortThread = new Thread(SerialPortReceiveData); serialPortThread.IsBackground = true; serialPortThread.Start(serialPort); } } /// /// 客户端接收数据线程 /// /// static void ReceiveData(object obj) { Socket clientSocket = obj as Socket; while (true) { byte[] buffer = new byte[1024 * 1024 * 2]; int r = clientSocket.Receive(buffer); if (r == 0) { break; } Console.WriteLine("收到客户端:{0}", Encoding.UTF8.GetString(buffer, 0, r)); } } /// /// 串口接收数据线程 /// /// static void SerialPortReceiveData(object obj) { SerialPort serialPort = obj as SerialPort; while (true) { string data = serialPort.ReadExisting(); if (!string.IsNullOrEmpty(data)) { Console.WriteLine("收到串口:{0}", data); } } } }
}