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Thank you 
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Need to do the following:
given a array 'a' of double of monotone increasing values and a given value I have to find the index in the array so that V<a[i] &&="" v<="a[i+1]," if="" v="a.Min()," then="" return="" 0,=""> a.Max() or V < a.Min() the return 100.
double[] a = new double[]{1,2,3,4}
I look for a function F so that for example (implementing whaat described above:
F[0.5] =100;
F[1] = 0;
F[2] = 0;
F[2.1] =1;
F[4] =3;
F[4.1] =100;
It can be done with for...loop of course. Is it efficent or it is better using LINQ or Array.FindIndex or...smarter solution? (if it is more efficent LINQ or Array.FindIndex, how to do it?)
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TheGermoz wrote: is better using LINQ
No. Probably not anyway, but I'm unclear what you are trying to do.
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100 is a stupid failure value. What if you have a 100 element array? -1 is traditional for 'not found' (see Array.IndexOf and the like).
I think your expected output is wrong ... if F[4] is 3 then F[2] must be 1.
Does
int F(double[] arr, int value){
return -1 + Array.FindIndex(arr, d => d >= value);
}
... do what you want?
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yes sorry my error F[2] must be 1.
Yes is solve it. The only error is for F[1] should be 0 and not -1.
Is it more efficient Linq or BinarySearch?
modified 27-Nov-12 7:47am.
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If the values are monotonically increasing, Array.BinarySearch[^] will probably be the most efficient way to find a particular value.
"These people looked deep within my soul and assigned me a number based on the order in which I joined."
- Homer
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I would put it in a List. That contains a functions to search.
See here[^].
List<double> a = new List<double>();
a.Add(1);
a.Add(2);
a.Add(3);
a.Add(4);
Hope this helps.
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TheGermoz wrote: It can be done with for...loop of course. Is it efficent or it is better using LINQ or Array.FindIndex or...smarter solution? (if it is more efficent LINQ or Array.FindIndex, how to do it?)
The difference in performance would only just be better for LINQ.
If your function is not many to one, you could directly use a key value pair collection.
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Hello! Can you get advise me how send data from PHP script to local program developed on C#?
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Junoli wrote: Hello! Can you get advise me how send data from PHP script to local program developed on C#?
Sure. "research a lot".
You can launch an external app from PHP using the exec[^] method. It doesn't matter what language the app was written in.
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Maybe i expressed mind not good. I have php script on WebServer what must send data to my local machine to localhost (client WTF C#). How i understood correctly - function exec runs process on server.
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I know there is possible to work with sockets.
In the PHP i can open socket and send it data. And in C# connect to socket and read sent data.
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Yup, that's an option; It's easier if the C# app can initiate the communication, since that'd mean you'd only have to GET/POST a webpage.
Communicating over a socket should be possible, but I'd seriously spend some time looking for an easier way.
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Profitability to do that client (C#) not make request on Server(PHP) every time and do it contra.
That is mean the server will send data if it need, once.
How send data to socket in PHP i know, but how it take on C# WTF - don't know. Can you line me on true way, i am beginner
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A webserver typically serves data, it doesn't push it to the client.
Junoli wrote: That is mean the server will send data if it need, once.
My last article is about polling a webserver, and it isn't continually reading data; it's asking the webserver whether or nor a specific file has changed. If it has, it's downloaded and processed.
If you need a "push"-mechanism that actively works with it's clients, I'd suggest a server-application in C#, not a PHP-website.
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Okay, give me please source example C# server app, and how it set to server?! Thank you
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Junoli wrote: Okay, give me please source example C# server app
Voila[^].
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Thank you. So how i can start this server program on the WebServer?
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It's not a program, it's source-code; if you want to communicate, someone will have to write a server. That should be a bit easier than tinkering with a socket from a PHP-page on a webserver.
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I saw this example, but i dont understand full function this code and my program dont make steps futher then "Waiting for a connection..." This program work with local? Where to send a request?
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I understand you. But if i wrote source code on C# how to load on the server (I have a hosting)? What will be compile my source C# on server and will send me data on local machine?
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Hello.My English is bad because I'm Turkish and I have a question.I want to add image to Label with C# codes.How can i do?
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What is you UI, winforms, asp or Silverlight/WPF
Never underestimate the power of human stupidity
RAH
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I solve the problem thanks.
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OğuzhanÇALIŞKAN wrote: My English is bad because I'm Turkish
Your English is bad because of lack o' exposure, not because of "being Turkish".
Create a UserControl, yank a PictureBox and a Label in there and you're done.
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