I have a list with a lot of numbers and I would liek to find the patern of those numbers do I can do a number generator with that patern (or aglorithm).

I made a program to put the number in orders, but cant think which code I need to use to find a patern.

The numbers are in TXT file, so can someone please post here a source code which can find that patern (tell me where I have to put the input file (file with the numbers).

Oh yea I forgot to tell you, the numbers are done with 13 character each (0 to 9) and they are separated with - after the 4 character and the 9 one.
example: 3245-42517-7522

Thank you.

I see two questions. I think that these are what you would like to know:

1. How to read "stuff" from a text file.

2. How to determine whether one string is a substring of another string.

The answers depend on what language you want to use. (Of course, since C is more-or-less a subset of C++, a properly concocted C program could be used with a C++ compiler, but for instructional purposes that wouldn't seem to be the "right" way.)

Generic answers:

1. The simplest way is to put the text file in the same directory as the executable (the program). Then with C, use fopen(); with C++, use an ifstream.

2. With C use standard library functions strcmp() or strstr() or something similar. With C++ use std::string member functions find() or substr() or something similar.


Now, to get more specific answers, you should ask specific questions:

State the problem precisely: What's the input; what's the output; what do you need to do to get the required output from the specified input.

Show us what you have so far. Tell us specifically what you need to know to complete the task. Ask specific questions.

Tell us what compiler and operating system you are using (sometimes it makes a difference).

Regards,

Dave

Ok here,

my problem is that I need a source code that can help me find the patern(or aglorithm) of a list of numbers (around 5000) so I can use that patern to generate other numbers using the same patern of orginal numbers.

What I am asking is a source code that can do what i am asking.

Can you help?
thanks

I'm sorry, but I don't understand what you need to do. Give an example of a pattern that you would look for and how you would use it to generate other numbers.

If you tell us what you need to do, maybe someone can help you get your program to implement the requirements. We are here to help, not to give people source code.

Regards,

Dave

What you are asking for is a very complex algorithm. Can you figure out what the sequence is by looking at it? If so, write down the steps you used to decide what the sequence is. That is your algorithm.

But if you have a different group of numbers, will that sequence of steps still work? This is why your request is extremely complex.

The other problem with the request is we do not give source code. We help you correct the code you are writing when you get stuck.

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