Solved

All combinations of an List with integers

Posted on 2014-04-13
4
166 Views
Last Modified: 2014-05-31
Hi

I have a list with up to 8 values in it. (integer)
Now I want to get all combinations of these value's,

so e.g. a List with 3 integers (1,2,3)
I need as result:

1
2
3
1-2
2-3
3-1
1-2-3

what I don't need is 2-1/3-2/1-3, so 1-3 has the same value as 3-1 for me...

How can I do this with dynamic values (so it might be value 4, 12, 17, 3)

Thanks
0
Comment
Question by:Ruttensoft
[X]
Welcome to Experts Exchange

Add your voice to the tech community where 5M+ people just like you are talking about what matters.

  • Help others & share knowledge
  • Earn cash & points
  • Learn & ask questions
  • 2
4 Comments
 
LVL 100

Expert Comment

by:mlmcc
ID: 39998875
Do you need the output to be as you show it or do you just need to list of combinations without regard to order?

Consider how you have to loop through the data.

Can you have duplicate values in the list?

What programming constructs can you use?

Have you identified the algorithm you need for this?

mlmcc
0
 
LVL 25

Accepted Solution

by:
apeter earned 500 total points
ID: 39999192
Looks like you need three for loops.

split it and get an array.

1. Lopp the array and print individual element separately
2. Second one, begins from index I and take I+1 and join them,  this loops until < list.count -1. at the end add list[count],lit[0] as another output
3. You can use list.join for this. no for loop is required
0
 
LVL 100

Expert Comment

by:mlmcc
ID: 39999413
WHat about a list of 8 elements like


1,3,5,7,9,11,13,15

mlmcc
0

Featured Post

Free Tool: Subnet Calculator

The subnet calculator helps you design networks by taking an IP address and network mask and returning information such as network, broadcast address, and host range.

One of a set of tools we're offering as a way of saying thank you for being a part of the community.

Question has a verified solution.

If you are experiencing a similar issue, please ask a related question

Suggested Solutions

Title # Comments Views Activity
Where is this file? 3 42
Why use this lambda? 12 95
Coding for the first time 9 99
Building an object from several other objects 4 37
Introduction Hi all and welcome to my first article on Experts Exchange. A while ago, someone asked me if i could do some tutorials on object oriented programming. I decided to do them on C#. Now you may ask me, why's that? Well, one of the re…
Entity Framework is a powerful tool to help you interact with the DataBase but still doesn't help much when we have a Stored Procedure that returns more than one resultset. The solution takes some of out-of-the-box thinking; read on!
Finds all prime numbers in a range requested and places them in a public primes() array. I've demostrated a template size of 30 (2 * 3 * 5) but larger templates can be built such 210  (2 * 3 * 5 * 7) or 2310  (2 * 3 * 5 * 7 * 11). The larger templa…
Exchange organizations may use the Journaling Agent of the Transport Service to archive messages going through Exchange. However, if the Transport Service is integrated with some email content management application (such as an antispam), the admini…
Suggested Courses

734 members asked questions and received personalized solutions in the past 7 days.

Join the community of 500,000 technology professionals and ask your questions.

Join & Ask a Question