The powerset of {1, 2, 3} is: {{}, {2}, {3}, {2, 3}, {1, 2}, {1, 3}, {1, 2, 3}, {1}} Lets say I have a Set in Java... Set<Integer> mySet = new HashSet<Integer>(); mySet.add(1); mySet.add(2); mySet.add(3); Set<Set<Integer>> powerSet = getPowerset(mySet); What I want is the function getPowerset, with the best possible order of complex...
This could be language agnostic/helpful answers could just be in pseudo-code. I have a program that I would like to test under a range of inputs. This program takes a set of files, one of which is designated as the root. I want to run the program with all possible subsets of files. (Two subsets, containing the same files, but with diffe...
I need to construct the power sets of a set, lazily, by smallest size first. I have a working class+algorithm (see below), but I feel like perhaps it's crazy, because it seems waaaay too elaborate. I am looking for alternatives; any suggestions? If some of the collections look unfamiliar, they are from the Google Collections library, ...
Is there some equivalent library or function that will give me the next combination of a set of values like next_permutation in does for me? ...
I would like to efficiently generate a unique list of combinations of numbers based on a starting list of numbers. example start list = [1,2,3,4,5] but the algorithm should work for [1,2,3...n] result = [1],[2],[3],[4],[5] [1,2],[1,3],[1,4],[1,5] [1,2,3],[1,2,4],[1,2,5] [1,3,4],[1,3,5],[1,4,5] [2,3],[2,4],[2,5] [2,3,4],[2,3,5] [3,4...
Possible Duplicates: Display possible combinations of string algorithm that will take numbers or words and find all possible combinations If I have 3 strings, such as: "abc def xyz" And I want to find the max number of combinations I can generate by rearranging these strings, e.g: abc xyz def def xyz abc xyz abc def e...
For a problem that I'm working on right now, I would like a reasonably uniform random choice from the powerset of a given set. Unfortunately this runs right into statistics which is something that I've not studied at all (something that I need to correct now that I'm getting into real programming) so I wanted to run my solution past some...
Following set is given: X := {Horse, Dog} Y := {Cat} I define the set: M := Pow(X) u {Y} u for union The resulting set of the power set operation is: Px := {0, {Horse}, {Dog}, {Horse, Dog}} 0 for empty set My question is referenced to the unio operation. How do I unite 0 and Y? M := {{Horse, Cat}, {Dog, Cat}, {Horse, Dog, Ca...