Struct SetBasis 

pub struct SetBasis { /* private fields */ }

The Set Basis decision problem.

Given a collection C of subsets of a finite set S and an integer k, determine whether there exists a collection B of exactly k subsets of S such that every set in C can be expressed as the union of some subcollection of B.

Implementations

impl SetBasis

pub fn new(universe_size: usize, collection: Vec<Vec<usize>>, k: usize) -> Self

Create a new Set Basis instance.

Panics

Panics if any element in collection lies outside the universe.

pub fn universe_size(&self) -> usize

Return the universe size.

pub fn num_sets(&self) -> usize

Return the number of target sets.

pub fn basis_size(&self) -> usize

Return the required basis size.

pub fn collection(&self) -> &[Vec<usize>]

Return the target collection.

pub fn get_set(&self, index: usize) -> Option<&Vec<usize>>

Return a single target set.

pub fn is_valid_solution(&self, config: &[usize]) -> bool

Check whether the configuration is a satisfying Set Basis solution.

Trait Implementations

impl Clone for SetBasis

fn clone(&self) -> SetBasis

Returns a duplicate of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl Debug for SetBasis

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl<'de> Deserialize<'de> for SetBasis

fn deserialize<__D>(__deserializer: __D) -> Result<Self, __D::Error>

where __D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer.

impl Problem for SetBasis

const NAME: &'static str = "SetBasis"

Base name of this problem type (e.g., “MaximumIndependentSet”).

type Value = Or

The evaluation value type.

fn dims(&self) -> Vec<usize>

Configuration space dimensions. Each entry is the cardinality of that variable.

fn evaluate(&self, config: &[usize]) -> Or

Evaluate the problem on a configuration.

fn variant() -> Vec<(&'static str, &'static str)>

Returns variant attributes derived from type parameters.

fn num_variables(&self) -> usize

Number of variables (derived from dims).

fn problem_type() -> ProblemType

Look up this problem’s catalog entry.

impl Serialize for SetBasis

fn serialize<__S>(&self, __serializer: __S) -> Result<__S::Ok, __S::Error>

where __S: Serializer,

Serialize this value into the given Serde serializer.

impl DeclaredVariant for SetBasis