ogdf::internal::gcm::datastructure::UnionFind Class Reference

Implements the Union Find Datastructure to maintain disjoint sets efficiently. More...

#include <ogdf/geometric/cr_min/datastructure/UnionFind.h>

Public Member Functions
	UnionFind (unsigned int max_element)
	Create a new set representation with not more than max_element elements.
void	all_to_singletons ()
	Assigns every element to a singleton set.
unsigned int	find (unsigned int u)
	Find the representative to element u.
void	merge (unsigned int u, unsigned int v)
	Merge the two sets containing u and v.
unsigned int	operator[] (unsigned int u)

Private Attributes
std::vector< int >	data

Detailed Description

Implements the Union Find Datastructure to maintain disjoint sets efficiently.

Definition at line 45 of file UnionFind.h.

Constructor & Destructor Documentation

UnionFind()

ogdf::internal::gcm::datastructure::UnionFind::UnionFind ( unsigned int  max_element )

inline

Create a new set representation with not more than max_element elements.

Initialy every element is in its own set.

Parameters

max_element

maximum number of elements

Definition at line 55 of file UnionFind.h.

Member Function Documentation

all_to_singletons()

void ogdf::internal::gcm::datastructure::UnionFind::all_to_singletons ( )

inline

Assigns every element to a singleton set.

Set id is equal to element id.

Definition at line 63 of file UnionFind.h.

find()

unsigned int ogdf::internal::gcm::datastructure::UnionFind::find ( unsigned int  u )

inline

Find the representative to element u.

Parameters

u

element

Returns

representative of set containing u

Definition at line 70 of file UnionFind.h.

merge()

void ogdf::internal::gcm::datastructure::UnionFind::merge ( unsigned int  u, unsigned int  v  )

inline

Merge the two sets containing u and v.

Parameters

u	element u
v	element v

Definition at line 87 of file UnionFind.h.

operator[]()

unsigned int ogdf::internal::gcm::datastructure::UnionFind::operator[] ( unsigned int  u )

inline

Definition at line 80 of file UnionFind.h.

Member Data Documentation

data

std::vector<int> ogdf::internal::gcm::datastructure::UnionFind::data

private

Definition at line 47 of file UnionFind.h.

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The documentation for this class was generated from the following file:

• include/ogdf/geometric/cr_min/datastructure/UnionFind.h