DisjointNode - Code Metrics - Inspection of "moved DisjointNode to trees folder and added more..." - SiroDiaz/DataStructures - Measure and Improve Code Quality continuously with Scrutinizer

Completed

Push — master ( 42e858...e23440 )

by Siro Díaz

created 2017-06-22 10:53 UTC

DisjointNode A

↳ Parent: Project

Complexity

Total Complexity

Size/Duplication

Total Lines	11
Duplicated Lines	0 %

Coupling/Cohesion

Components	0
Dependencies	0

Importance

Changes	1
Bugs	0	Features	1

Metric	Value
wmc	1
c	1
b	0
f	1
lcom	0
cbo	0
dl	0
loc	11
rs	10

<?php
/**
 * DataStructures for PHP
 *
 * @link      https://github.com/SiroDiaz/DataStructures
 * @copyright Copyright (c) 2017 Siro Díaz Palazón
 * @license   https://github.com/SiroDiaz/DataStructures/blob/master/README.md (MIT License)
 */
namespace DataStructures\Sets;

use DataStructures\Trees\Nodes\DisjointNode;

/**
 * DisjointSet.
 *
 * The DisjointSet class represents a disjoint set.
 * Operations take in worse case a O(n) except makeSet that takes
 * constant time, O(1).
 * Basic operations are makeSet, find and union.
 *
 * @author Siro Diaz Palazon <[email protected]>
 */
class DisjointSet {
    public function __construct() {}

    public function makeSet($data) {
        $newSet = new DisjointNode(0, $data);
        $newSet->parent = &$newSet;

        return $newSet;
    }

    public function find(DisjointNode $node) : DisjointNode {
        if($node->parent !== $node) {
            $node->parent = $this->find($node->parent);
        }

        return $node->parent;
    }

    public function union($x, $y) {
        $rootX = $this->find($x);
        $rootY = $this->find($y);

        if($rootX === $rootY) {
            return;
        }

        if($rootX->rank < $rootY->rank) {
            $rootX->parent = &$rootY;
        } else if($rootX->rank > $rootY->rank) {
            $rootY->parent = &$rootX;
        } else {
            $rootX->parent = &$rootY;
            $rootY->rank++;
        }
    }
}

1			<?php
2			/**
3			* DataStructures for PHP
4			*
5			* @link https://github.com/SiroDiaz/DataStructures
6			* @copyright Copyright (c) 2017 Siro Díaz Palazón
7			* @license https://github.com/SiroDiaz/DataStructures/blob/master/README.md (MIT License)
8			*/
9			namespace DataStructures\Sets;
10
11			use DataStructures\Trees\Nodes\DisjointNode;
12
13			/**
14			* DisjointSet.
15			*
16			* The DisjointSet class represents a disjoint set.
17			* Operations take in worse case a O(n) except makeSet that takes
18			* constant time, O(1).
19			* Basic operations are makeSet, find and union.
20			*
21			* @author Siro Diaz Palazon <[email protected]>
22			*/
23			class DisjointSet {
24			public function __construct() {}
25
26			public function makeSet($data) {
27			$newSet = new DisjointNode(0, $data);
28			$newSet->parent = &$newSet;
29
30			return $newSet;
31			}
32
33			public function find(DisjointNode $node) : DisjointNode {
34			if($node->parent !== $node) {
35			$node->parent = $this->find($node->parent);
36			}
37
38			return $node->parent;
39			}
40
41			public function union($x, $y) {
42			$rootX = $this->find($x);
43			$rootY = $this->find($y);
44
45			if($rootX === $rootY) {
46			return;
47			}
48
49			if($rootX->rank < $rootY->rank) {
50			$rootX->parent = &$rootY;
51			} else if($rootX->rank > $rootY->rank) {
52			$rootY->parent = &$rootX;
53			} else {
54			$rootX->parent = &$rootY;
55			$rootY->rank++;
56			}
57			}
58			}

SiroDiaz / DataStructures

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DisjointNode A

Complexity

Size/Duplication

Coupling/Cohesion

Importance

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