IntegerSetArrayImplementation::symmetricDifference() - Code Metrics - Inspection of "Symmetric difference int implementation added." - Smoren/partial-intersection-php - Measure and Improve Code Quality continuously with Scrutinizer

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by Smoren

created 2023-01-28 11:40 UTC

symmetricDifference() A

↳ Parent: IntegerSetArrayImplementation

Complexity

Conditions	1
Paths	1

Size

Total Lines	6
Code Lines	3

Duplication

Lines	0
Ratio	0 %

Code Coverage

Tests	4
CRAP Score	1

Importance

Changes

Metric	Value
cc	1
eloc	3
nc	1
nop	1
dl	0
loc	6
ccs	4
cts	4
cp	1
crap	1
rs	10
c	0
b	0
f	0

<?php

declare(strict_types=1);

namespace Smoren\PartialIntersection;

class IntegerSetArrayImplementation
{
    /**
     * @param int $m
     * @param array<int> ...$sets
     *
     * @return array<int>
     */
    public static function partialIntersection(int $m, array ...$sets): array
    {
        $iterator = new \MultipleIterator(\MultipleIterator::MIT_NEED_ANY);

        foreach ($sets as $set) {
            $iterator->attachIterator(new \ArrayIterator($set));
        }

        $usageMap = [];
        $result = [];

        foreach ($iterator as $values) {
            foreach ($values as $value) {
                if ($value === null) {
                    continue;
                }

                if (!isset($usageMap[$value])) {
                    $usageMap[$value] = 0;
                }

                $usageMap[$value]++;

                if ($usageMap[$value] === $m) {
                    $result[] = $value;
                }
            }
        }

        sort($result);

        return $result;
    }

    /**
     * Symmetric difference of multiple sets.
     *
     * @param array<int> ...$sets
     * @return array
     */
    public static function symmetricDifference(array ...$sets): array
    {
        $union = array_values(array_unique(array_merge(...$sets)));
        $twoPartInt = self::partialIntersection(2, ...$sets);

        return array_values(array_diff($union, $twoPartInt));
    }
}


1		<?php
2
3		declare(strict_types=1);
4
5		namespace Smoren\PartialIntersection;
6
7		class IntegerSetArrayImplementation
8		{
9		/**
10		* @param int $m
11		* @param array<int> ...$sets
12		*
13		* @return array<int>
14		*/
15	31	public static function partialIntersection(int $m, array ...$sets): array
16		{
17	31	$iterator = new \MultipleIterator(\MultipleIterator::MIT_NEED_ANY);
18
19	31	foreach ($sets as $set) {
20	29	$iterator->attachIterator(new \ArrayIterator($set));
21		}
22
23	31	$usageMap = [];
24	31	$result = [];
25
26	31	foreach ($iterator as $values) {
27	24	foreach ($values as $value) {
28	24	if ($value === null) {
29	10	continue;
30		}
31
32	24	if (!isset($usageMap[$value])) {
33	24	$usageMap[$value] = 0;
34		}
35
36	24	$usageMap[$value]++;
37
38	24	if ($usageMap[$value] === $m) {
39	16	$result[] = $value;
40		}
41		}
42		}
43
44	31	sort($result);
45
46	31	return $result;
47		}
48
49		/**
50		* Symmetric difference of multiple sets.
51		*
52		* @param array<int> ...$sets
53		* @return array
54		*/
55	1	public static function symmetricDifference(array ...$sets): array
56		{
57	1	$union = array_values(array_unique(array_merge(...$sets)));
58	1	$twoPartInt = self::partialIntersection(2, ...$sets);
59
60	1	return array_values(array_diff($union, $twoPartInt));
61		}
62		}
63

Smoren / partial-intersection-php

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symmetricDifference() A

Complexity

Size

Duplication

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Importance

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