<?php
/*
 * This file is part of the Diff package.
 *
 * (c) Sebastian Bergmann <sebastian@phpunit.de>
 *
 * For the full copyright and license information, please view the LICENSE
 * file that was distributed with this source code.
 */

namespace SebastianBergmann\Diff\LCS;

/**
 * Interface for implementations of longest common subsequence calculation.
 */
interface LongestCommonSubsequence
{
    /**
     * Calculates the longest common subsequence of two arrays.
     *
     * @param array $from
     * @param array $to
     *
     * @return array
     */
    public function calculate(array $from, array $to);
}