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Arrays: Left Rotation

  • kuttumiah + 1 comment

    Hi,

    For cases including shifts more than the array size this should work.

    $actual_shift = $d % count($a);
$list =  array_merge(array_slice($a, $actual_shift), array_slice($a, 0, $actual_shift));
    • quliyev_rustam + 1 comment

      It is not necessary. By the hypothesis of the task shifts cant bo more than array size

      • kuttumiah + 1 comment

        Yeah, Thanks for the response. I missed that hypothesis.

        In that case this shouldn't this be just fine?

        array_merge(array_slice($a, $k), array_slice($a, 0, $k));
        • quliyev_rustam + 1 comment

          In this test, for "Tester 8", you need to use third argument for array_slice. Otherwise, an error is returned.

          This is because for "Tester 8" uses a large array of transmitted values

          • kuttumiah + 1 comment

            According to the PHP documentation of array_slice third argument denotes the length of the slice.

            array array_slice ( array $array , int $offset [, int $length = NULL [, bool $preserve_keys = FALSE ]] )

            If I do not pass third argument then it will be NULL by default. As a result the slice will be created until the end of the array. I believe there is nothing to do with the volume of the array. Moreover, without passing the third argument like I denoted in my previous comment I am having all the test cases passed.

            • quliyev_rustam + 0 comments

              Moreover, without passing the third argument like I denoted in my previous comment I am having all the test cases passed.

              It's very strange. But, yesterday, when I tested, it didnt work.

              Yes, you are right! It have to be like you write!