인터뷰 필수 알고리즘, PHP 알고리즘 정렬 백과사전

1.冒泡排序

function sort($array) {

    $length=count($array);

    for ($i=$length;$i>0;$i--){

        $ swape=true;

        for ($j=0;$j<$i-1;$j++){

            if ($array[$j]>$array[$j+1]){

                $ temp=$array[$j];

                $array[$j]=$array[$j+1];

                $array[$j+1]=$temp;

                $swape=false;

}

        }

        if ($swape)break;

    }

    return $array;

}

2.气泡排序

function sort($input)

{

    

    if(!isset ($input))

    {

        return [];

    }

    do

    {

        $swapped = false;

        for($i = 0, $count = 크기 of($input) - 1; $i < $count; $i++)

        {

            if($input[$i + 1] < $input[$i])

            {

                목록($input[$i + 1], 정의 ($교환됨);

    $input 반환;

}

$array = [51158,1856,8459,67957,59748,58213,90876,39621,66570,64204,79935,27892,47615,94706,34 201,74474,63968,4337 ,43688,42685,31577,5239,25385,56301,94083,23232,67025,44044,74813,34671,90235,65764,49709,12440,21165,20620,38265,12973,2 5236,93144,13720,4204,77026 ,42348,19756,97222,78828,73437,48208,69858,19713,29411,49809,66174,52526277,7515,7873,8350,28229,24105,76818,86897,18456, 29373,7853,24932,93070,4696 ,63015,9358,28302,3938,11754,33679,18492,91503,63395,12029,23954,27230,58336,16544,23606,61349,37348,78629,96145,57954,32 392,76201,54616,59992,5676 ,97799,47910,98758,75043,72849,6466,68831,2246,69091,22296,6506,93729,86968,39583,46186,96782,19074,46574,46704,99211,552 95,33963,77977,86805,72686 ];

$array = sort($array);

echo implode(',', $array);

3.计数排序

function sort($array, $min, $max)

{

    $count = array();

    for($i = $min; $i <= $max; $i++)

    {

        $count[$i] = 0;

    }

    foreach($array as $number)

    {

        $count[$number]++;

    }

    $ z = 0;

    for($i = $min; $i <= $max; $i++) {

        while( $count[$i]-- > 0 ) {

            $array[$z++ ] = $i;

        }

    }

    return $array;

}

4.插入排序

function sort($array){

    for ($i=1;$i

        $currentVal=$array[$i];

        for ($j=$i-1;$j>=0&&$array[$j]>$currentVal;$j- -) {

$ array [$ j+1] = $ array [$ j];

}

$ array [$ j+1] = $ currentVal;

}

retray $ array;

}

5.快速排序

함수 정렬($input)

{

   

    if(!isset($input))

    {

        return [];

   }

    $lt = [];

    $gt = [];

    if(sizeof($input) < 2)

    {

        return $input;

    }

    $key = key($input);

    $shift = 배열_시프트 ($input);

    foreach($input as $value)

    {

        $value <= $shift ? $lt[] = $value : $gt[] = $value;

    }

    return array_merge(quickSort($lt), [$key => $shift], QuickSort($gt));

}

$배열 = [51158,1856,8459,67957,59748,58213,90876,39621,66570,64204,79935,27892,47615,94706,34201,74474,63968,4337,43688, 42685,31577,5239,25385 ,56301,94083,23232,67025,44044,74813,34671,90235,65764,49709,12440,21165,20620,38265,12973,25236,93144,13720,4204,77026,4 2348,19756,97222,78828,73437 ,48208,69858,19713,29411,49809,3015,9358,28302,3938,11754,33679,18492,91503,63395,12029,23954,27230,58336,16544,23606,613 49,37348,78629,96145,57954 ,32392,76201,54616,59992,5676,97799,47910,98758,75043,72849,6466,68831,2246,69091,22296,6506,93729,86968,39583,46186,9678 2,19074,46574,46704,99211 ,55295,33963,77977,86805,72686];

$array = QuickSort($array);

echo implode(',', $array);

6.选择排序

function sort($array) {

    $length=count($array);

    for ($i=0;$i<$length;$i++){

        $lowest=$i;

        for ($j=$i+1 ;$j

            if ($array[$j] < $array[$lowest]){

                $lowest=$j;

            }

       }

        if ($ i !==$최저){

            $temp=$array[$i];

            $array[$i]=$array[$lowest];

            $array[$lowest]=$temp;

}

    }

    return $array;

}

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원문链接：https://blog.csdn.net/m0_37540251/article/details/125201836

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