function sa($members)
{
    $T = 100.0;
    $now_temp = 10000;
    $n = count($members);
    $status = 0;
    $best = 1000000000;
    while ($T > 0) {
        do {
            $t1 = rand(0, $n - 1);
            $t2 = rand(0, $n - 1);
        } while ($t1 == $t2);
        $now = sqr(abs($members[$t1]['chosen1'] - $t1)) + sqr(abs($members[$t2]['chosen1'] - $t2));
        $new = sqr(abs($members[$t1]['chosen1'] - $t2)) + sqr(abs($members[$t2]['chosen1'] - $t1));
        if ($new < $now || lcg_value() <= exp(($now - $new) / $T)) {
            $temp = $members[$t1];
            $members[$t1] = $members[$t2];
            $members[$t2] = $temp;
            $status += $new - $now;
            if ($status < $best) {
                $res = $members;
            }
        }
        $T -= 0.02;
    }
    return $res;
}
Пример #2
0
/**
 *  
 * @param $bonus_total 红包总额
 * @param $bonus_count 红包个数
 * @param $bonus_max 每个小红包的最大额
 * @param $bonus_min 每个小红包的最小额
 * @return 存放生成的每个小红包的值的一维数组
 */
function getBonus($bonus_total, $bonus_count, $bonus_max, $bonus_min)
{
    $result = array();
    $average = $bonus_total / $bonus_count;
    $a = $average - $bonus_min;
    $b = $bonus_max - $bonus_min;
    //
    //这样的随机数的概率实际改变了,产生大数的可能性要比产生小数的概率要小。
    //这样就实现了大部分红包的值在平均数附近。大红包和小红包比较少。
    $range1 = sqr($average - $bonus_min);
    $range2 = sqr($bonus_max - $average);
    for ($i = 0; $i < $bonus_count; $i++) {
        //因为小红包的数量通常是要比大红包的数量要多的,因为这里的概率要调换过来。
        //当随机数>平均值,则产生小红包
        //当随机数<平均值,则产生大红包
        if (rand($bonus_min, $bonus_max) > $average) {
            // 在平均线上减钱
            $temp = $bonus_min + xRandom($bonus_min, $average);
            $result[$i] = $temp;
            $bonus_total -= $temp;
        } else {
            // 在平均线上加钱
            $temp = $bonus_max - xRandom($average, $bonus_max);
            $result[$i] = $temp;
            $bonus_total -= $temp;
        }
    }
    // 如果还有余钱,则尝试加到小红包里,如果加不进去,则尝试下一个。
    while ($bonus_total > 0) {
        for ($i = 0; $i < $bonus_count; $i++) {
            if ($bonus_total > 0 && $result[$i] < $bonus_max) {
                $result[$i]++;
                $bonus_total--;
            }
        }
    }
    // 如果钱是负数了,还得从已生成的小红包中抽取回来
    while ($bonus_total < 0) {
        for ($i = 0; $i < $bonus_count; $i++) {
            if ($bonus_total < 0 && $result[$i] > $bonus_min) {
                $result[$i]--;
                $bonus_total++;
            }
        }
    }
    return $result;
}
Пример #3
0
<?php

function sqr($num)
{
    return $num * $num;
}
print sqr(3);
<html>
<body>

<?php 
function sqr($par)
{
    return $par * $par;
}
function inc(&$par)
{
    ++$par;
}
$txt1 = "Hello World!";
$txt2 = "What a nice day!";
$txt = $txt1 . " " . $txt2;
echo $txt . "<br>" . strlen($txt) . '\\n' . strpos($txt, "World") . '<br>';
echo sqr(5) . '<br>';
$par = 5;
inc($par);
echo $par;
?>

</body>
</html>
Пример #5
0
<?php

require 'functions.php';
print "sqr(3)=" . sqr(3);
Пример #6
0
use const nspl\args\nonEmpty;
use const nspl\args\arrayAccess;
use function nspl\args\withKeys;
use function nspl\args\withMethod;
use function nspl\args\expects;
use function nspl\args\expectsAll;
use function nspl\args\expectsOptional;
use function nspl\args\expectsToBe;
// 1. Specify scalar parameter type
function sqr($x)
{
    expects(numeric, $x);
    return $x * $x;
}
try {
    sqr('hello world');
} catch (\InvalidArgumentException $e) {
    echo $e->getMessage() . "\n";
}
// 2. Specify several types
function first($sequence)
{
    expects([nonEmpty, arrayAccess, string], $sequence);
    return $sequence[0];
}
try {
    first(12);
} catch (\InvalidArgumentException $e) {
    echo $e->getMessage() . "\n";
}
// 3. Specify several parameters of the same type
Пример #7
0
function de($method, $s)
{
    switch ($method) {
        case 'snd':
            break;
        case 'bin':
            $s = bin_de($s);
            break;
        case 'dec':
            $s = dec_de($s);
            break;
        case 'oct':
            $s = oct_de($s);
            break;
        case 'hex':
            $s = hex_de($s);
            break;
        case 'rot':
            $s = rotate($s, 26 - $_POST['rot'], 10 - $_POST['nrot']);
            break;
        case 'url':
            $s = $_POST['url_raw'] == 'on' ? rawurldecode($s) : urldecode($s);
            break;
        case 'ur2':
            $s = urldecode($s);
            break;
        case 'raw':
            break;
        case 'stmwth':
            break;
        case 'rev':
            $s = str_rev($s);
            break;
        case 'spe':
            $s = html_entity_decode($s);
            break;
        case 'hen':
            break;
        case 'nbase':
            $s = base_conv($s, 1);
            break;
        case 'base':
            $s = base_de($s);
            break;
        case 'md5':
            addmsg(INFO, '<a href="http://gdataonline.com/seekhash.php" target="_blank">http://gdataonline.com/seekhash.php</a>');
            break;
        case 'crypt':
            break;
        case 'stu':
            break;
        case 'crv':
            $s = case_rev($s);
            break;
        case 'stl':
            break;
        case 'ucw':
            break;
        case 'bbs':
            break;
        case 'bsd':
            break;
        case 'srt':
            $s = mysort($s, 1);
            break;
        case 'rpt':
            break;
        case 'unq':
            $s = uniq($s, 1);
            break;
        case 'rf':
            $s = sqr($s, 1);
            break;
        case 'pcr':
            break;
        case 'acc':
            $s = accumulation($s, 1);
            break;
        case 'uue':
            $s = convert_uudecode($s);
            break;
        case 'det':
            break;
        case 'ttb':
            break;
        case 'mut':
            break;
        case 'sha1':
            break;
        case 'msk':
            break;
        case 'ref':
            $s = sqr_reflect($s);
            break;
        case 'crc16':
            break;
        case 'crc32':
            break;
        case 'sta':
            break;
        case 'rep':
            $s = gen_rep_de($s);
            break;
        case 'cor':
            break;
        case 'pcm':
            break;
        case 'ascii':
            $s = ASCIIFilter_de($s);
            break;
        case 'ave':
            break;
        case 'miv':
            break;
        case 'mmtp':
            break;
        case 'mro':
            $s = matrix_rotate($s, 1);
            break;
        case 'mtr':
            $s = matrix_transpose($s);
            break;
        case 'cac':
            break;
        case 'ctr':
            break;
        case 'swd':
            break;
        case 'che':
            break;
        case 'key':
            $s = key_xor($_POST['key'], $s);
            break;
        case 'bre':
            $s = bit_rev($s);
            break;
        case 'bod':
            $s = bitorder_de($_POST['order'], $s);
            break;
        case 'tra':
            $s = tran(12 - $_POST['transpose'], $s, 1);
            break;
        case 'quot':
            break;
        default:
            addmsg(ERR, 'Undefined Method: ' . $method);
    }
    return $s;
}