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October 7, 2021 19:41
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random3.php
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<?php | |
$xcount = [0 => 0, 1 => 0, 2 => 0]; | |
for ($i0 = 0; $i0 < 3*333; ++$i0) { | |
for ($i1 = 0; $i1 < 2; ++$i1) { | |
for ($i2 = 0; $i2 < 2; ++$i2) { | |
for ($i3 = 0; $i3 < 2; ++$i3) { | |
for ($i4 = 0; $i4 < 2; ++$i4) { | |
for ($i5 = 0; $i5 < 2; ++$i5) { | |
for ($i6 = 0; $i6 < 2; ++$i6) { | |
++$xcount[random3(rr3x3($i1, $i2, $i3, $i4, $i5, $i6))]; | |
}}}}}} | |
} | |
var_dump($xcount); | |
$xcount = [0 => 0, 1 => 0, 2 => 0]; | |
$x = 500 * 3 * (2 * 2 * 2 * 2 * 2 * 2); | |
while ($x--) { | |
++$xcount[random3( | |
rr3x3( | |
random2(), | |
random2(), | |
random2(), | |
random2(), | |
random2(), | |
random2() | |
) | |
)]; | |
} | |
var_dump($xcount); | |
/** | |
* @return 0|1|2 | |
*/ | |
function random3($x): int | |
{ | |
$num = (int) "{$x[0]}{$x[1]}{$x[2]}"; | |
static $mem = 0; | |
if ($num === 111) { | |
if (++$mem % 2) { | |
$num = $mem; | |
} | |
if ($mem === 6) $mem = 0; | |
} | |
return $num % 3; | |
} | |
//1,1,1 | |
//1,1,2 | |
//1,1,3 | |
//всегда полная равнораспределенная комбинация 1-2-3 в каждом регистре | |
function rr3x3($i1, $i2, $i3, $i4, $i5, $i6): array | |
{ | |
$x1 = 1 + $i1 + $i2; | |
$x2 = 1 + $i3 + $i4; | |
$x3 = 1 + $i5 + $i6; | |
if ($x2 === 2) { | |
$x2 = 1; | |
} elseif ($x2 === 1) { | |
$x2 = 2; | |
} | |
if ($x3 === 2) { | |
$x3 = 3; | |
} elseif ($x3 === 3) { | |
$x3 = 2; | |
} | |
return [$x1, $x2, $x3]; | |
} | |
function random2(): int | |
{ | |
return random_int(0, 1); | |
} |
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https://3v4l.org/vdWjE#v8.0.11
array(3) {
[0]=>
int(21312)
[1]=>
int(21312)
[2]=>
int(21312)
}
array(3) {
[0]=>
int(32008)
[1]=>
int(31935)
[2]=>
int(32057)
}