3v4l.org

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<?php $inside = 0; $loop = 0; $loops = 1e5; while (++$loop < $loops) { $a = rand(0, 1); while ($a!==rand(0,1)) $inside++; $inside--; } echo 'Deviation: ', $inside, ' over ', $loops, " iterations \n\n"; ?>

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104.58 ms | 1811 KiB | 5 Q