Onsite Round 2 (2 People only on general & programming concepts):

* Simple introduction from both sides

* Do you know anything about A/B testing?

* How will judge that if a new experiment done on our website was successful. For e.g. Let's say we sta

Question

Onsite Round 2 (2 People only on general & programming concepts):

* Simple introduction from both sides

* Do you know anything about A/B testing?

* How will judge that if a new experiment done on our website was successful. For e.g. Let's say we sta

hacker · Accepted Answer

#!/bin/perl
use Data::Dumper;
#
sub swap {
  ($_[1], $_[0]) = ($_[0], $_[1]);
}

$x = 10;
$y = 15;

print "$x, $y
";
swap($x, $y);
print "$x, $y
";

@a = (1,4,5,2,1,6,7);
print join ",", @a;
print "
";
$n = scalar(@a);
while($n > 0) {
  my $i = rand($n);
  swap($a[$i], $a[--$n]);
}
print join ",", @a ;
print "
";

Sigiloso · Answer

$a = [1,4,5,6,2,3,5,8,9,3];
printRand($a);

function printRand($a) {
    $l = count($a);

    if ($l === 0) {
        return;
    }

    if ($l $v) {
        if (!isset($rands[$k])) {
            $newA[] = $a[$k];
            continue;
        }

        $c++;
        print $a[$k];

        if ($c === 3) {
            print "
";
        } else {
            print ',';
        }
    }

    return printRand($newA);
}

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