Round robin with gender split

Asked Jul 20 '17 at 14:51

Active Jul 20 '17 at 14:51

Viewed 183 times

How to make round robin with 2 arrays

$male = array('peter','john');
$female = array('anna','susan');

Where eg. peter can't talk with john. Only with girls. Here is my working round robin code but only for 1 array

function roundRobin( array $teams ){

        if (count($teams)%2 != 0){
            array_push($teams,"hold");
        }
        $away = array_splice($teams,(count($teams)/2));
        $home = $teams;
        for ($i=0; $i < count($home)+count($away)-1; $i++)
        {
            for ($j=0; $j<count($home); $j++)
            {
                $round[$i][$j]["Home"]=$home[$j];
                $round[$i][$j]["Away"]=$away[$j];
            }
            if(count($home)+count($away)-1 > 2)
            {
                $s = array_splice( $home, 1, 1 );
                $slice = array_shift( $s  );
                array_unshift($away,$slice );
                array_push( $home, array_pop($away ) );
            }
        }
        return $round;
    }

the output is

Round: 1
peter with susan, john with anna

Round: 2 peter with john, susan with anna etc....

asked Jul 20 '17 at 14:51

Szmerd

So they must be paired differently the second round? It can't be random (where there's a chance of same pairs)? – Qirel Jul 20 '17 at 14:54
@Qirel yes male with female only – Szmerd Jul 20 '17 at 14:55
Yes, but can Peter be paired with Susan the second (or third, or a later) round too, or is it only once? – Qirel Jul 20 '17 at 15:02
@Qirel only once. – Szmerd Jul 20 '17 at 15:03
What should it do if it doesn't match with genders? – Qirel Jul 20 '17 at 18:07
@Qirel 'hold' eg. peter with hold – Szmerd Jul 21 '17 at 08:00
@Szmerd did you ever manage to solve this? I'm looking for a solution to the exact same problem – JMIT Oct 04 '22 at 06:54

Round robin with gender split

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