Kevin Gessner
Brain Teaser
PHP solution to this brain teaser – it only took a few minutes.
In:
$array = array('a', 'b', 'c', 'c', 'd','e', 'e',
'e', 'e', 'e', 'f', 'e', 'f', 'e',
'f', 'a', 'a', 'a', 'f', 'f', 'f');
Out:
abccdee<span>eee</span>fefefaa<span>a</span>ff<span>f</span>
My Solution:
$curr = '';
$count = 0;
foreach($array AS $letter) {
if($curr != $letter) {
if($count > 2) // more than two dupes
print '</span>';
$count = 0;
$curr = $letter;
}
if($count == 2) print '<span>';
$count++;
print $letter . ' ';
}