$data = array(100, 4, 200, 1, 3, 2);
function lcs($data)
{
if (count($data) == 0) {
return 0;
}
// Use a hashSet
foreach ($data as $key => $value) {
$result[$value] = 1;
}
$max = 1;
for ($i = 0; $i < count($data); $i++) {
$left = $data[$i] - 1;
$right = $data[$i] + 1;
$count = 1;
while (in_array($left, array_keys($result))) {
$count++;
unset($result[$left]);
$left--;
}
while (in_array($right, array_keys($result))) {
$count++;
unset($result[$right]);
$right++;
}
$max = max($count, $max);
}
return $max;
}
var_dump(lcs($data));
//4
public function comparer($new, $old)
{
$paras = $this->diff->segmenter($new);
$paras_old = $this->diff->segmenter($old);
if ($this->diff->fuzzy()) {
list($trans_rev, $trans) = apparier_paras($paras_old, $paras);
$lcs = lcs_opt($trans);
$lcs_rev = array_flip($lcs);
} else {
list($trans_rev, $trans) = lcs($paras_old, $paras);
$lcs = $trans;
$lcs_rev = $trans_rev;
}
reset($paras_old);
reset($paras);
reset($lcs);
unset($i_old);
$fin_old = false;
foreach ($paras as $i => $p) {
if (!isset($trans[$i])) {
// Paragraphe ajoute
$this->diff->ajouter($p);
continue;
}
$j = $trans[$i];
if (!isset($lcs[$i])) {
// Paragraphe deplace
$this->diff->deplacer($p, $paras_old[$j]);
continue;
}
if (!$fin_old) {
// Paragraphes supprimes jusqu'au paragraphe courant
if (!isset($i_old)) {
list($i_old, $p_old) = each($paras_old);
if (!$p_old) {
$fin_old = true;
}
}
while (!$fin_old && $i_old < $j) {
if (!isset($trans_rev[$i_old])) {
$this->diff->supprimer($p_old);
}
unset($i_old);
list($i_old, $p_old) = each($paras_old);
if (!$p_old) {
$fin_old = true;
}
}
}
// Paragraphe n'ayant pas change de place
$this->diff->comparer($p, $paras_old[$j]);
}
// Paragraphes supprimes a la fin du texte
if (!$fin_old) {
if (!isset($i_old)) {
list($i_old, $p_old) = each($paras_old);
if (!strlen($p_old)) {
$fin_old = true;
}
}
while (!$fin_old) {
if (!isset($trans_rev[$i_old])) {
$this->diff->supprimer($p_old);
}
list($i_old, $p_old) = each($paras_old);
if (!$p_old) {
$fin_old = true;
}
}
}
if (isset($i_old)) {
if (!isset($trans_rev[$i_old])) {
$this->diff->supprimer($p_old);
}
}
return $this->diff->resultat();
}
$data[] = fgets($inputFile);
}
fclose($inputFile);
$t = explode(' ', trim($data[0]));
$s1 = explode(' ', trim($data[1]));
$s2 = explode(' ', trim($data[2]));
$n = $t[0];
$m = $t[1];
//AATCC
//$s1 = array('A', 'A', 'T', 'C', 'C');
//$s1 = 'AATCC';
//ACACG
//$s2 = array('A', 'C', 'A', 'C', 'G');
//$s2 = 'ACACG';
$result = array();
$c = lcs($s1, $s2);
backtrack($c, $s1, $s2, count($s1), count($s2), $result);
echo implode(' ', array_reverse($result));
function lcs($s1, $s2)
{
$length1 = count($s1);
//strlen($s1);
$length2 = count($s2);
//strlen($s2);
$c = array();
for ($i = 0; $i < $length1 + 1; $i++) {
for ($j = 0; $j < $length2 + 1; $j++) {
$c[$i][$j] = 0;
}
}
for ($i = 1; $i < $length1 + 1; $i++) {
