} elseif (isset($_GET['time'])) {
if (VerifyTime($_GET['time'])) {
echo $lang['valid'];
} else {
echo $lang['invalid'] . ': ' . $lang['time_request'];
}
} elseif (isset($_GET['contestname'])) {
if (VerifyContestName($_GET['contestname'])) {
echo $lang['valid'];
} else {
echo $lang['invalid'] . ': ' . $lang['contestname_request'];
}
} elseif (isset($_GET['problem'])) {
if (VerifyProblem($_GET['problem'])) {
echo $lang['valid'];
} else {
echo $lang['invalid'] . ': ' . $lang['problem_request'];
}
} elseif (isset($_GET['score'])) {
if (VerifyScore($_GET['score'])) {
echo $lang['valid'];
} else {
echo $lang['invalid'] . ': ' . $lang['score_request'];
}
} elseif (isset($_GET['studentid'])) {
if (VerifyStudentId($_GET['studentid'])) {
echo $lang['valid'];
} else {
echo $lang['invalid'] . ': ' . $lang['studentid_request'];
}
}
}
if ($action == 'edit') {
if (empty($_GET['pid'])) {
showmessage($lang['invalid_operation'], 'index.php');
}
//Without a pid
$query = $db->query("SELECT * FROM `{$tablepre}problem` WHERE `id`='{$_GET['pid']}'");
if (!$db->num_rows($query)) {
showmessage($lang['invalid_operation'], 'index.php');
}
//pid not found
$problem = $db->fetch_array($query);
$problem['problem'] = unserialize(base64_decode($problem['problem']));
//print_r($problem);
if (submitcheck('edit')) {
if (!VerifyScore($score)) {
showmessage($lang['edit_fail'], "admin.php?action=edit&pid={$pid}");
}
$problemset = array();
$problemset['problem'] = $problem;
switch ($ptype) {
case '1':
//$manual = 0;
$problemset['answer'] = $blankanswer;
$problemset['judge'] = trim($blankjudge) == '' ? "^\\s*{$blankanswer}\\s*\$" : $blankjudge;
break;
case '2':
$manual = 0;
$tempproblemset['choice'] = explode("\n", $choice);
$m = 1;
foreach ($tempproblemset['choice'] as $key => $option) {
