};
$rec([], $arr);
return $result;
}
$people = array_keys($sit);
$people[] = 'Self';
$permutations = permute($people);
function calcScore($seats)
{
global $sit;
$len = count($seats);
$score = 0;
for ($i = 0; $i < $len; $i++) {
$self = $seats[$i];
$left = $seats[($i - 1 + $len) % $len];
$right = $seats[($i + 1 + $len) % $len];
if ($left !== 'Self') {
$score += $sit[$self][$left];
}
if ($right !== 'Self') {
$score += $sit[$self][$right];
}
}
return $score;
}
$scores = [];
foreach ($permutations as $perm) {
$idx = implode(', ', $perm);
$scores[$idx] = calcScore($perm);
}
var_dump(max($scores));
// echo "deleting responses";
$sql = "DELETE FROM tbl_response" . $_SESSION['qnstable'] . " WHERE tbl_response" . $_SESSION['qnstable'] . ".fld_student_id='" . $_SESSION['studid'] . "'";
mysqli_query($conn, $sql);
// echo "deleting scores";
$sql = "DELETE FROM tbl_stud_testscore\n WHERE fld_student_id='" . $_SESSION['studid'] . "'\n AND fld_test_id='" . $_SESSION['testid'] . "'";
mysqli_query($conn, $sql);
$sql = "INSERT INTO tbl_response" . $_SESSION['qnstable'] . " (fld_student_id,fld_question_id,fld_response) VALUES";
for ($x = 1; $x <= $_SESSION['numq']; $x++) {
$sql .= "('" . $_SESSION['studid'] . "',{$x},'" . mysqli_real_escape_string($conn, $response[$x]) . "'),";
}
$sql = rtrim($sql, ",");
mysqli_query($conn, $sql) or die("damn!" . mysqli_error($conn) . "<br><br>" . $sql);
//SELECT wrongly answered questions
$query = callWrong($conn);
//CALCULATE score
$percent_score = calcScore($query);
//INSERT scores table
$sql = "insert into tbl_stud_testscore(fld_student_id, fld_test_id, fld_score) VALUES('" . $_SESSION['studid'] . "', '" . $_SESSION['testid'] . "',{$percent_score})";
mysqli_query($conn, $sql) or die("woah!" . mysqli_error($conn));
}
$percent_score = round($percent_score);
if ($_SESSION['retain'] == -1) {
if ($percent_score != 100) {
$bob = $_SESSION['testid'] . "/" . $_SESSION['testblurb'];
print "<div id='again'>\n{$percent_score}%\n <form action='" . $_SESSION['global_url'] . "/test.php' method='get'>\n\n <input type='submit' id='btnAgain' value='' />\n\n </form>\n</div>";
} else {
print "<div id='again'>만점</div>";
}
} else {
print "<div id='again'>\n{$percent_score}%</div>";
}