diff --git a/answer.php b/answer.php
index 4fcf134..b6b5a43 100644
--- a/answer.php
+++ b/answer.php
@@ -17,8 +17,7 @@ $chosen_answer = isset($_GET['answer']) ? $_GET['answer'] : '';
 $chosen_answer = (($chosen_answer === '0') || ($chosen_answer && gettype(+$chosen_answer) == 'integer')) ? +$_GET['answer'] : -1;
 
 function calculate_points($time) {
-    $points = $time < 2000 ? 100 : 141.1421 - 0.02842916 * $time + 0.000004132312 * pow($time, 2)
-        - 3.432331e-10 * pow($time, 3) + 1.391508e-14 * pow($time, 4) - 2.166078e-19 * pow($time, 5);
+    $points = $time < 2000 ? 100 : 205 - 1/2 * (205 + sqrt(-3975 + 2 * $time));
     $points = $points < 10 ? 100 : intval($points * 10);
     return $points;
 }
@@ -51,7 +50,7 @@ if($uid == '') {
     //set high score
     if($db->query('SELECT EXISTS (SELECT 1 FROM "Highscores" WHERE "Users_ID" = $1 AND "Categories_ID" = $2)',
             array($uid, $cid))['data'][0]['exists'] == 'f') {
-        $db->query('INSERT INTO "Highscores" ("Users_ID", "Categories_ID"), VALUES ($1, $2)', array($uid, $cid));
+        $db->query('INSERT INTO "Highscores" ("Users_ID", "Categories_ID") VALUES ($1, $2)', array($uid, $cid));
     }
     $old_hi_data = $db->query('SELECT "score", "answered_questions" FROM "Highscores" WHERE "Users_ID" = $1
         AND "Categories_ID" = $2', array($uid, $cid))['data'][0];