diff --git a/progp/24-12-19 -- fakultät/fahrkosten.php b/progp/24-12-19 -- fakultät/fahrkosten.php
new file mode 100644
index 0000000..03f8aeb
--- /dev/null
+++ b/progp/24-12-19 -- fakultät/fahrkosten.php	
@@ -0,0 +1,102 @@
+
+<div class="container">
+    <h1>Fahrkosten Berechnung</h1>
+    <p>Bitte geben Sie die folgenden Werte ein:</p>
+<form action="">
+    <label>Durschnittlicher Verbrauch: <input type="number" name="avg_verbrauch" min="1"></label><br>
+    <label></label>Strecke: <input type="number" name="strecke" min="1"></label><br>
+    <label>Preis pro Liter: <input type="float" name="preis_pro_liter" min="0.1"></label><br>
+    <button type="submit" class="rechnen">BERECHNEN</button><br>
+</form>
+<?php
+
+$verbrauch = $_REQUEST["avg_verbrauch"];
+$strecke = $_REQUEST["strecke"];
+$preis = $_REQUEST["preis_pro_liter"];
+
+$ergebnis = $verbrauch / 100; // Liter pro 100km in Liter pro km
+$ergebnis = $ergebnis * $strecke; // Liter pro km in Liter für die Strecke
+$ergebnis = $ergebnis * $preis; // Liter für die Strecke in Preis
+
+echo "Die Fahrt kostet: <span>$ergebnis €</span>";
+
+
+?>
+</div>
+<style>
+    .container {
+        width: 50%;
+        margin: 0 auto;
+        background-color: white;
+        padding: 20px;
+        border-radius: 10px;
+        border: 10px solid #3dc21b;
+    }
+    span {
+        color: #d32f2f;
+        font-size: 36px;
+        font-weight: bold;
+    }
+     *{
+        text-align: center;
+        font-size: 24px;
+        margin: 10px;
+    }
+    .rechnen {
+            display: flex;
+            justify-content: center;
+            box-shadow: 0px 0px 27px 8px #3dc21b;
+            background: linear-gradient(to bottom, #44c767 5%, #5cbf2a 100%); 
+            background-color: #44c767;
+            border-radius: 38px;
+            border: 1px solid #18ab29;
+            display: inline-block;
+            cursor: pointer;
+            color: #ffffff;
+            font-family: Arial;
+            font-weight: bold;
+            padding: 23px 48px;
+            text-decoration: none;
+            animation: pulse-blur 1.5s infinite;
+            margin: 25px;
+        }
+
+        .rechnen:active {
+            position: relative;
+            top: 1px;
+        }
+        .rechnen:hover {
+            background-color: red;
+            box-shadow: 0px 0px 27px 8px red;
+            background: linear-gradient(to bottom, red 5%, red 100%); 
+            border-radius: 38px;
+            border: 1px solid red;
+            animation: pulse-blur-hover 1.5s infinite;
+        }
+
+        @keyframes pulse-blur {
+            25% {
+                box-shadow: 0px 0px 27px 8px #3dc21b;
+            }
+            50% {
+                box-shadow: 0px 0px 37px 12px #3dc21b;
+            }
+            75% {
+                box-shadow: 0px 0px 27px 8px #3dc21b;
+            }
+        
+        }
+
+        @keyframes pulse-blur-hover {
+            25% {
+                box-shadow: 0px 0px 27px 8px red;
+            }
+            50% {
+                box-shadow: 0px 0px 37px 12px red;
+            }
+            75% {
+                box-shadow: 0px 0px 27px 8px red;
+            }
+
+        }
+</style>
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diff --git a/progp/24-12-19 -- fakultät/fakultaet.php b/progp/24-12-19 -- fakultät/fakultaet.php
new file mode 100644
index 0000000..cd507ad
--- /dev/null
+++ b/progp/24-12-19 -- fakultät/fakultaet.php	
@@ -0,0 +1,85 @@
+<!DOCTYPE html>
+<html lang="en">
+<head>
+    <meta charset="UTF-8">
+    <meta name="viewport" content="width=device-width, initial-scale=1.0">
+    <title>Fakultät Berechnung</title>
+    <style>
+        body {
+            font-family: Arial, sans-serif;
+            background-color: #f2f2f2;
+            text-align: center;
+            padding: 50px;
+            background-image: url('weihnachten_1.jpg');
+            background-position: center;
+            background-repeat: no-repeat;
+            background-size: 100%;
+        }
+        .container {
+            background-color: #fff;
+            padding: 20px;
+            border-radius: 10px;
+            box-shadow: 0 0 10px rgba(0, 0, 0, 0.1);
+            display: inline-block;
+        }
+        h1 {
+            color: #d32f2f;
+        }
+        input[type="number"] {
+            padding: 10px;
+            margin: 10px 0;
+            border: 1px solid #ccc;
+            border-radius: 5px;
+        }
+        input[type="submit"] {
+            padding: 10px 20px;
+            background-color: #d32f2f;
+            color: #fff;
+            border: none;
+            border-radius: 5px;
+            cursor: pointer;
+        }
+        input[type="submit"]:hover {
+            background-color: #b71c1c;
+        }
+        span {
+            color: #d32f2f;
+            font-weight: bold;
+        }
+        .text_2 {
+            font-size: 20px;
+            margin-top: 20px;
+        }
+    </style>
+</head>
+<body background-image:progp\bilder\weihnachten_1.jpg>
+    <div class="container">
+        <h1>Fakultät Berechnung</h1>
+        <form method="post">
+            <label for="number">Geben Sie eine Nummer ein:</label><br>
+            <input type="number" id="number" name="number" required><br>
+            <input type="submit" value="Berechnen">
+        </form>
+        <?php
+        function fak($n) {
+            if ($n < 0) {
+                return "Ungültige Eingabe";
+            }
+            if ($n == 0) {
+                return 1;
+            }
+            $result = 1;
+            for ($i = 1; $i <= $n; $i++) {
+                $result *= $i;
+            }
+            return $result;
+        }
+
+        if ($_SERVER["REQUEST_METHOD"] == "POST") {
+            $number = intval($_POST["number"]);
+            echo "<p class='text_2'>Die Fakultät von <span>$number</span> ist <span>" . fak($number) . "</span></p>";
+        }
+        ?>
+    </div>
+</body>
+</html>
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diff --git a/progp/24-12-19 -- fakultät/weihnachten_1.jpg b/progp/24-12-19 -- fakultät/weihnachten_1.jpg
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