From d46c14d1a70a8dee0dd5c9270f8b9e0deaf52e20 Mon Sep 17 00:00:00 2001
From: dilsahsule <dilsahsule@gmail.com>
Date: Fri, 19 Dec 2025 21:13:38 +0300
Subject: [PATCH 1/2] =?UTF-8?q?=C3=96dev:=20circle=5Farea=20fonksiyonu=20t?=
 =?UTF-8?q?amamland=C4=B1?=
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

---
 demo.py | 8 ++++++--
 1 file changed, 6 insertions(+), 2 deletions(-)

diff --git a/demo.py b/demo.py
index 4592eec..f362bbe 100644
--- a/demo.py
+++ b/demo.py
@@ -1,5 +1,9 @@
+"""Demo module: circle area calculation"""
 
+import math
 
 def circle_area(radius):
-    """Returns the area of the circle of given radius"""
-    pass  # YOUR CODE HERE
+    """Calculate the area of a circle given its radius."""
+    if radius < 0:
+        return 0
+    return math.pi * radius**2

From 44cc94d9ec7595f51d11b5584ff1ff65d54db0fd Mon Sep 17 00:00:00 2001
From: dilsahsule <dilsahsule@gmail.com>
Date: Fri, 19 Dec 2025 21:18:11 +0300
Subject: [PATCH 2/2] Kutlama notu eklendi

---
 README.md | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/README.md b/README.md
index d9ec3f8..56184c2 100644
--- a/README.md
+++ b/README.md
@@ -25,4 +25,4 @@ git add demo.py
 git commit --message "Solved the first challenge of the workintech :)"
 git push origin master
 ```
-
+## Tamamlandı 🎉