From d83a8b9be2e73387594ccd7f95fe0264c0494b3f Mon Sep 17 00:00:00 2001
From: Jessica Cai <115125748+JessCai06@users.noreply.github.com>
Date: Sun, 31 Aug 2025 14:31:37 -0400
Subject: [PATCH 1/3] Update fib.py

---
 fib.py | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/fib.py b/fib.py
index 421cfab..3e215e0 100644
--- a/fib.py
+++ b/fib.py
@@ -6,7 +6,9 @@
 Negative numbers should return None
 """
 def fibonacci(position):
-  if(position == 1 or position == 2):
+  if(position < 0):
+    return None
+  if(position == 0 || position == 1):
     return 1
   return fibonacci(position - 1) + fibonacci(position - 2)
 

From 9c600e7ba8dfec47c3227abc4d2ec1ead40af435 Mon Sep 17 00:00:00 2001
From: Jessica Cai <115125748+JessCai06@users.noreply.github.com>
Date: Sun, 31 Aug 2025 14:34:13 -0400
Subject: [PATCH 2/3] fixing syntax error

---
 fib.py | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/fib.py b/fib.py
index 3e215e0..137e69b 100644
--- a/fib.py
+++ b/fib.py
@@ -8,7 +8,7 @@
 def fibonacci(position):
   if(position < 0):
     return None
-  if(position == 0 || position == 1):
+  if(position == 0 or position == 1):
     return 1
   return fibonacci(position - 1) + fibonacci(position - 2)
 

From af35b2f498f0a7c0332eb5c3a91bf09c4c2f5b11 Mon Sep 17 00:00:00 2001
From: Jessica Cai <115125748+JessCai06@users.noreply.github.com>
Date: Sun, 31 Aug 2025 14:36:27 -0400
Subject: [PATCH 3/3] arithmetic errors

---
 fib.py | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/fib.py b/fib.py
index 137e69b..4d57ea1 100644
--- a/fib.py
+++ b/fib.py
@@ -8,7 +8,9 @@
 def fibonacci(position):
   if(position < 0):
     return None
-  if(position == 0 or position == 1):
+  if(position == 0):
+    return 0
+  if(position == 2 or position == 1):
     return 1
   return fibonacci(position - 1) + fibonacci(position - 2)