diff --git a/Codes/Code-A1.py b/Codes/Code-A1.py
new file mode 100755
index 0000000..1b0d923
--- /dev/null
+++ b/Codes/Code-A1.py
@@ -0,0 +1,17 @@
+# Problem Statement: Write a program non-recursive and recursive program to calculate Fibonacci numbers and analyze their time and space complexity.
+
+# Non-recursion
+def fibonacci(n):
+    fib_series = []
+    a = 0
+    b = 1
+
+    for i in range(n):
+        fib_series.append(a)
+        a = b
+        b = a + b
+
+    return fib_series
+
+n = int(input("Enter total numbers to print in fibonacci series:\t"))
+print(fibonacci(n))
diff --git a/README.md b/README.md
index d9e2085..a64ee65 100644
--- a/README.md
+++ b/README.md
@@ -10,6 +10,8 @@ This repository contains valuable resources for the Design and Analysis of Algor
 
 ### Codes
 
+1. [Code-A1 - Fibonacci Series](Codes/Code-A1.py)
+
 ### Practical
 
 ### Question Papers