diff --git a/2022-12-09-Big-O-Notation/Constant/Constant.csproj b/2022-12-09-Big-O-Notation/Constant/Constant.csproj
new file mode 100644
index 0000000..0a53fc4
--- /dev/null
+++ b/2022-12-09-Big-O-Notation/Constant/Constant.csproj
@@ -0,0 +1,11 @@
+
+
+
+ Exe
+ net7.0
+ Constant
+ disable
+ enable
+
+
+
diff --git a/2022-12-09-Big-O-Notation/Constant/Program.cs b/2022-12-09-Big-O-Notation/Constant/Program.cs
new file mode 100644
index 0000000..2225b2d
--- /dev/null
+++ b/2022-12-09-Big-O-Notation/Constant/Program.cs
@@ -0,0 +1,23 @@
+using System;
+
+namespace Constant
+{
+ internal class Program
+ {
+ static void Main(string[] args)
+ {
+ Console.WriteLine("Constant Example");
+ Console.WriteLine("Another Line");
+ Console.WriteLine("Another Line");
+ Console.WriteLine("Another Line");
+
+ for (int i = 0; i < 10; i++)
+ {
+ Console.WriteLine(i);
+ }
+ }
+ }
+}
+
+
+
diff --git a/2022-12-09-Big-O-Notation/Exponential/Exponential.csproj b/2022-12-09-Big-O-Notation/Exponential/Exponential.csproj
new file mode 100644
index 0000000..4ddf2a8
--- /dev/null
+++ b/2022-12-09-Big-O-Notation/Exponential/Exponential.csproj
@@ -0,0 +1,11 @@
+
+
+
+ Exe
+ net7.0
+ Exponential
+ disable
+ enable
+
+
+
diff --git a/2022-12-09-Big-O-Notation/Exponential/Program.cs b/2022-12-09-Big-O-Notation/Exponential/Program.cs
new file mode 100644
index 0000000..ddcbf18
--- /dev/null
+++ b/2022-12-09-Big-O-Notation/Exponential/Program.cs
@@ -0,0 +1,21 @@
+using System;
+
+namespace Exponential
+{
+ internal class Program
+ {
+ static void Main(string[] args)
+ {
+ Console.WriteLine(fib(6));
+ }
+
+ static int fib(int num)
+ {
+ if (num <= 1) return num;
+ return fib(num - 2) + fib(num - 1);
+ }
+ }
+}
+
+
+
diff --git a/2022-12-09-Big-O-Notation/Linear/Linear.csproj b/2022-12-09-Big-O-Notation/Linear/Linear.csproj
new file mode 100644
index 0000000..04708b2
--- /dev/null
+++ b/2022-12-09-Big-O-Notation/Linear/Linear.csproj
@@ -0,0 +1,11 @@
+
+
+
+ Exe
+ net7.0
+ Linear
+ disable
+ enable
+
+
+
diff --git a/2022-12-09-Big-O-Notation/Linear/Program.cs b/2022-12-09-Big-O-Notation/Linear/Program.cs
new file mode 100644
index 0000000..17b62b2
--- /dev/null
+++ b/2022-12-09-Big-O-Notation/Linear/Program.cs
@@ -0,0 +1,25 @@
+using System;
+
+namespace Linear
+{
+ internal class Program
+ {
+ static void Main(string[] args)
+ {
+ var n = 10;
+
+ for (int i = 0; i < n; i++)
+ {
+ Console.WriteLine(i);
+ }
+
+ for (int i = 0; i < n; i++)
+ {
+ Console.WriteLine(i);
+ }
+ }
+ }
+}
+
+
+
diff --git a/2022-12-09-Big-O-Notation/Quadratic/Program.cs b/2022-12-09-Big-O-Notation/Quadratic/Program.cs
new file mode 100644
index 0000000..f4eeedd
--- /dev/null
+++ b/2022-12-09-Big-O-Notation/Quadratic/Program.cs
@@ -0,0 +1,24 @@
+using System;
+
+namespace Quadratic
+{
+ internal class Program
+ {
+ static void Main(string[] args)
+ {
+ var n = 10;
+
+ for (int i = 1; i <= n; i++)
+ {
+ for (int j = 1; j <= i; j++)
+ {
+ Console.Write("0 ");
+ }
+ Console.WriteLine();
+ }
+ }
+ }
+}
+
+
+
diff --git a/2022-12-09-Big-O-Notation/Quadratic/Quadratic.csproj b/2022-12-09-Big-O-Notation/Quadratic/Quadratic.csproj
new file mode 100644
index 0000000..926ec16
--- /dev/null
+++ b/2022-12-09-Big-O-Notation/Quadratic/Quadratic.csproj
@@ -0,0 +1,11 @@
+
+
+
+ Exe
+ net7.0
+ Quadratic
+ disable
+ enable
+
+
+
diff --git a/README.md b/README.md
index 1edadb6..f2852b8 100644
--- a/README.md
+++ b/README.md
@@ -8,6 +8,7 @@ I will add new code as soon as I am done editing the videos. So, you might find
| Date Published | Video | Link |
| -------------- | ----------------------------------------------------------------------------------------------------- | ---------------------------------------------------------------- |
+| 2022-12-09 | [Big O Notation](https://youtu.be/aIG48ldbpRI) | [code](2022-12-09-Big-O-Notation) |
| 2022-11-25 | [Stack vs Heap](https://youtu.be/5OJRqkYbK-4) | [code](2022-11-25-Stack-Vs-Heap) |
| 2022-11-11 | [Automate Your Life With Python (File Management Step By Step Example)](https://youtu.be/1dgnl7oCVTY) | [code](2022-11-11-Automate-Your-Life-With-Python/move-photos.py) |
| 2022-10-21 | [Bitwise Operators and WHY we use them](https://youtu.be/igIjGxF2J-w) | [code](2022-10-21-Bitwise-Operators-and-WHY-we-use-them) |