Add big o notation code

.gitignore

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Constant/Constant.csproj

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+<Project Sdk="Microsoft.NET.Sdk">
+
+  <PropertyGroup>
+    <OutputType>Exe</OutputType>
+    <TargetFramework>net7.0</TargetFramework>
+    <RootNamespace>Constant</RootNamespace>
+    <ImplicitUsings>disable</ImplicitUsings>
+    <Nullable>enable</Nullable>
+  </PropertyGroup>
+
+</Project>

Constant/Program.cs

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+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);
+            }
+        }
+    }
+}
+
+
+

Exponential/Exponential.csproj

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+<Project Sdk="Microsoft.NET.Sdk">
+
+  <PropertyGroup>
+    <OutputType>Exe</OutputType>
+    <TargetFramework>net7.0</TargetFramework>
+    <RootNamespace>Exponential</RootNamespace>
+    <ImplicitUsings>disable</ImplicitUsings>
+    <Nullable>enable</Nullable>
+  </PropertyGroup>
+
+</Project>

Exponential/Program.cs

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+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);
+        }
+    }
+}
+
+
+

Linear/Linear.csproj

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+<Project Sdk="Microsoft.NET.Sdk">
+
+  <PropertyGroup>
+    <OutputType>Exe</OutputType>
+    <TargetFramework>net7.0</TargetFramework>
+    <RootNamespace>Linear</RootNamespace>
+    <ImplicitUsings>disable</ImplicitUsings>
+    <Nullable>enable</Nullable>
+  </PropertyGroup>
+
+</Project>

Linear/Program.cs

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+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);
+            }
+        }
+    }
+}
+
+
+

Quadratic/Program.cs

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+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();
+            }
+        }
+    }
+}
+
+
+

Quadratic/Quadratic.csproj

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+<Project Sdk="Microsoft.NET.Sdk">
+
+  <PropertyGroup>
+    <OutputType>Exe</OutputType>
+    <TargetFramework>net7.0</TargetFramework>
+    <RootNamespace>Quadratic</RootNamespace>
+    <ImplicitUsings>disable</ImplicitUsings>
+    <Nullable>enable</Nullable>
+  </PropertyGroup>
+
+</Project>

README.md

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-# big-o-notation
+# Big O Notation
 
-Code for my video on Big O Notation
+Code for my video on [Big O Notation](https://youtu.be/aIG48ldbpRI).
+
+> [!NOTE]  
+> [This repository](https://code.alexhyett.com/alexhyett/big-o-notation) is also mirrored on [Codeberg.org](https://codeberg.org/alexhyett/big-o-notation) if you want to raise an issue.