Add C# console app accepting an argument

Author: streamcode9

.github/workflows/hello.yml

@@ -1,4 +1,4 @@
-name: Use Secret Token
+name: icfp
 on: [push]
 jobs:
   build:

.github/workflows/secret.yml renamed to .github/workflows/icfp.yml

@@ -0,0 +1,15 @@
+using System;
+
+class Program
+{
+    static void Main(string[] args)
+    {
+        if (args.Length < 1)
+        {
+            Console.WriteLine("Please provide an argument.");
+            return;
+        }
+
+        Console.WriteLine($"Argument: {args[0]}");
+    }
+}

csharp-app/Program.cs

@@ -0,0 +1,8 @@
+<Project Sdk="Microsoft.NET.Sdk">
+  <PropertyGroup>
+    <OutputType>Exe</OutputType>
+    <TargetFramework>net8.0</TargetFramework>
+    <ImplicitUsings>enable</ImplicitUsings>
+    <Nullable>enable</Nullable>
+  </PropertyGroup>
+</Project>