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1. fiddle.cs fiddle.cs

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   using System;

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   using System.Collections.Generic;

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   using System.Linq;

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   using System.Numerics;

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   public class ListNode

2. codedotnet codedotnet Public

   🚀 Browser-based C# playground powered by .NET 10 WebAssembly and Roslyn. ✍️ Write, compile, and run C# entirely client-side with 🔒 no server, 👤 no account, and 📦 no installation.

   TypeScript

3. leetcode leetcode Public

   🚀 Algorithmic problem solving in C# with 🧠 core data structures, ⚡ optimized solutions, 📊 time and space complexity analysis, 🧩 edge-case handling, and 🔁 reusable patterns across graphs, trees, dyn…

   C#

4. Dijkstra.cs Dijkstra.cs

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   using System;

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   using System.Collections.Generic;

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   public class Program {

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       public static void Main() {

5. TopologicalSort.cs TopologicalSort.cs

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   using System;

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   using System.Collections.Generic;

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   public class Program

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   {

6. Tree.cs Tree.cs

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   using System;

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   using System.Collections.Generic;

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   public class TreeNode

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   {