73 1.0.3

73 CLI

The interactive command-line companion to practice, test, and master the 73 most useful LeetCode problems in C# with zero boilerplate, instant feedback, and comparative benchmarking.

Features

• Zero Boilerplate: Write only public class Solution { ... } (the exact LeetCode snippet). No .csproj, no Program.cs, no Main().
• In-Memory Roslyn Execution (< 100 ms): Code is compiled dynamically in memory using Microsoft.CodeAnalysis.CSharp for instant feedback.
• Smart Problem Resolver: Automatically detects which problem you are testing by directory location, fuzzy filename (two.cs), or AST method signature inspection (TwoSum(...)).
• Target Complexity Display: Displays theoretical Big-O targets (O(N) Time | O(N) Space) in execution headers and problem info.
• Comparative Benchmarking & Scalability Analysis: 73 bench <problem> tests your solution against the optimal reference solution across 1,000 iterations and large-scale stress tests ($N \ge 10,000$).
• Rich Terminal UI: Clear panels, progress indicators, comparative diff tables, and benchmark matrices powered by Spectre.Console.
• 100% Self-Contained: All 76 problem test suites, templates, and problem notes are embedded directly into the DLL.

Installation

Install globally as a .NET Tool from NuGet:

dotnet tool install -g 73

To update to the latest version:

dotnet tool update -g 73

Note for Windows PowerShell: Because bare numbers are parsed as integer literals, invoke the tool as 73.exe (e.g. 73.exe two.cs) or & 73. In CMD, Git Bash, macOS, and Linux, you can run 73 directly.

Quickstart

1. Generate a boilerplate solution

73 new two-sum

Creates Two-Sum.cs with the exact LeetCode method signature:

using System;
using System.Collections.Generic;

// Problem: #0001 - Two Sum [Easy]
public class Solution
{
    public int[] TwoSum(int[] nums, int target)
    {
        throw new NotImplementedException();
    }
}

2. Solve and test immediately

Run 73 pointing to your file:

73 Two-Sum.cs

Or run tests directly by problem name or number:

73 test 1

3. Benchmark against the optimal reference solution

Compare execution time, heap memory allocations, and scalability:

73 bench two.cs

Or with the test command:

73 test two.cs --bench

Commands Reference

License

This project is licensed under the MIT License.