eval

Programming Language Evaluation Suite

This directory contains comprehensive programming challenges across four modern languages: CUDA, Go, Rust, and TypeScript. Each language has 10 carefully designed challenges organized into 4 difficulty tiers, testing progressively advanced concepts from basic syntax to production-ready systems.

Overview

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radar-beta
    axis CUDA, Go, Rust, TypeScript, Cross-Language
    curve Tier-1{30, 35, 30, 35, 32}
    curve Tier-2{55, 60, 60, 60, 58}
    curve Tier-3{80, 80, 85, 80, 81}
    curve Tier-4{95, 95, 95, 95, 95}
    showLegend true
    max 100
    graticule polygon

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Language-Specific Focus Areas

CUDA (GPU Computing)

Domain: Parallel computing and GPU acceleration Key Concepts: Memory management, kernel optimization, parallel algorithms Challenges: 10 problems from vector operations to ray tracing engines

Go (Concurrent Systems)

Domain: Distributed systems and concurrency Key Concepts: Goroutines, channels, service architecture Challenges: 10 problems from worker pools to Raft consensus

Rust (Systems Programming)

Domain: Memory-safe systems programming Key Concepts: Ownership, lifetimes, zero-cost abstractions Challenges: 10 problems from iterators to custom allocators

TypeScript (Type-Safe Applications)

Domain: Type system and API design Key Concepts: Generics, type inference, compile-time safety Challenges: 10 problems from event emitters to full-stack RPC

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Universal Tier Structure

Each language follows a consistent 4-tier difficulty progression, but tests language-specific skills at each level.

Tier 1: Fundamentals (Challenges 1-3)

What ALL Tier 1s Test:

• Language syntax correctness
• Basic standard library usage
• Simple algorithm implementation

Language-Specific Focus:

Language	Primary Skills
CUDA	Thread indexing, memory coalescing, kernel launch basics
Go	Goroutines, channels, WaitGroups, basic synchronization
Rust	Ownership, borrowing, trait implementation, lifetimes
TypeScript	Generics, type inference, discriminated unions, basic conditional types

Typical Challenges:

• CUDA: Vector operations, matrix transpose
• Go: Worker pool, rate limiter, concurrent cache
• Rust: Custom iterators, smart pointers, binary search tree
• TypeScript: Event emitter, schema validator, Result/Option types

Expected Outcomes:

• Demonstrates language fundamentals
• Shows understanding of core paradigms
• Implements simple, correct solutions
• ~150-400 lines of code per challenge

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Tier 2: Architecture & Organization (Challenges 4-6)

What ALL Tier 2s Test:

• File organization and module structure
• Internal dependency management
• Interface design and abstraction

Language-Specific Focus:

Language	Primary Skills
CUDA	Multi-kernel coordination, shared memory, kernel chaining
Go	Package organization, dependency injection, multi-service coordination
Rust	Module architecture, zero-copy patterns, state machines
TypeScript	Template literals, component patterns, type accumulation

Typical Challenges:

• CUDA: Image processing pipeline, multi-stage reduction
• Go: REST API, job queue, WebSocket hub
• Rust: HTTP parser, async executor, lock-free queue
• TypeScript: Type-safe router, component library, state machine

Expected Outcomes:

• Clean separation of concerns
• Interface-driven design
• Proper abstraction layers
• ~400-700 lines of code per challenge

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Tier 3: Advanced Features & Domain Expertise (Challenges 7-9)

What ALL Tier 3s Test:

• Language-specific advanced features
• Complex algorithms without external frameworks
• Domain-specific expertise

Language-Specific Focus:

Language	Primary Skills
CUDA	Advanced algorithms (sparse matrix, radix sort), irregular parallelism
Go	Network protocols, distributed algorithms, custom RPC
Rust	Procedural macros, typestate pattern, unsafe abstractions
TypeScript	Type-level programming, recursive types, advanced inference

Typical Challenges:

• CUDA: Sparse matrix ops, parallel sorting, Mandelbrot generation
• Go: Custom RPC framework, consistent hashing, load balancer
• Rust: Validation macros, typestate HTTP builder, JSON serializer
• TypeScript: Query builder, DI container, deep path safety

Expected Outcomes:

• Advanced language features mastery
• Sophisticated algorithms
• Domain-specific optimizations
• ~500-900 lines of code per challenge

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Tier 4: Production Systems (Challenge 10)

What ALL Tier 4s Test:

• Complete system architecture
• Performance considerations and optimization
• Production-ready patterns and practices

Language-Specific Focus:

Language	Primary Skills
CUDA	Full rendering/simulation pipeline, spatial structures, multi-pass algorithms
Go	Consensus protocols, fault tolerance, distributed coordination
Rust	Memory management, allocator design, FFI boundaries
TypeScript	End-to-end type safety, cross-boundary inference, framework design

Typical Challenges:

• CUDA: Ray tracing engine with BVH acceleration
• Go: Raft consensus implementation
• Rust: Custom bump allocator as global allocator
• TypeScript: Full-stack type-safe RPC framework

Expected Outcomes:

• Production-quality architecture
• Performance optimization demonstrated
• Error handling and edge cases covered
• Complete documentation and tests
• ~800-1500 lines of code

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Difficulty Progression Matrix

Aspect	Tier 1	Tier 2	Tier 3	Tier 4
Conceptual Complexity	Single concept	Multiple coordinated concepts	Advanced domain knowledge	Complete systems
Code Organization	Single file	Multiple modules	Package/crate structure	Multi-package architecture
Testing Requirements	Basic unit tests	Integration tests	Property/stress tests	End-to-end + benchmarks
Documentation	Function comments	API documentation	Architecture docs	Complete guides
Time to Complete	2-4 hours	4-8 hours	8-16 hours	16-32 hours
Lines of Code	150-400	400-700	500-900	800-1500

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Cross-Language Skill Mapping

Understanding how concepts translate across languages:

Concurrency & Parallelism

• CUDA: Kernel launches, thread blocks, memory synchronization
• Go: Goroutines, channels, WaitGroups, sync primitives
• Rust: Async/await, futures, Send/Sync traits, atomics
• TypeScript: Promises, async/await, event loops (runtime-dependent)

Memory Management

• CUDA: Global/shared/texture memory, coalescing, bank conflicts
• Go: Garbage collected, escape analysis, memory pooling
• Rust: Ownership, borrowing, lifetimes, manual control
• TypeScript: Garbage collected, WeakMap/WeakSet for cleanup

Type Safety

• CUDA: C++ templates, compile-time type checking
• Go: Interface satisfaction, structural typing
• Rust: Trait system, lifetime bounds, type-state patterns
• TypeScript: Structural typing, type inference, conditional types

Error Handling

• CUDA: Error codes, CUDA runtime errors, validation
• Go: Multiple return values, error interface, panic/recover
• Rust: Result<T, E>, Option, ? operator, type-level safety
• TypeScript: Exceptions, discriminated unions, branded types

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