gaku52/01-cs-fundamentals/algorithm-and-data-structures
01-cs-fundamentals/algorithm-and-data-structures/SKILL.md
[日本語版](../../ja/01-cs-fundamentals/algorithm-and-data-structures/SKILL.md) # Algorithms and Data Structures > Algorithms and data structures form the foundation of programming. This guide systematically covers complexity analysis, sorting algorithms, tree structures, graph algorithms, dynamic programming, and competitive programming techniques. ## Target Audience - Engineers who want to systematically learn algorithms - Those preparing for coding interviews - Those interested in competitive
$ install --global
skillsauthnpx skillsauth add gaku52/claude-code-skills 01-cs-fundamentals/algorithm-and-data-structuresInstall this skill globally with one command. Works with Claude Code, Cursor, and Windsurf.
Security Scan Results
3 of 9 scanners reported clean
Some scanners were skipped, did not run, or reported a non-clean status. Review each row below.
3
Scanners Passed
9
Scanners in report
Clean
TrivyContainer and dependency vulnerability scanner
95%
Clean
SemgrepStatic code analysis for vulnerabilities
95%
Clean
mcp-scan (Snyk)Model Context Protocol security validation
95%
Skipped
Snyk (dep)Open source security scanning
50%
Skipped
Socket.devSupply chain security analysis
50%
Skipped
VirusTotalMulti-engine malware detection
50%
Skipped
CrowdStrikeAdvanced threat intelligence
50%
Skipped
OSV-ScannerOpen Source Vulnerability database check
50%
Skipped
OWASP Dep-Check
50%
Last scanned: Apr 5, 2026, 2:36 AM251.8s25 files scanned
SKILL.md
日本語版
Algorithms and Data Structures
Algorithms and data structures form the foundation of programming. This guide systematically covers complexity analysis, sorting algorithms, tree structures, graph algorithms, dynamic programming, and competitive programming techniques.
Target Audience
- Engineers who want to systematically learn algorithms
- Those preparing for coding interviews
- Those interested in competitive programming
Prerequisites
- Basic programming (loops, conditionals, functions)
- Basic mathematics (logarithms, exponents, sets)
Study Guide
00-basics — Fundamentals
| # | File | Description | |---|------|-------------|
01-sorting — Sorting Algorithms
| # | File | Description | |---|------|-------------|
02-data-structures — Data Structures
| # | File | Description | |---|------|-------------|
03-graph — Graph Algorithms
| # | File | Description | |---|------|-------------|
04-advanced — Advanced Algorithms
| # | File | Description | |---|------|-------------|
Quick Reference
Complexity Cheat Sheet:
O(1) — Hash table lookup
O(log n) — Binary search
O(n) — Linear search
O(n log n) — Merge sort, quicksort (average)
O(n^2) — Bubble sort, insertion sort
O(2^n) — Subset enumeration
O(n!) — Permutation enumeration
References
- Cormen, T. et al. "Introduction to Algorithms." MIT Press, 2022.
- Sedgewick, R. "Algorithms." Addison-Wesley, 2011.
- Skiena, S. "The Algorithm Design Manual." Springer, 2020.
Related Skills
gaku52/web-development
tools
VerifiedTrustedCommunity
Fundamentals of modern web development. Framework selection (React, Vue, Next.js), project architecture, state management, routing, build tools, and CSS strategy best practices.
6SKILL.mdUpdated May 25, 2026
gaku52/04-web-and-network/react-development
development
VerifiedTrustedCommunity
# React Development — Complete Guide > A comprehensive guide to building modern React applications with TypeScript. Covers fundamentals through advanced patterns, Hooks mastery, TypeScript integration, performance optimization, and algorithm internals. ## Target Audience - Developers new to React who want a solid foundation - Intermediate React developers looking to deepen their understanding of Hooks and TypeScript patterns - Engineers who want to understand React's internal algorithms (Virt
6SKILL.mdUpdated May 23, 2026
gaku52/04-web-and-network/nodejs-development
development
VerifiedTrustedCommunity
# Node.js Development Skill > A practical guide collection for Node.js development. Covers all aspects of Node.js application development, including Express, NestJS, asynchronous patterns, and performance optimization. ## Overview This skill covers the following topics: - **Express & NestJS**: When to use a lightweight framework vs. an enterprise framework - **Asynchronous Patterns**: Promise, async/await, Event Emitter, Streams, Worker Threads, Cluster - **Performance Optimization**: Memory
5SKILL.mdUpdated May 25, 2026
gaku52/04-web-and-network/backend-development
development
VerifiedTrustedCommunity
# Backend Development — Complete Guide > A comprehensive guide to backend engineering. Covers the fundamentals of HTTP, REST API design, databases, authentication, environment configuration, and algorithm proofs — everything needed to build robust server-side systems. ## Target Audience - Developers new to backend engineering - Frontend engineers expanding toward full-stack development - Engineers looking to solidify their understanding of server-side fundamentals ## Prerequisites - Basic p
5SKILL.mdUpdated May 23, 2026