Hash Tables Courses and Certifications

Blockchain and Cryptography Overview

Explore cryptography basics, blockchain fundamentals, consensus mechanisms, and smart contract security. Gain insights into hash functions, digital signatures, and blockchain security challenges.

• Coursera
• 7 hours 3 minutes
• Self-Paced
• Paid Course

POSTECH

Blockchain Theory and Applications I

This course is the first part of the two parts course on Blockchain Theory and Applications. This course will provide a brief introduction of blockchain and cryptocurrency. It then provides detailed technical explanations on how Bitcoin and Ethereum work.

• Coursera
• 6 hours 24 minutes
• Self-Paced
• Paid Course

Packt

Foundations of Data Structures & Algorithms in Python

Master data structures and algorithms in Python, covering complexity analysis, sorting, linked lists, and hash tables to confidently tackle coding interviews and LeetCode challenges.

• Coursera
• 14 hours
• Self-Paced
• Paid Course

Packt

PowerShell Skills

Master PowerShell automation for efficient system administration, from basic commands to advanced scripting techniques for real-world IT tasks and workflow optimization.

• Coursera
• 9 hours 40 minutes
• Self-Paced
• Paid Course

Codio

C++: Non-Linear Data Structures

Master advanced C++ data structures including heaps, hash tables, graphs, and sets through hands-on coding exercises. Build practical projects and gain deep understanding through interactive, self-paced learning.

• Coursera
• 16 hours 25 minutes
• Self-Paced
• Paid Course

Packt

Git Fundamentals – Getting Started with Git and GitHub

Master Git version control and GitHub essentials through hands-on practice with installation, configuration, branching, merging, and collaboration workflows.

• Coursera
• 9 hours 22 minutes
• Self-Paced
• Paid Course

Scrimba

Algorithm Interview Practice for Junior Developers

Dive into essential algorithms and problem-solving strategies for JavaScript, covering data structures, string manipulation, sorting, and performance optimization through engaging exercises and practical examples.

• Coursera
• 1 hour 7 minutes
• Self-Paced
• Paid Course

Codio

Java: Non-Linear Data Structures

Explore non-linear data structures in Java: heaps, hash tables, graphs, and sets. Gain hands-on experience with runnable code examples and instant feedback.

• Coursera
• 16 hours 10 minutes
• Self-Paced
• Paid Course

Packt

Foundations of Data Structures & Algorithms

Master core data structures and algorithms—arrays, linked lists, hash tables, sorting, stacks, and queues—while solving LeetCode problems and preparing for technical interviews using Java.

• Coursera
• 16 hours
• Self-Paced
• Paid Course

2026 Cryptocurrency Definitions For Beginners

Discover blockchain technology and cryptocurrency fundamentals in this beginner-friendly introduction covering wallets, applications, and real-world usage.

• Coursera
• 1 hour 38 minutes
• Self-Paced
• Paid Course

Board Infinity

Deep Dive into Cryptography

Master cryptographic techniques for blockchain security, from basic encryption to advanced protocols like zero-knowledge proofs and homomorphic encryption. Apply practical skills to enhance data privacy and secure decentralized systems.

• Coursera
• 13 hours 35 minutes
• Self-Paced
• Paid Course

Cyber Security Hashing Training for Beginners

Master hashing fundamentals and secure hash functions to tackle collisions, explore AI applications, and strengthen your cybersecurity foundation through hands-on demos.

• Coursera
• 3 hours 5 minutes
• Self-Paced
• Paid Course

Packt

Introduction to Data Structures and Algorithmic Foundations

Master data structures and algorithms with hands-on LeetCode practice. Analyze Big O complexity, solve interview problems on arrays, linked lists, and hash tables, and build confidence for technical interviews.

• Coursera
• 10 hours
• Self-Paced
• Paid Course

Packt Career Certificate

LEETCODE In C++ - Top 100 Coding Interview Problems

Master top LeetCode problems in C++, covering data structures, algorithms, dynamic programming, and graphs to build confidence and excel in technical coding interviews.

• Coursera
• Self-Paced
• Paid Course
• 3 courses

Bitcoin Scripting Foundations

Master Bitcoin's scripting language and transaction logic through hands-on exercises, building the foundation for blockchain development and programmable money flows.

• Coursera
• 14 hours 45 minutes
• Self-Paced
• Paid Course