Data Structures and Algorithms courses can help you learn about arrays, linked lists, trees, and graph structures, along with sorting and searching algorithms. You can build skills in problem-solving, optimizing code efficiency, and analyzing algorithm complexity. Many courses introduce tools like Python, Java, or C++ for implementing these concepts, as well as platforms for coding challenges that reinforce your understanding through practical application.

University of Manchester
Skills you'll gain: Health Equity, Health Disparities, Public Health and Disease Prevention, Public Health, World History, Healthcare Ethics, Emergency Response, Health Care, Health Systems, Crisis Intervention, Social and Human Services, Safety and Security, Human Services, Ethical Standards And Conduct, International Relations, Infectious Diseases, Social Studies, Mitigation, Policy Analysis, Advocacy
★ 4.7 (289) · Beginner · Course · 1 - 3 Months

Skills you'll gain: Object Oriented Programming (OOP), Java, Object Oriented Design, Java Programming, Maintainability, Software Design, Data Structures, Software Architecture, Memory Management, Programming Principles, Code Reusability, Data Management, Performance Tuning
Intermediate · Course · 1 - 4 Weeks

Sage Publications
Skills you'll gain: Surveys, Survey Creation, Qualitative Research, Research Design, Descriptive Statistics, Statistical Hypothesis Testing, Research, Correlation Analysis, Quantitative Research, Experimentation, Scientific Methods, Statistical Methods, Probability & Statistics, Science and Research, Data Analysis, Statistical Analysis, Statistics, Research Methodologies, Statistical Inference, Psychology
Beginner · Specialization · 3 - 6 Months

John Wiley & Sons
Skills you'll gain: Database Design, Relational Databases, SQL, Database Management, Database Theory, Database Systems, Data Integrity, Data Store, Database Development, Network Model, Database Architecture and Administration, Database Management Systems, Systems Development, Microsoft SQL Servers, Performance Tuning, Requirements Analysis, Systems Development Life Cycle, Data Modeling, Data Architecture, Data Manipulation
Beginner · Course · 1 - 3 Months

Skills you'll gain: Object Oriented Programming (OOP), Data Structures, Unit Testing, File I/O, Algorithms, Test Case, Computer Programming, Test Tools, Python Programming, Debugging, Software Testing, File Management, Data Science, Context Management
Intermediate · Course · 1 - 3 Months

Skills you'll gain: Computer Security Incident Management, Network Analysis, Anomaly Detection
★ 4.9 (36) · Beginner · Course · 1 - 4 Weeks

Microsoft
Skills you'll gain: Editing, Content Development and Management, Proofreading, Public Relations, Content Creation, Writing and Editing, Content Management, Content Management Systems, Content Strategy, Content Scheduling, Writing
★ 4.8 (42) · Beginner · Course · 1 - 3 Months

LearnKartS
Skills you'll gain: Professionalism, Courage, Personal Integrity, Culture Transformation, Professional Development, Leadership, Culture
★ 4.7 (87) · Beginner · Course · 1 - 4 Weeks
Skills you'll gain: Application Security, Angular, OAuth, Test Driven Development (TDD), Cryptography, Web Components, Data Validation, Unit Testing, Vue.JS, Development Testing, Data Security, Authentications, Encryption, Authorization (Computing), HTML and CSS, Hypertext Markup Language (HTML), Web Applications, Javascript, Security Strategy, Computer Programming
★ 4.3 (102) · Beginner · Specialization · 1 - 3 Months

University of Colorado System
Skills you'll gain: Linux Administration, Linux, Linux Servers, Ubuntu, Operating System Administration, Red Hat Enterprise Linux, Unix, User Accounts, Linux Commands, User Provisioning, Systems Administration, System Configuration, Hardening, Security Controls, Authorization (Computing), Network Administration, Software Installation, Package and Software Management, Authentications, Open Source Technology
★ 4.6 (920) · Intermediate · Course · 1 - 3 Months

Association of International Certified Professional Accountants
Skills you'll gain: Digital Assets, Blockchain, Asset Protection, Data Security, Asset Management, Cybersecurity, Security Awareness, Key Management, Security Controls, Securities (Finance), Multi-Factor Authentication, Ledgers (Accounting), Authentications, Financial Industry Regulatory Authorities, Accounting Systems, Financial Market, Market Data, Financial Regulations
★ 4.7 (93) · Beginner · Course · 1 - 4 Weeks

Microsoft
Skills you'll gain: Intrusion Detection and Prevention, Vulnerability Management, Penetration Testing, Security Testing, Vulnerability Assessments, Cyber Security Assessment, Threat Detection, Vulnerability Scanning, Firewall, Virtual Private Networks (VPN), Network Security, Security Software, Cyber Operations, Microsoft Azure, Cloud Security, Test Tools, Windows PowerShell, System Testing, Command-Line Interface
★ 4.8 (201) · Beginner · Course · 1 - 4 Weeks