OpenAI has launched ChatGPT add-ons for Excel and Google Sheets, enabling users to create, edit, and analyze data using natural language. Powered by GPT-5.5, the tool can generate formulas, clean data ...

Choosing the right data structure can make or break your code’s efficiency, scalability, and clarity. From arrays to hash tables, each has strengths and trade-offs. Knowing when and why to use them is ...