2D Arrays Algorithm Practice Questions | O Level & IGCSE Computer Science P2 | Lecture 33

In this lecture, I explain 2D Arrays Algorithms for Paper 2 (Programming) in O Level and IGCSE Computer Science using a clear, exam-focused approach. 2D arrays (matrices) are commonly used in exam questions, and understanding how to apply algorithms on them using nested loops is essential for solving problems like searching, summing, and processing data efficiently. This lecture is ideal for students preparing for: 📘 O Level Computer Science (Cambridge 2210) – Paper 2 📗 IGCSE Computer Science (0478 / 0984) – Paper 2 🔍 What you’ll learn in this lecture: ✔ Recap of 2D arrays (rows & columns) ✔ Applying algorithms on 2D arrays ✔ Using nested loops for traversal ✔ Searching in 2D arrays (row by row) ✔ Finding sum, average, max & min values ✔ Input, output & processing in 2D arrays ✔ Writing pseudocode for 2D array problems ✔ Step-by-step logic building for exams ✔ Exam-style questions & practice ✔ Common mistakes students make This lecture will help you improve your programming logic, understand how algorithms work on matrix data, and confidently solve 2D array-based questions in Computer Science exams. 📌 Subscribe for more exam-focused Computer Science lectures. 💻 Full Paper 2 playlist 📝 Past paper solutions 🔥 Python lessons 📘 Algorithm & pseudocode series 🎯 Smart exam tips & guidance 📲 For classes & registration: WhatsApp: +92 332 2596965