Linear Search in 2D Arrays | O Level & IGCSE Computer Science P2 | Lecture 34

In this lecture, I explain Linear Search in 2D Arrays for Paper 2 (Programming) in O Level and IGCSE Computer Science using a clear, exam-focused approach. Linear search in a 2D array is an extension of the basic linear search algorithm, where we search for a value by traversing rows and columns using nested loops. This concept is commonly tested in exam questions involving matrices and table-based data. 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 Linear Search (1D arrays) ✔ How Linear Search works in 2D arrays ✔ Using nested loops for searching ✔ Finding value position (row & column index) ✔ Handling multiple occurrences ✔ Handling value not found cases ✔ Writing pseudocode for 2D linear search ✔ Input, output & processing logic ✔ Exam-style questions & practice ✔ Common mistakes students make This lecture will help you strengthen your understanding of searching algorithms, improve your problem-solving skills, and confidently solve 2D array search 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