DSA-1 Week 10 Lecture 2 | Part 3: Three-Way Partition and Guided Quickselect

DSA-1 (26SC1203E) | Module 5 | Week 10 | Lecture 2 | Part 3 of 6 Instructor: Dr. N. Chaitanya Kumar Three-Way Partition and Guided Quickselect. Follow the talking text, distinguish partition guarantees from sorted order, handle duplicate blocks in quickselect, and keep expected and worst-case costs separate. Include consistent comparators, safe ordering arithmetic, closed endpoint semantics, independent output rows and deterministic PulseLog endpoint ties. Pause for guided activities as instructed. Local Svaracraft M1 narration, timed pen annotations and English captions. Chapters 00:00 Three-way partition and unknown values 01:33 Iterative quickselect and equal-block decisions 03:08 Guided quickselect trace and duplicate ranks Watch in part order, 1–6. #DataStructures #Algorithms #Java