3) Analysing Rec. Algorithms ---(ps or pdf) 4) Solving Recurrences ---------(ps or pdf) 5) Heaps and Heapsort ----------(ps or pdf) 6) QuickSort -------------------(ps or pdf) 7) More on Sorting -------------(ps or pdf) 8) 2-3 Trees -------------------(ps or pdf) 9) Hash Tables -----------------(ps or pdf)