Data Structures and Algorithms I

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Presentation transcript:

Data Structures and Algorithms I CMP 338 Data Structures and Algorithms I Day 15, 10/25/11 More Red Black Search Trees

Homework 10, due noon 10/21 Improve quicksort (any variant) Use insertion sort to sort small regions static void setSmall(int s) static int getSmall() Find the best value for small Turn in (include your name in a comment) a) working code for your program Homework10.java b) performance numbers (standard out) hw10.txt c) performance graphs hw10.doc or hw10.odt d) your interpretation of the data hw10.doc or hw10.odt

Homework 11 due: noon 11/4 Implement 2-3 trees directly (Algorithms 3.3.35 pg 452) public class Homework11 extends AbstractOrderedSymbolTable (or) implements OrderedSymbolTable Implement different classes for 2-Nodes and 3-Nodes Preserve 2-3 tree invariants: Keys are ordered in the 2-3 tree All paths from leaves to root are the same length Correctness test: FrequencyCounter on tale.txt