Main Ideas For Today

• Minimum Spanning Trees
• Kruskal's Algorithm
• Disjoint Sub-set Data Structures
• Union-Find Algorithms

Reading Assignment

• Levitin, Chapter 9, Sections 9.2.

Lecture Slides

• Class #21 - Kruskal's Algorithm
  (Slides are only available for download from on-campus locations)

Web Sites Related to Today's Topic

Kruskal's Algorithm Animation

This page has an applet that demonstrates Kruskal's algorithm for various size graphs. Each mouse click advances the algorithm one step.

Homework Assigned Today

Due Date: 11/24/03


1. Levitin, Exercises 9.2: #1, #2, #4, #5
   NOTES: For #1, break ties using alphabetical order, e.g. edge (b,a) comes before (b,c). For #2 & #4, be sure to explain each of your answers. For #5, give pseudo code for your algorithm, assuming that you can call either the Prim or Kruskal methods given in the class notes.