1. Lecture 3
CSE 331
Aug 31, 2012

2. HW 0 due today I will not accept HWs after 1:15pm
Place Q1, Q2 and Q3 in separate piles
I will not accept HWs after 1:15pm

3. Office Hours Jiun-Jie: Mon, Tue 11-11:50am
Davis
302
Zihe: Wed 4:00-4:50pm, Th 3-3:50pm
Atri: Mon, Wed 2-2:50pm

4. Participate on Piazza!

5. Submit the form below
I’ll need confirmation in writing. No graded material will be handed back till
I get this signed form from you!

6. Sign up for Mini project

7. Next Wed lecture
My student Jesse will cover for me

8. HW 0 due today I will not accept HWs after 1:15pm
Place Q1, Q2 and Q3 in separate piles
I will not accept HWs after 1:15pm

9. Questions/Comments?

10. From problem to software

11. Main Steps in Algorithm Design
Problem Statement
Real world problem
Problem Definition
Precise mathematical def
Algorithm
“Implementation”
Data Structures
Analysis
Correctness/Run time

12. Worst-case analysis Correctness should hold for every valid input
Why worst-case?
Resource usage by the worst-possible input
What resources?

13. Questions/Comments?

14. National Resident Matching

15. (Screen) Docs are coming to BUF
Buffalo General
Hawkeye (M*A*S*H)
Millard Filmore (Gates Circle)
JD (Scrubs)
Millard Filmore (Suburban)

16. What can go wrong?

17. The situation is unstable!

18. What happens in real life
Preferences
Information
Preferences

19. NRMP plays matchmaker

20. Stable Marriage Problem
David Gale
Lloyd Shapley