6.890 | Fall 2014 | Graduate

Algorithmic Lower Bounds: Fun with Hardness Proofs

Assignments

There will be 4 problem sets total, each with 2–3 weeks to complete them. We anticipate some problems being challenging and advise students to start thinking about the problems early. Solutions will be posted here after the due date; for this reason, late days are not allowed.

Solutions do not need to include all calculations, trivial details etc. Just prove to us that you found the solution, and you understand it well. You may discuss assigned problems with other students, but must write your solution individually. Be sure to cite all collaborators and any sources you use. Avoid reading sources that solve the problem, but if you accidentally do, cite that source.

Problems will be graded with the following marks:

• X = 0/10: You didn’t get it. The answer is completely wrong or doesn’t address the question. Please don’t write stuff you know is wrong.
• Check minus = 6/10: Your solution had a good concept, but the write-up contained significant errors or omissions.
• Check = 8/10: Your solution was essentially correct but contained minor errors or omissions.
• Check plus = 10/10: (We think) you got it.

ASSIGNMENTS SAMPLE SOLUTIONS
Problem Set 1 (PDF) Problem Set 1 Solutions (PDF)
Problem Set 2 (PDF) Problem Set 2 Solutions (PDF)
Problem Set 3 (PDF) Problem Set 3 Solutions (PDF)
Problem Set 4 (PDF) Problem Set 4 Solutions (PDF)

Course Info

Fall 2014
Learning Resource Types
Lecture Videos
Problem Sets with Solutions
Lecture Notes
Projects
Instructor Insights