Warning: for a brief two hour span on the morning of Tue Oct 17th (between 7 and 9am) a version of the pset went out with a problem 7 which was from pset4. If you downloaded the pset before then make sure to redownload the new version.
Small Extension: in case of inconvenience from the changed problem 7, we are giving everyone a small extension. The pset will be due at 11:59PM (this doesn't apply to late days).

Warmups, algorithmic analysis, bloom filters, predicting elections and global warming