Problem of The Month...
The problem of the month is a contest open to undergraduates. The first correct answer to the problem receives a certificate and a $10 gift certificate.
November 2009 Problem
Deadline: November 30, 5pm. This file also contains the solution to the October problem. No winner for October.
October 2009 Problem
Deadline: October 30, 5pm. This file also contains the solution to the September problem. September winner: Ben Sirb.
Previous Problems:
September Problem
April Problem
March Problem
(this file also contains the solution of the February problem). March winner: Ben Sirb.
February Problem
(this file also contains the solution of the January problem). February winner: Anthony Angelucci.
January Problem
January winner: Vincent Laufer. Other correct solutions were submitted by Mamadou Barry, Nathalie Houderquint, Tanya Singh.