Next Problem solving session — October 28, Friday, 4-5:30, DRL 4C6 (as usual).

Topics — combinatorics https://ocw.mit.edu/courses/mathematics/18-s34-problem-solving-seminar-fall-2007/assignments/pigeon.pdf

and number theory: https://ocw.mit.edu/courses/mathematics/18-s34-problem-solving-seminar-fall-2007/assignments/cong.pdf