Putnam
Puzzles
- putnam.1967In article <5840002@hpesoc1.HP.COM>, nicholso@hpesoc1.HP.COM (Ron Nicholson) writes: > Say that we have a...
- putnam.1987WILLIAM LOWELL PUTNAM MATHEMATICAL COMPETITION
- putnam.1988Problem A-1: Let R be the region consisting of the points (x,y) of the cartesian plane satisfying both |x| - |y| <= 1 and |y| <= 1.
- putnam.1990Problem A-1 How many primes among the positive integers, written as usual in base 10, are such that their...
- putnam.1992Problem A1
- putnam.1994Problems from the 1994 Putnam exam (December 3, 1994). New