Problems from Waterloo Programming Contest 2001-06-02

	Add	Remove

Name	Fastest	Shortest	Authors	Full Solves	Ratio	Difficulty	Languages
Ones	0.00	60	1335	1043	78%	4.3Medium	en
Sumsets	0.27	391	424	276	65%	7.0Hard	en
Zipf's Law	0.00	291	543	401	74%	4.9Medium	en