Problems from Waterloo Programming Contest 2001-06-02

	Add	Remove

Name	Fastest	Shortest	Authors	Full Solves	Ratio	Difficulty	Languages
Ones	0.00	60	1320	1033	78%	4.3Medium	en
Sumsets	0.27	391	417	274	66%	7.0Hard	en
Zipf's Law	0.00	291	535	393	73%	5.1Medium	en