Problems from Waterloo Programming Contest 2001-06-02

	Add	Remove

Name	Fastest	Shortest	Authors	Full Solves	Ratio	Difficulty	Languages
Ones	0.00	60	1317	1033	78%	4.2Medium	en
Sumsets	0.27	391	414	271	65%	7.1Hard	en
Zipf's Law	0.00	291	533	391	73%	5.2Medium	en