Problems from Waterloo Programming Contest 2009-10-03

	Add	Remove

Name	Shortest	Authors	Full Solves	Ratio	Difficulty	Languages
Cantor	78	680	598	88%	2.7Easy	en
Meltdown	534	56	44	79%	4.5Medium	en
Pipes	1113	25	17	68%	5.9Hard	en