Problems from KTH CSC Popup spring 2013

	Add	Remove

Name	Fastest	Shortest	Total	Acc.	Ratio	Difficulty	Languages
Fenwick Tree	0.57	202	16253	4625	28%	3.6Medium	en
Linear Recurrences	0.03	476	1609	629	39%	4.8Medium	en
Union-Find	0.04	202	24844	7411	30%	2.9Medium	en