Problems from KTH CSC Popup spring 2013

	Add	Remove

Name	Fastest	Shortest	Total	Acc.	Ratio	Difficulty	Languages
Fenwick Tree	0.57	202	16180	4595	28%	3.7Medium	en
Linear Recurrences	0.03	749	1597	625	39%	4.8Medium	en
Union-Find	0.04	202	24795	7397	30%	3.0Medium	en