Problems from KTH CSC Popup spring 2013

	Add	Remove

Name	Fastest	Shortest	Total	Acc.	Ratio	Difficulty	Languages
Fenwick Tree	0.57	202	16339	4643	28%	3.6Medium	en
Linear Recurrences	0.03	476	1613	631	39%	4.8Medium	en
Union-Find	0.04	201	25017	7466	30%	3.0Medium	en