Problems from KTH CSC Popup spring 2013

	Add	Remove

Name	Fastest	Shortest	Total	Acc.	Ratio	Difficulty	Languages
Fenwick Tree	0.57	202	13625	3856	28%	4.1Medium	en
Linear Recurrences	0.03	749	1387	545	39%	5.1Medium	en
Union-Find	0.04	210	22450	6689	30%	4.1Medium	en