Problems from KTH CSC Popup spring 2013

	Add	Remove

Name	Fastest	Shortest	Total	Acc.	Ratio	Difficulty	Languages
Fenwick Tree	0.57	202	14633	4081	28%	4.0Medium	en
Linear Recurrences	0.03	749	1393	540	39%	5.0Medium	en
Union-Find	0.04	202	22595	6623	29%	4.1Medium	en