Problems from KTH CSC Popup spring 2013

	Add	Remove

Name	Fastest	Shortest	Total	Acc.	Ratio	Difficulty	Languages
Fenwick Tree	0.57	202	15728	4489	29%	3.8Medium	en
Linear Recurrences	0.03	749	1541	604	39%	4.9Medium	en
Union-Find	0.04	202	24315	7238	30%	3.0Medium	en