Problems from KTH CSC Popup spring 2013

	Add	Remove

Name	Fastest	Shortest	Total	Acc.	Ratio	Difficulty	Languages
Fenwick Tree	0.57	202	13317	3781	28%	4.2Medium	en
Linear Recurrences	0.03	749	1363	536	39%	4.9Medium	en
Union-Find	0.04	210	22000	6560	30%	4.2Medium	en