Problems from KTH CSC Popup spring 2013

Submissions Users
Name   Total Acc. Ratio Fastest Total Acc. Ratio Difficulty
Fenwick Tree 6164 1594 26% 0.67 914 669 73% 4.9
Linear Recurrences 490 255 52% 0.06 101 88 87% 5.1
Union-Find 10024 3104 31% 0.04 1441 1052 73% 4.6