Problems from KTH CSC Popup spring 2013

Submissions Users
Name   Total Acc. Ratio Fastest Total Acc. Ratio Difficulty
Fenwick Tree 8489 2273 27% 0.67 1304 1006 77% 4.2
Linear Recurrences 918 403 44% 0.06 156 135 87% 4.4
Union-Find 14127 4401 31% 0.04 2022 1496 74% 5.2