Problems from KTH CSC Popup spring 2013

Submissions Users
Name   Total Acc. Ratio Fastest Total Acc. Ratio Difficulty
Fenwick Tree 5273 1390 26% 0.67 791 568 72% 5.1
Linear Recurrences 478 248 52% 0.06 95 83 87% 5.1
Union-Find 7664 2489 32% 0.04 1166 835 72% 5.0