Problems from Waterloo Programming Contest 2001-06-02

Submissions Users
Name   Total Acc. Ratio Fastest Total Acc. Ratio Difficulty
Ones 2554 708 28% 0.00 660 504 76% 4.3
Sumsets 1919 435 23% 0.27 163 102 63% 8.1
Zipf's Law 1020 255 25% 0.01 191 137 72% 5.7