Problems from Waterloo Programming Contest 2001-06-02

Submissions Users
Name   Total Acc. Ratio Fastest Total Acc. Ratio Difficulty
Ones 4297 1305 30% 0.00 1114 869 78% 4.5
Sumsets 3493 593 17% 0.27 287 167 58% 8.1
Zipf's Law 2366 562 24% 0.01 422 309 73% 5.7