Problems from CTU Open 2005

Submissions Users
Name   Total Acc. Ratio Fastest Total Acc. Ratio Difficulty
All Friends 1293 245 19% 0.00 230 125 54% 8.7
Divisors 1775 498 28% 0.01 466 342 73% 5.6
Emag Eht Htiw Em Pleh 1097 661 60% 0.00 639 620 97% 1.7
Failing Roads 50 21 42% 0.04 23 16 70% 7.9
Help Me With The Game 1447 756 52% 0.00 741 676 91% 2.5