Problems from Google Code Jam 2012

Submissions Users
Name   Total Acc. Ratio Fastest Total Acc. Ratio Difficulty
Equal Sums (Easy) 1507 862 57% 0.00 706 658 93% 2.4
Safety in Numbers 393 71 18% 0.00 73 47 64% 7.0
Tide Goes In, Tide Goes Out 109 48 44% 0.01 33 29 88% 5.2