Problems from Google Code Jam Practice Problems

Submissions Users
Name   Total Acc. Ratio Fastest Total Acc. Ratio Difficulty
Alien Numbers 2835 1490 53% 0.00 1458 1335 92% 1.8
Shopping Plan 76 22 29% 0.00 26 17 65% 7.6
Square Fields (Easy) 224 102 46% 0.00 91 79 87% 4.4
Square Fields (Hard) 478 145 30% 0.00 124 88 71% 7.2