Problems from 2015 ICPC East-Central NA Regional Contest

Submissions Users
Name   Total Acc. Ratio Fastest Total Acc. Ratio Difficulty
Being Solarly Systematic 473 44 9% 0.02 58 30 52% 8.5
Delete This! 188 36 19% 0.00 46 29 63% 7.4
KenKen You Do It? 416 79 19% 0.00 101 56 55% 6.9
Rings 1469 500 34% 0.00 509 419 82% 3.9
Squawk Virus 1720 550 32% 0.00 589 486 83% 3.7
Transportation Delegation 899 307 34% 0.04 216 179 83% 5.4
Tray Bien 198 118 60% 0.00 120 107 89% 4.1
Trick Shot 299 49 16% 0.00 56 31 55% 7.9
What's on the Grille? 1444 415 29% 0.00 441 374 85% 3.8