Problems from 2015 ICPC East-Central NA Regional Contest Practice Session

Submissions Users
Name   Total Acc. Ratio Fastest Total Acc. Ratio Difficulty
A Towering Problem 1903 918 48% 0.00 936 846 90% 2.0
Bottled-Up Feelings 1397 602 43% 0.00 587 525 89% 2.5
Mastering Mastermind 849 379 45% 0.00 376 331 88% 2.6
Shuffling Along 424 201 47% 0.00 207 182 88% 2.9