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 2250 1097 49% 0.00 1104 998 90% 2.1
Bottled-Up Feelings 1840 754 41% 0.00 734 650 89% 2.6
Mastering Mastermind 1202 521 43% 0.00 512 458 89% 2.4
Shuffling Along 540 248 46% 0.00 249 224 90% 2.7