Problems from North American Invitational Programming Contest (NAIPC) 2017

Submissions Users
Name   Total Acc. Ratio Fastest Total Acc. Ratio Difficulty
Apple Market 482 100 21% 0.07 125 63 50% 8.4
Blazing New Trails 1082 152 14% 0.18 165 84 51% 7.0
Heaps from Trees 390 125 32% 0.15 171 110 64% 6.7
Incremental Double Free Strings 48 20 42% 0.01 21 15 71% 6.2
Maximum Color Clique 109 34 31% 0.04 39 29 74% 5.8
Pieces of Parentheses 1418 291 21% 0.01 338 230 68% 7.0
Ski Resort 115 10 9% 0.25 12 8 67% 6.1
Stars in a Can 328 102 31% 0.09 84 56 67% 6.8
Stretching Streamers 370 158 43% 0.03 170 131 77% 5.1
Unbalanced Parentheses 39 19 49% 0.02 15 10 67% 8.0
Yin and Yang Stones 2917 1850 63% 0.00 1674 1562 93% 1.7