Problems from North American Invitational Programming Contest (NAIPC) 2017

Submissions Users
Name   Total Acc. Ratio Fastest Total Acc. Ratio Difficulty
Apple Market 477 99 21% 0.07 122 62 51% 8.2
Blazing New Trails 1066 149 14% 0.18 164 83 51% 6.9
Heaps from Trees 383 123 32% 0.15 168 108 64% 6.8
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 1391 283 20% 0.01 332 225 68% 7.0
Ski Resort 115 10 9% 0.25 12 8 67% 6.1
Stars in a Can 302 101 33% 0.09 81 55 68% 6.1
Stretching Streamers 370 158 43% 0.03 170 131 77% 5.1
Unbalanced Parentheses 38 19 50% 0.02 14 10 71% 7.5
Yin and Yang Stones 2718 1725 63% 0.00 1555 1452 93% 1.7