Problems from North American Invitational Programming Contest (NAIPC) 2017

Name Fastest Total Acc. Ratio Difficulty
Apple Market 0.07 554 127 23% 8hard
Blazing New Trails 0.18 1723 274 16% 7.1hard
Heaps from Trees 0.15 499 161 32% 6.8hard
Incremental Double Free Strings 0.01 61 29 48% 4.8medium
Maximum Color Clique 0.04 118 41 35% 6.1hard
Pieces of Parentheses 0.00 1649 332 20% 7hard
Ski Resort 0.25 118 11 9% 6.1hard
Stars in a Can 0.09 374 125 33% 6.2hard
Stretching Streamers 0.03 415 183 44% 4.8medium
Unbalanced Parentheses 0.01 48 22 46% 7.5hard
Yin and Yang Stones 0.00 3837 2441 64% 1.7easy