Problems from 2014 ICPC North America Qualifier

	Submissions				Users
Name	Total	Acc.	Ratio	Fastest	Total	Acc.	Ratio	Difficulty
Color Walk	114	36	32%	0.01	36	23	64%	8.1
Eight Queens	9822	2639	27%	0.00	2597	2083	80%	3.3
Flexible Spaces	4706	2638	56%	0.00	2181	2004	92%	1.7
Flip Five	1352	699	52%	0.00	636	558	88%	2.7
Human Cannonball Run	830	352	42%	0.00	319	274	86%	3.4
Mixed Fractions	9899	5134	52%	0.00	4808	4544	95%	1.5
Narrow Art Gallery	4918	1537	31%	0.00	1286	1115	87%	3.1
Pesky Mosquitoes	1033	263	25%	0.00	233	184	79%	5.2
Tractor	863	249	29%	0.00	296	208	70%	5.9
Units	498	230	46%	0.00	210	178	85%	3.6
Yikes - Bikes!	338	59	17%	0.00	91	48	53%	8.2