Problems from Nordic Collegiate Programming Contest (NCPC) 2011

	Submissions				Users
Name	Total	Acc.	Ratio	Fastest	Total	Acc.	Ratio	Difficulty
Car Trouble	303	95	31%	0.00	95	84	88%	4.3
Death Knight Hero	5088	2545	50%	0.00	2468	2300	93%	1.9
Elevator Trouble	1937	564	29%	0.00	497	436	88%	2.9
Enemy Division	199	74	37%	0.03	62	53	85%	5.3
Knigs of the Forest	1273	311	24%	0.01	263	228	87%	3.9
Mega Inversions	1383	559	40%	0.01	435	366	84%	4.7
Prime Time	101	35	35%	0.00	39	28	72%	7.1
Private Space	172	27	16%	0.00	31	22	71%	5.7
Robots on a Grid	956	261	27%	0.02	198	164	83%	4.5
ls	830	249	30%	0.00	247	190	77%	5.3