Problems from Nordic Collegiate Programming Contest (NCPC) 2011

	Submissions				Users
Name	Total	Acc.	Ratio	Fastest	Total	Acc.	Ratio	Difficulty
Car Trouble	554	159	29%	0.00	150	130	87%	4.7
Death Knight Hero	5920	3017	51%	0.00	2933	2739	93%	1.8
Elevator Trouble	2402	790	33%	0.00	692	612	88%	2.8
Enemy Division	434	97	22%	0.03	78	67	86%	6.0
Knigs of the Forest	2992	731	24%	0.01	611	523	86%	3.8
ls	1063	321	30%	0.00	320	245	77%	5.7
Mega Inversions	2167	907	42%	0.01	717	621	87%	3.4
Prime Time	130	41	32%	0.00	45	34	76%	6.8
Private Space	279	43	15%	0.00	45	35	78%	5.4
Robots on a Grid	1469	429	29%	0.02	294	254	86%	4.4