Problems from Nordic Collegiate Programming Contest (NCPC) 2010

	Submissions				Users
Name	Total	Acc.	Ratio	Fastest	Total	Acc.	Ratio	Difficulty
Around the track	54	13	24%	0.01	22	11	50%	8.6
Borg Boogie	53	17	32%	0.10	20	16	80%	5.7
Connect	94	25	27%	0.00	29	18	62%	6.8
Dirty Driving	340	223	66%	0.01	210	199	95%	2.0
Doodling	49	20	41%	0.00	29	20	69%	5.8
Great Geek Game-show 3000!	32	21	66%	0.08	21	20	95%	3.8
Help a PhD candidate out!	2784	1644	59%	0.00	1632	1554	95%	1.4
Polyomino Powers	15	10	67%	0.01	10	8	80%	5.4
Skyline	39	22	56%	0.00	23	19	83%	6.2
Statisticians	146	43	29%	0.28	35	24	69%	7.3
Succession	401	145	36%	0.00	144	124	86%	3.5