Problems from Nordic Collegiate Programming Contest (NCPC) 2009

	Submissions				Users
Name	Total	Acc.	Ratio	Fastest	Total	Acc.	Ratio	Difficulty
Allergy Test	618	156	25%	0.00	197	97	49%	7.9
Beacons	269	76	28%	0.33	53	38	72%	7.2
Code Permutations	64	24	38%	0.03	22	17	77%	6.3
Flight Planning	218	81	37%	0.16	72	56	78%	7.1
Gokigen Naname	800	159	20%	0.00	148	107	72%	7.2
Money Matters	5083	1958	39%	0.00	1529	1315	86%	3.1
Playfair Cipher	501	234	47%	0.00	235	206	88%	2.6
Rain Fall	270	91	34%	0.00	96	81	84%	4.4
Soda Slurper	5156	3045	59%	0.00	3017	2822	94%	1.5
Speedy Escape	1044	210	20%	0.00	152	130	86%	5.3