Problems from Nordic Collegiate Programming Contest (NCPC) 2013

	Submissions				Users
Name	Total	Acc.	Ratio	Fastest	Total	Acc.	Ratio	Difficulty
Boiling Vegetables	1285	505	39%	0.00	451	375	83%	3.5
Cliff Walk	53	27	51%	0.01	29	24	83%	6.5
Dance Reconstruction	155	34	22%	0.00	45	30	67%	6.9
Dartboard	465	154	33%	0.00	141	120	85%	4.3
Erase Securely	5352	2777	52%	0.00	2587	2416	93%	1.7
Number Trick	1642	283	17%	0.00	326	192	59%	7.0
Pinball	631	106	17%	0.07	115	49	43%	8.4
Planting Trees	11337	5152	45%	0.00	4360	3934	90%	1.9
Robert Hood	2811	824	29%	0.02	540	407	75%	4.5
Timebomb	2706	1417	52%	0.00	1335	1262	95%	1.8
Virus Replication	5082	1136	22%	0.00	1017	839	82%	3.5