Problems from Nordic Collegiate Programming Contest (NCPC) 2013

	Submissions				Users
Name	Total	Acc.	Ratio	Fastest	Total	Acc.	Ratio	Difficulty
Boiling Vegetables	1234	481	39%	0.00	425	353	83%	3.5
Cliff Walk	52	27	52%	0.01	28	24	86%	5.5
Dance Reconstruction	135	27	20%	0.00	40	26	65%	7.4
Dartboard	456	148	32%	0.00	135	114	84%	4.4
Erase Securely	4839	2554	53%	0.00	2380	2226	94%	1.7
Number Trick	1588	267	17%	0.00	312	181	58%	7.2
Pinball	595	106	18%	0.07	109	49	45%	8.0
Planting Trees	9842	4548	46%	0.00	4003	3597	90%	2.0
Robert Hood	2674	803	30%	0.02	525	394	75%	4.5
Timebomb	2620	1364	52%	0.00	1285	1214	94%	1.8
Virus Replication	4757	1061	22%	0.00	944	769	81%	3.6