Problems from Nordic Collegiate Programming Contest (NCPC) 2020

	Submissions				Users
Name	Total	Acc.	Ratio	Fastest	Total	Acc.	Ratio	Difficulty
Array of Discord	3565	725	20%	0.00	636	461	72%	4.9
Big Brother	371	171	46%	0.12	73	58	79%	5.1
Coin Stacks	2501	699	28%	0.00	535	447	84%	3.9
Dams in Distress	1050	470	45%	0.02	348	299	86%	4.4
Exhaustive Experiment	253	56	22%	0.04	64	45	70%	5.5
Film Critics	593	175	30%	0.04	164	126	77%	5.8
Gig Combinatorics	1652	542	33%	0.01	453	341	75%	5.0
Hiring and Firing	422	49	12%	0.03	82	31	38%	9.3
Infection Estimation	845	78	9%	0.00	129	55	43%	8.4
Joining Flows	795	239	30%	0.01	237	187	79%	5.0
Keep Calm And Carry Off	728	167	23%	0.02	155	103	66%	5.9
Language Survey	85	17	20%	0.00	31	15	48%	8.0
Methodic Multiplication	1666	1118	67%	0.00	789	752	95%	1.6