Problems from Nordic Collegiate Programming Contest (NCPC) 2020

	Submissions				Users
Name	Total	Acc.	Ratio	Fastest	Total	Acc.	Ratio	Difficulty
Array of Discord	2897	596	21%	0.00	530	380	72%	4.9
Big Brother	300	124	41%	0.12	61	46	75%	6.3
Coin Stacks	2165	617	28%	0.00	470	396	84%	3.7
Dams in Distress	898	399	44%	0.02	307	260	85%	4.6
Exhaustive Experiment	216	44	20%	0.04	54	36	67%	7.1
Film Critics	506	155	31%	0.04	150	113	75%	6.0
Gig Combinatorics	1450	464	32%	0.01	404	303	75%	4.8
Hiring and Firing	382	39	10%	0.05	71	26	37%	9.5
Infection Estimation	771	58	8%	0.00	123	49	40%	8.7
Joining Flows	700	206	29%	0.01	221	173	78%	5.0
Keep Calm And Carry Off	651	137	21%	0.02	143	92	64%	6.1
Language Survey	81	14	17%	0.00	28	12	43%	8.5
Methodic Multiplication	1364	913	67%	0.00	646	612	95%	1.6