Problems from The 2020 ICPC Asia Can Tho Regional Contest

	Submissions				Users
Name	Total	Acc.	Ratio	Fastest	Total	Acc.	Ratio	Difficulty
Alchemy 101	886	276	31%	0.05	216	174	81%	3.9
Beautiful Square	133	41	31%	0.06	48	36	75%	6.1
Can Tho Expressway	513	110	21%	0.01	107	78	73%	6.6
Div 2, Mul 2, Mul 3	110	7	6%	0.35	27	7	26%	9.4
Edge Removal	308	85	28%	0.08	76	61	80%	5.6
Final Exam	2505	1717	69%	0.00	1641	1557	95%	1.5
Greatest Permutation	28	5	18%	0.32	10	4	40%	7.6
Hexagon coloring	7	6	86%	0.10	6	5	83%	6.2
Intelligence Exchange	615	76	12%	0.41	92	64	70%	6.0
Juggling Sequence	230	88	38%	0.04	92	77	84%	4.8
Kingdom of Hamsters	123	36	29%	0.58	38	31	82%	5.1
Lazy Students	83	16	19%	0.05	23	16	70%	6.9
Milk Tea Battle	280	22	8%	0.02	27	16	59%	7.2