Problems from The 2019 ICPC Vietnam National Contest

	Submissions				Users
Name	Total	Acc.	Ratio	Fastest	Total	Acc.	Ratio	Difficulty
A New Adventure	1111	169	15%	0.00	188	127	68%	6.2
Breaking Cake	690	154	22%	0.03	162	121	75%	5.3
Checking Break	863	164	19%	0.06	168	127	76%	5.8
Dropping Ball	271	77	28%	0.00	66	52	79%	6.4
Easy Probability	537	43	8%	0.00	73	23	32%	8.8
Final Exam	803	46	6%	1.12	92	25	27%	9.0
Gathering in Yorknew	1524	297	19%	0.01	344	235	68%	5.6
Hunter x Communication	95	25	26%	0.41	39	21	54%	7.1
IMO Harder Problem	104	45	43%	0.01	44	33	75%	5.2
Just Enough Bridges	329	49	15%	0.05	96	37	39%	8.0
Kingdom of Ants	540	107	20%	0.25	89	65	73%	5.6
Learning to code	635	42	7%	0.00	91	29	32%	8.1