Problems from The 2019 ICPC Vietnam National Contest

	Submissions				Users
Name	Total	Acc.	Ratio	Fastest	Total	Acc.	Ratio	Difficulty
A New Adventure	1557	236	15%	0.00	232	166	72%	6.2
Breaking Cake	894	200	22%	0.03	185	143	77%	5.6
Checking Break	1120	228	20%	0.06	202	157	78%	6.1
Dropping Ball	415	113	27%	0.00	92	73	79%	5.5
Easy Probability	696	59	8%	0.00	94	30	32%	8.8
Final Exam	985	73	7%	1.12	144	38	26%	9.4
Gathering in Yorknew	1948	398	20%	0.01	416	282	68%	5.8
Hunter x Communication	96	25	26%	0.41	40	21	52%	8.2
IMO Harder Problem	118	52	44%	0.01	50	38	76%	6.6
Just Enough Bridges	443	92	21%	0.05	124	58	47%	7.6
Kingdom of Ants	681	141	21%	0.25	113	82	73%	7.0
Learning to code	807	61	8%	0.00	108	39	36%	8.3