Problems from The 2017 ACM - ICPC Vietnam National Programming Contest

	Submissions				Users
Name	Total	Acc.	Ratio	Fastest	Total	Acc.	Ratio	Difficulty
Another Query on Array Problem	1966	245	12%	0.05	386	173	45%	7.8
Board Covering	155	24	15%	0.00	56	21	38%	8.7
Cumulative Sums	196	37	19%	0.01	70	21	30%	8.2
Delicious Bubble Tea	3557	1272	36%	0.00	1181	1070	91%	2.4
European Trip	1300	599	46%	0.00	500	438	88%	3.3
Familiar Digit	291	75	26%	0.02	82	57	70%	4.8
Ginger Candy	892	222	25%	0.04	231	174	75%	5.6
Integer Rotation	2143	393	18%	0.05	441	289	66%	6.2
Jewelry Box	1991	1312	66%	0.00	1083	1026	95%	1.7
Keep the Parade Safe	561	113	20%	0.00	128	75	59%	6.4
Let's Play Monopoly!	238	118	50%	0.03	93	84	90%	3.2
Nim Cheater	124	26	21%	0.00	49	23	47%	8.2