Problems

Problem	Category	Points	AC %	Users
TYPING	Xâu	100	29.3%	40
TYTATIC	Practice	20	72.7%	8
UAREA	Practice	10	41.1%	15
UBPICKING	Practice	11	44.3%	42
UCROSS1	Practice	10	20.9%	14
UCROOS2	Practice	11	42.6%	39
UFEAST	CTDL	10	25.2%	29
UGLYSEQ	QHD	20	36.0%	33
UGROUPS	Practice	10	70.8%	16
UGYM	Practice	10	53.6%	15
ULEMON	Practice	10	41.7%	48
UNION	Practice	100	17.7%	23
UNNUM	Practice	60	26.8%	18
UOCK	Practice	24	28.7%	47
UOCNTO	Practice	20	51.3%	18
UPDTREE	QHD trên cây	100	45.0%	7
UPGRADESEQ	CTDL	10	24.5%	19
USCOW	Practice	12	29.7%	45
USCOW1	Practice	10	34.0%	44
UTRISUM	CTDL	15	16.7%	6
VALUEA	Practice	100	21.9%	30
VANTCANDY1	Practice	45	25.8%	4
VBOOKSHOP	QHD	15	53.5%	21
VINGAME	DFS	45	17.6%	9
VIRUS	Practice	20	81.8%	9
VLIS1	Practice	15	31.6%	5
VLN	DH	100	27.7%	32
VMAXSUM	Practice	20	12.5%	3
VNGHICHTHE1	Practice	30	2.4%	1
VOICE	Practice	100	66.0%	27
VOLLEYBALL	Practice	100	50.0%	31
VOTREE	Practice	20	41.9%	12
VPATH1	Practice	20	13.4%	10
VPBRACKET	Practice	15	43.8%	13
VPBUS	IT	15	25.0%	13
VPKQUERY	IT	16	38.6%	18
VPMAXSUBARR	IT	10	48.4%	13
VPPALIPALI	Practice	16	0.0%	0
VPMAXSUMSUB	IT	25	23.4%	13
VRANGE1	Practice	20	2.2%	3
VSTAR	Practice	50	0.0%	0
VTRAVEL	Practice	50	0.0%	0
VTREE1	Practice	20	58.3%	4
VUONHOA	QHD	100	36.6%	50
WAGAR	Practice	20	21.2%	19
WAITBUS	CNP	10	40.7%	26
WALK	FLOW	100	0.0%	0
WALKING	QHD	100	19.0%	12
WARCHERY	SOHOC	11	49.4%	43
WATCH	Practice	100	33.3%	8