Problems

Problem	Category	Points	AC %	Users
CB011	CƠ BẢN	6	66.1%	31
CBARN2	QHD	10	33.3%	1
CCOLOR	Practice	21	50.0%	1
CEDGEDES	Practice	100	26.0%	10
CENCITY	DFS	20	33.3%	13
CENCY	DFS	20	57.1%	10
CENTROID	QHD trên cây	100	33.3%	16
CEZAR	DFS	20	39.5%	15
CGCD1	SOHOC	100	31.8%	19
CGIFTS	CƠ BẢN	100	43.8%	88
CGO	CTDL	25	52.6%	26
CHANGE	Practice	100	44.4%	54
CHANGESEQ	Practice	10	71.1%	25
CHANGESUM	Practice	50	27.3%	17
CHAR	CƠ BẢN	100	59.9%	81
CHARM	QHD	100	24.1%	49
CHASE	CTDL	100	7.4%	8
CHASE1	QHD trên cây	11	0.0%	0
CHATCAY	Practice	100	28.6%	34
CHECKIN	CNP	100	22.8%	50
CHECKPOINT	Practice	100	23.2%	31
CHECKTRI	Practice	100	31.8%	44
CHIACAY	Practice	20	14.6%	16
CHIADAT	Practice	100	53.7%	28
CHIADAY	Trie	100	7.7%	3
CHIADAY4	Practice	100	14.5%	26
CHIAKEO	Practice	100	63.1%	81
CHIAKEO1	QHD	10	60.4%	25
CHIAQUA	Practice	100	67.8%	36
CHIDAN	DFS	100	9.1%	2
CHKSHOP	sort	100	54.9%	103
CHOCOLATES	Practice	40	8.6%	7
CHONDAY	QHD	10	34.5%	28
CHOOSE	Practice	100	23.4%	57
CHOOSE2	Practice	100	26.9%	59
CHOOSE3	Practice	20	38.0%	34
CHTREE	Practice	15	25.0%	16
CINSEQK	QHD	20	68.2%	27
CIRCLE	sort	100	39.9%	53
CITY	HÌNH HỌC	100	25.6%	9
CLIMBING	Practice	24	33.8%	18
CLORBALL	Practice	50	45.7%	14
CLOUD	QHD	100	12.5%	2
CNTCELL	Practice	100	45.8%	22
CNTCOLOR	Practice	50	43.6%	17
CNTPAIR	SOHOC	100	30.9%	51
CNTPAR	CTDL	100	42.2%	69
CNTPATH	DFS	100	9.8%	8
CNTPR	SOHOC	20	33.3%	25
CNTPRIME	SOHOC	30	17.3%	48