Problems

Problem	Category	Points	AC %	Users
PCOW	Practice	100	46.0%	57
PDOLLS	CTDL	100	68.8%	39
PEARL	sort	100	28.9%	36
PERREC	Practice	10	33.3%	10
PFR	Practice	20	23.3%	5
PGIFT	Practice	100	0.0%	0
PHOMAT	QHD	100	23.9%	15
PHONE	Trie	100	23.0%	23
PHONGVIEN	Practice	20	43.8%	7
PHUDOAN	Practice	100	54.3%	66
PHUDOAN1	Practice	10	42.1%	59
PICTURE	QHD	100	25.6%	62
PIG	Practice	20	8.3%	6
PIGEGAME	Practice	10	0.0%	0
PILOT	CTDL	100	22.0%	14
PIN	Practice	100	69.1%	44
PITLAND	LCA	100	33.9%	19
PIZZA	Practice	13	42.3%	22
PLAYGROUND	QHD	100	50.8%	52
POLAREA	HÌNH HỌC	10	31.3%	25
POLE	QHD	20	13.0%	12
POLE2	QHD	20	20.7%	6
POLICE	Practice	10	0.0%	0
POLY	HÌNH HỌC	10	0.0%	0
POOL	PQ	20	27.9%	9
POPUST	sort	100	24.1%	31
POSTMAN	Practice	100	26.2%	17
POURBOI	Practice	20	25.9%	17
PRACTICE	Practice	100	58.8%	62
PRCHAIN	Practice	60	35.3%	67
PRE_MSEQ	Practice	40	30.3%	28
PRE_DTREE	Practice	25	8.2%	10
PRE_ARRAY	Practice	50	9.2%	10
PRE_BUILDTREE	Practice	25	26.7%	3
PRE_CNTPATH2	Practice	25	10.0%	3
PRE_GCDIX	Practice	50	18.2%	2
PRE_BSTR	Practice	40	6.8%	5
PRE_FROG	Practice	40	6.3%	1
PRE_ROBOT	PRVN	40	0.0%	0
PRE_ATTACK	Practice	39	0.0%	0
PRE_BOARD	Practice	20	12.5%	4
PRECAVE	Practice	40	50.0%	2
PRECHAMELEON	Practice	50	0.0%	0
PRECOLDWAR	Practice	50	10.5%	3
PRECOMCAT	Practice	50	0.0%	0
PREDANHCO	Practice	80	6.7%	3
PREDIV	Practice	42	21.6%	7
PREDOLL	Practice	48	10.7%	7
PREEXERCISE	Practice	80	20.0%	13
PREFIX	Practice	10	53.8%	49