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Problem Category Points AC % Users
KARATE1 Practice 10 79.2% 15
KARTE Practice 10 50.0% 11
KAS QHD 20 100.0% 1
KBIN Practice 20 30.0% 3
KDEL1 Practice 100 32.2% 41
KDIFF Practice 20 74.2% 23
KDIST DFS 100 25.0% 23
KEYBOARD Trie 100 32.7% 9
KFACTOR SOHOC 12 17.1% 29
KHACHHANG CTDL 30 30.6% 37
KHH Practice 20 78.1% 24
KHUDANCU Practice 20 18.6% 5
KINHDOANH BFS 100 40.0% 10
KIOSKS PRVN 50 0.0% 0
KMTRAVEL DIJKSTRA 20 23.0% 24
KNIGHT Practice 40 34.0% 13
KNIGHT2 Practice 100 0.0% 0
KNUM Practice 100 46.0% 25
KRAJI CTDL 10 2.6% 1
KRAND Practice 10 28.6% 12
KSTRING Practice 100 45.1% 32
KSUM Practice 100 54.9% 54
KTH ĐỆ QUY 100 31.9% 50
KTHSUM CTDL 100 24.4% 35
KTREE QHD trên cây 100 19.2% 7
LAB SOHOC 63 45.0% 12
LABLE Practice 51 15.4% 2
LADDER Practice 100 42.9% 72
LADDER2 Practice 100 0.0% 0
LAMP SOHOC 100 44.8% 67
LAND QHD 100 21.7% 15
LAND1 Practice 17 39.7% 20
LAND2 C1 10 59.3% 16
LANDAO CNP 10 17.1% 29
LANDING Practice 100 34.6% 41
LANDM81 Practice 20 18.9% 17
LANGUAGE Trie 100 33.3% 5
LASTNUM Practice 100 23.0% 33
LAWRENCE QHD 100 37.7% 24
LBIN Practice 100 21.5% 19
LCA LCA 20 50.6% 25
LCMPAIR MAP 100 40.3% 24
LCSU Practice 100 4.4% 2
LEGO Practice 100 24.7% 36
LEM3 QHDTT 100 61.4% 30
LETTERS Practice 100 1.5% 1
LIBRARY DFS 100 36.8% 69
LIGHT FLOW 100 9.1% 1
LIGHT1 Practice 100 18.7% 15
LIGHTBALL Practice 100 31.5% 34