(1)å¦å¾1æ示
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0 1 0 1 1
0 0 0 1 0
0 0 0 0 1
0 0 0 0 0
0 0 0 0 0
(3)
deg(v1)=3
deg(v2)=2
deg(v3)=1
deg(v4)=2
deg(v5)=2
(4) è¡¥å¾
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