推 apsol:第二提 解答寫 V-E+R=1+m m是component 03/20 19:40
→ nana0130:thank you la 03/20 22:00
If a planar connected graph G has 5 region of degree 4,
11 region of degree 5, 2 regions of degree 7,
2 regionsof degree 8, and 1 region of degree 9, then G has ______
edges and ______ vertices.
If planer graph G has 15 vertices, 19 edges, and 18 regions, then G has
______ connected components.
這兩題我都不會 請高手指導 thank you
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