【简答题】已知有向图G的定义如下: G=(V,E) V={a,b,c,d,e} E={<a,b>,<a,c>,<b,c>,<b,d>,<c,d>,<e,c>,<e,d>) (1)画出G的图形; (2)写出G的全部拓扑序列。
【简答题】a = b = c = d = e = e = (a + b) * c / d (, e)
e = ((a + b) * c) / d (, e)
e = (a + b) * (c / d) (, e)
e = a + (b * c) / d (, e)A. (a + b) * c / d 运算结果为: 50.0 ((a + b) * c) / d...
【简答题】X=
{a, b, c, d, e}, A= {a, b, c, d}, R=
{(a, a), (b, b), (c, c), (d, d), (e, e), (a, b), (d, c), (b, c ), (a,
c), (e, b), (a, d), (e, d), (e, a), (e, c)}, 求(X,R)的coverA. Cover={ ( a, b), (b, c), ( a, ...