Data Structures and Algorithms (English) - 6-13 Topological Sort(25 分)

简介: Data Structures and Algorithms (English) - 6-13 Topological Sort(25 分)

题目链接:点击打开链接

题目大意:略。

解题思路:略。

AC 代码

boolTopSort( LGraphGraph, VertexTopOrder[] )
{
PtrToAdjVNodee;
inttop=0, cnt=0, in[Graph->Nv+10];
for(inti=0;i<Graph->Nv;i++) in[i]=0;
Vertex*sk;
sk=(Vertex*)malloc(Graph->Nv*sizeof(Vertex));
for(inti=0;i<Graph->Nv;i++)
    {
for(e=Graph->G[i].FirstEdge; e; e=e->Next)
        {
intk=e->AdjV;
in[k]++;
        }
    }
for(inti=0;i<Graph->Nv;i++)
if(in[i]==0) sk[++top]=i;
while(top!=0)
    {
inttp=sk[top--];
TopOrder[cnt++]=tp;
for(e=Graph->G[tp].FirstEdge; e; e=e->Next)
        {
intk=e->AdjV;
if(!(--in[k]))
sk[++top]=k;
        }
    }
if(cnt<Graph->Nv) return0;
return1;
}
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