ShortestWay(Graf<Vertex, Edge> *g, Dialog* dialog): _dialog(dialog)
{
this->g = new Graf<Vertex, Edge>(true);
for (int i = 0; i < g->V(); i++)
{
this->g->InsertV();
way[i] = -1;
}
way[g->V()] = -1;
for (int i = 0; i < g->V(); i++)
{
GrafType::IteratorOutEdge Iterator(g, i);
Edge *Ed = Iterator.beg();
bool it = true;
while (it && Ed != NULL)
{
int v1;
if (Ed->v1->index == i)
v1 = Ed->v2->index;
else
v1 = Ed->v1->index;
try { this->g->InsertE(v1, i, Ed->GetW()); }
catch (QString e) { result = e; return; }
it = ++Iterator;
Ed = *Iterator;
}
}
}
void Route(int v1)
{
Vertex_Simply *v[MAX];
for (int i = 0; i < g->V(); i++)
v[i] = new Vertex_Simply(i);
int curr_v = v1;
int son_v = 0;
stack st;
v[curr_v]->w = 0;
v[curr_v]->parrent = -1;
st.push(v[curr_v]);
while (st.state())
{
v[g->V()] = st.pop();
v[g->V()]->state = true;
curr_v = v[g->V()]->vertex;
GrafType::IteratorOutEdge Iterator(g, curr_v);
Edge *Ed = Iterator.beg();
while (Ed != NULL)
{
int w = *Ed->GetW();
if (Ed->v1->index == curr_v)
son_v = Ed->v2->index;
else
son_v = Ed->v1->index;
if (v[son_v]->w > (v[curr_v]->w + w))
{
v[son_v]->w = v[curr_v]->w + w;
v[son_v]->parrent = curr_v;
}
if (!v[son_v]->state)
st.push(v[son_v]);
++Iterator;
Ed = *Iterator;
}
}
int s = MAX;
int v2;
for (int i = 0, total = g->V(); i < total; ++i)
if (v[i]->vertex != v1)
if (v[i]->state)
{
if (v[i]->w > s || s == MAX)
{
v2 = v[i]->vertex;
s = v[i]->w;
}
}
else
throw QString("Граф несвязный");
for (int i = 0; i < g->V(); i++)
{
if (i != v1)
{
result += QString("Кратчайший путь из %1 в %2 ").arg(i).arg(v1);
int j = 0;
way[j] = i;
int v2 = v[i]->vertex;
while (v2 != v1)
{
j++;
v2 = v[v2]->parrent;
way[j] = v2;
}
way[j + 1] = -1;
j = 1;
result.append(QString(" = %1").arg(way[0]));
while (way[j] != -1)
{
result.append(QString(" - %1").arg(way[j]));
j++;
}
result += '\n';
}
}
for (int i = 0; i < g->V(); i++)
delete v[i];
}
