Fix volume V()

This commit is contained in:
stefiosif
2022-08-09 00:15:26 +03:00
parent 433955e2cf
commit a40e42b964
3 changed files with 31 additions and 2 deletions

View File

@@ -53,6 +53,33 @@ bool Italiano<T>::query(const T& u, const T& v) {
template<typename T>
void Italiano<T>::remove(const T& u, const T& v) {
for (const auto& w : G.adjMatrix) {
// Check if (u,v) edge of T(w) || p(w,v) points to (u,v)
// If yes => set p(w, v) to point to the next edge (u',v) in Ein(v)
// If (u,v) the last edge, then set it to point to null
// If T(w) contains u' then the new edge reconnects v to T(w)
// As this needs to be checked, we set R(w) <- {v}
// If (u,v) is not edge of T(w) or is the last edge in Ein(v), R(w) <- phi
// Remove (u,v) from Eout(u) and Ein(v)
}
for (const auto& w : G.adjMatrix) {
// Check tentative pointers of the vertices in R(w).
// While there is a vertex x in R(w), scan the edges in Ein(x), starting
// from the edge pointed to by p(w,x), until an edge (u',x) for which
// p(w,u') != null is found or Ein(x) is exhausted.
// If such edge is found, x is removed from R(w).
// If the list is exhausted, set p(w,x) to null and M(w,x) to 0
// Then scan all Eout(x). If (x,x') is tree edge, add x' to R(w)
}
}
} // namespace algo

View File

@@ -45,6 +45,8 @@ Graph<T>::~Graph() {
template<typename T>
inline void Graph<T>::insert(const T& u, const T& v) {
Graph<T>::adjMatrix[u].insert(v);
Graph<T>::adjMatrix[v];
}
template<typename T>

View File

@@ -45,13 +45,13 @@ TEST_SUITE("Graph") {
CHECK_EQ(R, X);
}
TEST_CASE("Digraph::V and Digraph::E") {
TEST_CASE("Graph::V and Graph::E") {
// 1 --> 2 --> 3 --> 1
// 3 --> 4 --> 5 --> 3
// 2 --> 6 --> 7 --> 8 --> 6
// 6 --> 9 --> 10 --> 11 --> 12 --> 13 --> 9
// 12 --> 10
Digraph<std::uint16_t> G;
Graph<std::uint16_t> G;
G.insert(1, 2);
G.insert(2, 3);
G.insert(3, 1);