// recorrido en profundidad desde v
void DepthFirstPaths::dfs(Grafo const& G, size_t v) {
marked[v] = true;
for (auto w : G.adj(v)) {
if (!marked[w]) {
edgeTo[w] = v;
dfs(G, w);
}
}
}
void DepthFirstSearch::dfs(Grafo const& G, size_t v) {
++_count;
_marked[v] = true;
for (auto w : G.adj(v)) {
if (!_marked[w]) {
dfs(G, w);
}
}
}
// recorrido en profundidad de la componente de v
void ComponentesConexas::dfs(Grafo const& G, size_t v) {
marked[v] = true;
_id[v] = _count;
++_size[_count];
for (auto w : G.adj(v)) {
if (!marked[w]) {
dfs(G, w);
}
}
}
void BreadthFirstPaths::bfs(Grafo const& G, size_t s) {
std::queue<size_t> q;
distTo[s] = 0;
marked[s] = true;
q.push(s);
while (!q.empty()) {
auto v = q.front(); q.pop();
for (auto w : G.adj(v)) {
if (!marked[w]) {
edgeTo[w] = v;
distTo[w] = distTo[v] + 1;
marked[w] = true;
q.push(w);
}
}
}
}