Depth First Search is an algorithm that could do a pre-order 202112102054# search on either 202112101956 or 202204112045.
DFS could be used for:
- finding 202205022012# of 202204112129
- determine 202205101200# and 202205101149#
- solving 202206091105#
Details
- If using against an #202204112129 which is not connected or #202204112118 that is not strongly connected, repeatedly call DFS on the unvisited nodes in order to visit all nodes in the graph.
Analysis
- The work runtime complexity for it is \(O(\vert E \vert \times \vert V \vert)\). This could be improved to \(O(\vert E \vert)\) if the data structure is a 202112101956.
Attention
- To avoid having an infinite loop, DFS must mark the visited nodes.
Implementation
void Dfs(Vertex V)
{
Visited[V] = True;
for each W adjacent to V
if (!Visited[W])
Dfs(W);
}