Search results
Results from the WOW.Com Content Network
If G is a tree, replacing the queue of the breadth-first search algorithm with a stack will yield a depth-first search algorithm. For general graphs, replacing the stack of the iterative depth-first search implementation with a queue would also produce a breadth-first search algorithm, although a somewhat nonstandard one. [7]
A depth-first search (DFS) is an algorithm for traversing a finite graph. DFS visits the child vertices before visiting the sibling vertices; that is, it traverses the depth of any particular path before exploring its breadth. A stack (often the program's call stack via recursion) is generally used when implementing the algorithm.
Therefore, we can have this parameter as a local variable and return it from "strongconnect". I. e. we can store "lowlink" on the stack for recursive calls (= DFS algorithm stack). In such a way, this algorithm is connected to path-based strong component algorithm. From the stack of lowlinks we can compute the P stack.
Graph traversal is a subroutine in most graph algorithms. The goal of a graph traversal algorithm is to visit (and / or process) every node of a graph. Graph traversal algorithms, like breadth-first search and depth-first search, are analyzed using the von Neumann model, which assumes uniform memory access cost. This view neglects the fact ...
a depth-first search starting at A, assuming that the left edges in the shown graph are chosen before right edges, and assuming the search remembers previously-visited nodes and will not repeat them (since this is a small graph), will visit the nodes in the following order: A, B, D, F, E, C, G.
The simplest example that would illustrate the issue would be a N-star-graph with DFS beginning at the central vertex. The proper DFS algorithm will traverse this graph never exceeding stack depth of 1. The algorithm given in this entry will instantly reach stack depth of N, which is already a direct violation of fundamental properties of DFS.
Both methods will allow the flavors of the citrus and soda to "marinate together," she said. "The spices of Dr Pepper really work well as a hot drink, and the lemon just brings it all home," she said.
If G is a tree, replacing the queue of this breadth-first search algorithm with a stack will yield a depth-first search algorithm. For general graphs, replacing the stack of the iterative depth-first search implementation with a queue would also produce a breadth-first search algorithm, although a somewhat nonstandard one. [10]