Iterative DFS vs Recursive DFS and different elements order

I have written a recursive DFS algorithm to traverse a graph: void Graph<E, N>::DFS(Node n) { std::cout << ReadNode(n) << ” “; MarkVisited(n); NodeList adjnodes = Adjacent(n); NodeList::position pos = adjnodes.FirstPosition(); while(!adjnodes.End(pos)) { Node adj = adjnodes.ReadList(pos); if(!IsMarked(adj)) DFS(adj); pos = adjnodes.NextPosition(pos); } } Then I have written an iterative DFS algorithm using a stack: … Read more

Is Minimum Spanning Tree afraid of negative weights?

This is a follow-up question of Why most graph algorithms do not adapt so easily to negative numbers?. I think Shortest Path (SP) has problem with negative weights, because it adds up all weights along the paths and tries to find the minimum one. But I don’t think Minimum Spanning Tree (MST) has problems with … Read more

List all graphic image files with find? [closed]

Closed. This question does not meet Stack Overflow guidelines. It is not currently accepting answers. Want to improve this question? Update the question so it’s on-topic for Stack Overflow. Closed 1 year ago. Improve this question There are many types of graphic images in this huge archive such as .jpg, .gif, .png, etc. I don’t … Read more

How to add text to an image in java?

I need to add some texts to an existing table image (png). Which means that I need to “write” on the image and I need the option to select the text location. How can I do it? Answer It’s easy, just get the Graphics object from the image and draw your string onto the image. … Read more

What’s the fastest, pure Javascript, Graph visualization toolkit? [closed]

As it currently stands, this question is not a good fit for our Q&A format. We expect answers to be supported by facts, references, or expertise, but this question will likely solicit debate, arguments, polling, or extended discussion. If you feel that this question can be improved and possibly reopened, visit the help center for … Read more

How does glDrawArrays know what to draw?

I am following some begginer OpenGL tutorials, and am a bit confused about this snippet of code: glBindBuffer(GL_ARRAY_BUFFER, vertexBufferObject); //Bind GL_ARRAY_BUFFER to our handle glEnableVertexAttribArray(0); //? glVertexAttribPointer(0, 3, GL_FLOAT, GL_FALSE, 0, 0); //Information about the array, 3 points for each vertex, using the float type, don’t normalize, no stepping, and an offset of 0. I … Read more