graph

问题 I'm sorry if this question sounds ambiguous but I was asked this in an interview. Write a program for BFS in a graph/tree. I wrote the popular code using a queue. Now he asked me to convert it to a DFS code by modifying just one line of the BFS code I had just written. The only answer I could think of was to use a stack for DFS. Then I implemented the stack using 2 queues. So in the end my answer was: use 1 queue for BFS. for DFS use 2 queues instead. He did not give me any feedback . Wasn't

问题 I'm sorry if this question sounds ambiguous but I was asked this in an interview. Write a program for BFS in a graph/tree. I wrote the popular code using a queue. Now he asked me to convert it to a DFS code by modifying just one line of the BFS code I had just written. The only answer I could think of was to use a stack for DFS. Then I implemented the stack using 2 queues. So in the end my answer was: use 1 queue for BFS. for DFS use 2 queues instead. He did not give me any feedback . Wasn't

问题 I have a complicated graph that I build using the python networkx library and I am trying to draw it in an understandable way. My data is structured in a way that I always have a central node, then a set of nodes that are at distance 1 from the center, and then another set of nodes which are at distance 2 from the center. By "distance" I mean the minimum number of edges before reaching the central node. Because of this structure, I would like to draw the graph in a radial fashion, where the

问题 I have this graph: which is built in ChartJS, however, between 1pm and 5:30pm, there was no data. All I want the chart to do is display that there is no data, rather than joining the two points. Can this be done? In theory I have a new value every 5 seconds, but this could reduce, so I guess I would need to be able to set a tolerance of gaps to join vs gaps to show? ChartOptions shown below: myChart = new Chart(ctx, { type: 'line', data: { labels: timestamp, datasets: [{data: speed

问题 Closed . This question needs to be more focused. It is not currently accepting answers. Want to improve this question? Update the question so it focuses on one problem only by editing this post. Closed 7 years ago . Improve this question How the forum TinkerPop can be addressed? Is it going to specify a standard for the Graph DBs and the related technology Frameworks? In this effort TinkerPop is considered as an authority or pioneer in some sense? I was not able to understand these by going

问题 I am using different libraries like pandas and numpy for generating a dataframe, which eventually generate a graph. Now, I need to show this graph into a simple webpage which is in HTML. Note: I am also willing to take 2-3 input from user in HTML page then pass that data to my python file. Afterwards, python file generates a graph based on given data(from HTML page) and I need to pass this graph to an HTML page. df[[main_data]].plot() Here, main_data is variable whose value is coming from

问题 I'm new to c#, wpf and the pdfsharp library. This is my XAML Code: <Grid> <zoom:ZoomControl> <graphsharp:GraphLayout x:Name="graphLayout" Graph="{Binding ElementName=root, Path=GraphToVisualize}" LayoutAlgorithmType="FR" OverlapRemovalAlgorithmType="FSA" HighlightAlgorithmType="Simple"></graphsharp:GraphLayout> </zoom:ZoomControl> <Button Content="Button" Height="23" Name="button1" Width="75" Margin="12,294,658,412" Click="button1_Click" /> </Grid> I want now save my "graphLayout" to a pdf

问题 I am using OSMnx to get clean intersections from OpenStreetMaps road network. The intersection nodes are currently in (x,y) coordinates, but I want to plot them using lat lon coordinates. From the example Jupiter notebook, OSMnx Example #14 Clean Intersection Cluster Nodes, I am able to get the street network and call ox.clean_intersections to produce the clean intersections. import osmnx as ox, matplotlib.pyplot as plt, numpy as np ox.config(use_cache=True, log_console=True) %matplotlib

问题 I am using OSMnx to get clean intersections from OpenStreetMaps road network. The intersection nodes are currently in (x,y) coordinates, but I want to plot them using lat lon coordinates. From the example Jupiter notebook, OSMnx Example #14 Clean Intersection Cluster Nodes, I am able to get the street network and call ox.clean_intersections to produce the clean intersections. import osmnx as ox, matplotlib.pyplot as plt, numpy as np ox.config(use_cache=True, log_console=True) %matplotlib

问题 I keep getting this error for the code below. Upon reading this, I believed my error to be the it++ in my for loop, which I tried replacing with next(it, 1) but it didn't solve my problem. My question is, is the iterator the one giving me the issue here? #include <iostream> #include <vector> #include <stack> #include <set> using namespace std; struct Node { char vertex; set<char> adjacent; }; class Graph { public: Graph() {}; ~Graph() {}; void addEdge(char a, char b) { Node newV; set<char>