Algorithm – A similar Python list offers a different print layout

This is from Udacity's algorithm course and it was about the DFS representation of graphs.

# Answer code
def dfs_helper (self, start_node):
ret_list = [start_node.value]
        start_node.visited = true
Edges_out = [e for e in start_node.edges
                     if e.node_to.value != start_node.value]
        for edge in edges_out:
if not edge.node_to.visited:
ret_list.extend (self.dfs_helper (edge.node_to))
return ret_list
# printed: ['London', 'Shanghai', 'Mountain View', 'San Francisco', 'Berlin', 'Sao Paolo']
# my change
def dfs_helper (self, start_node):
ret_list = [start_node.value]
        # Your code here
start_node.visited = true
Edges_out = [e for e in start_node.edges if not e.node_to.visited] # only difference
for e in edges_out:
ret_list.extend (self.dfs_helper (e.node_to))
return ret_list
# printed:
# [ 'London',
#  'Shanghai',
#  'Mountain View',
#  'San Francisco',
#  'Berlin',
#  'Sao Paolo',
#  'San Francisco',
#  'Berlin',
#  'Sao Paolo']

It seems so strange that I even checked the data type and if I can access it with the index, but everything was fine, but I still have no idea why the print output is formatted differently.

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Reference Request – A Comprehensive List of Random Running Inequalities?

I am interested in finding a comprehensive list of all perceptible random walk differences.

ie $ S_n = sum_ {k leq n} X_i $ symmetrical for i.i.d $ X_i $

I can only seem to find books / papers listing the already known ones such as the maximum inequality of Kolmogorov.

Does anyone know such a paper / book?

android – In the Video App Purchase Application App List

I am developing an Android application with a list of videos that the user can view for 24 hours after purchasing the set amount. Should I go with the in-app purchase or third-party payment library?

I have some knowledge about in-app that there is a list of products that users can buy for a certain amount. My question is, if I need to add a product for every single video in the list when integrating in-app content into the application.

I have a scenario in mind, but I do not know if it's okay or not.
I'll add a single product in the in-app console that will be used to buy each video. Once the user has made the payment, I have a record on my server (stating that this video was purchased by this user). Then I will keep the same scenario for each additional purchase of a video by each individual user.

Will it work? Need a suggestion and if not, tell me another way.

array – To remove duplicate code when performing an action in a Python list filtered after an if statement

I've written the following function for a CLI tool, it works as expected, but it also contains duplicate code.

def populate_teams_tab (self):
teams = self.get_data (self.TEAMS_URL)
return_list = []
    for team in teams:
if self.IS_ROGUE:
if team['id'].upper () == "ROGUE":
# Here I have a few manipulation lines that add everything
# Add the ROGUE teams to a list that will be returned
# I will simplify these steps for clarity with the following line
return_list.append (team)
# Here I have the same manipulation lines that all add
# The teams to a list, which is returned
# I will simplify these steps for clarity with the following line
return_list.append (team)

Is adding another helper function the best idea or is there a more elegant way to get rid of the duplicated part?

8 – Can the look / length of the CKEditor Styles drop-down list be adjusted?

I've added custom styles to the CKEditor drop-down list in Styles, which are included in Drupal 8 by default. They work flawlessly. However, the drop-down list is not practical for editors because

  • It is not big enough
  • There is a lot of vertical space between the elements
  • Objects have the style they represent and take up even more space

Here is an excerpt from my standard drop-down menu "Styles":

Enter image description here

It's okay that the elements have the style they represent, except that it takes up a lot of space in the very small box, especially with a lot of vertical space between the elements.

I came up with one [hackish] This will prevent the items from adopting their representative style.

Enter image description here

But it is still too short, because there is a lot of space between the elements, so only four styles of 20 are displayed.


Is there a way to customize or at least extend the look of the styles drop-down list? Many posts and documentaries have not provided an answer, if there is one.

SharePoint List chart – SharePoint Stack Exchange

I'm a freshman trying to make a pie chart from a SharePoint list. The name of the list Mgmt_list and I want to show the number of "Responsible Dept". "Responsible Dept" is currently a string. This is what I cobbled together from another post.

Performance Tuning – How is this list created once and for all in Mathematica?

I try to solve the following situation. I have a function f This has a very complicated definition involving numerical optimization, eigenvalues ​​of matrices and so on.

More precisely, it is:

f[nmax_Integer, t_?NumericQ] : = NMaximize[{preClassicalCorrelations[nmax, t, th, phi], 0 <= th <= Pi, 0 <= phi <= 2 Pi}, {th, phi}]

The nmax is an upper cutoff in the size of the matrices involved. I wanted to apply this function to a list of values t with a fixed cutoff. For this I have defined the value list:

npoints: = 2
Values: = -1 + (2 / npoints) * range[1, nPoints - 1] // N

And then I tried to generate the list with:

list = f[500, #] & / @ Values

So I did it, if we have a second parameter set to a certain value, in this casenmax = 500,

Now the output of the list definition is just the definition of f

{NMaximize[{preClassicalCorrelations[500., 0., th, phi], 0. <= th <= 3.14159, 0. <= phi <= 6.28319}, {th, phi}]}

And it seems that things are calculated only when I try to access an item. This is pretty bad, because the function is very complicated and takes an eternity each time.

I wanted to apply f once and for all, and then edit the list as a list of 10 numbers directly.

How does that work in Mathematica?

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Workflow – Set list item entitlement using WCF services and their use

I used SharePoint Workflows to automate approval processes. Occasionally, some operations fail for no apparent reason. After the restart, it works fine.

To avoid these kinds of problems, we want to migrate to WCF services instead of SharePoint workflows. I am looking for an example of SharePoint WCF services for setting permissions that can be used.