Recent posts

The biggest deal is not in having a website but making sure it is on point and bringing it to the top in search engine rankings. However, it is not an easy job; knowing what to put and what not in it is a skillful one. The following ten...
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consider: static constexpr unsigned num_points {7810}; std :: array <double, num_points> axis; for (int i = 0; i <num_points; ++ i) {Axis [i] = 180 + 0.1 * i;} The axis is a constant at the class level. I want to avoid initializing it like any other global variable. Can it be done...
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How effective are Python resources (python, I think) in allocating a newly created instance of a class? I have a situation where I have to instantiate a node class millions of times to create a tree structure. Each of the node objects must be compact and contain only a...
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The following error is displayed when I open the create-react-app with npm start. I'm new to React and have had no problem using the command line to create a new app in the last few days. I tried to start npx, start npm, and reinstall npm for the updated version. Compilation...
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I have a list of channels like: List <String> locations = Arrays.asList ("US: 5423", "US: 6321", "CA: 1326", "AU: 5631"); And I want to convert Map <String, List <String >> like this: AU = [5631] CA = [1326] US = [5423, 6321] How can I do that?
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Due to a bug, I just discovered that this code works well with Visual Studio 17 and probably also with other compilers. Now I am curious to know why? #include <iostream> #include <string> std :: string foo () { returns nullptr; }int main () { car s = foo (); std :: cout << s <<...
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I have the chain and the board. Strings have the same number of letters as arrays. I have to divide s to create a list that has the same length as each element. s = ‘Python programming language’ arr = [‘lkjhgf’, ‘zx’, ‘qw’, ‘ertyuiopakk’, ‘foacdhlc’] How can I get my expected result?
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I wrote a simple code to compare random array differences and found something that I do not quite understand.I generate 2 tables filled with random numbers. Add differences between random numbers Print the average difference I would have expected the result to be a random number close to 0.5, but...
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I'm trying to run the new Canvas Xcode 11 feature, but the canvas is not showing. What am I doing wrong?I just created a new standard project (single-view application), compiled it and activated 'Editor> Editor and Canvas'. I can browse all the files in the project, nothing is displayed....
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I updated 'android.support:appcompat-v7' to 28.0.0. However, this resulted in a design error. In my Logcat: Fusion manifest, this error failed. How can I solve this problem?
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