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Check if an apt-get package is installed and then install it if it's not on Linux
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viam0Zahviam0Zah
23.9k88 gold badges6767 silver badges9494 bronze badges
36...
How can I change property names when serializing with Json.net?
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Martin Brown
22.2k1313 gold badges6969 silver badges105105 bronze badges
answered Jan 9 '12 at 23:26
Darin DimitrovDarin Dimitrov
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How can I create directory tree in C++/Linux?
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With C++17 or later, there's the standard header <filesystem> with
function
std::filesystem::create_directories
which should be used in modern C++ programs.
The C++ standard functions do not have the POSIX-specific explicit
permissions (mode) argument, though.
H...
What is the difference between NULL, '\0' and 0?
...st to the type void * is both a null pointer and a null pointer constant.
Additionally, to help readability, the macro NULL is provided in the header file stddef.h. Depending upon your compiler it might be possible to #undef NULL and redefine it to something wacky.
Therefore, here are some valid w...
GroupBy pandas DataFrame and select most common value
...ring about performing other agg functions in the .agg()
try this.
# Let's add a new col, account
source['account'] = [1,2,3,3]
source.groupby(['Country','City']).agg(mod = ('Short name', \
lambda x: x.value_counts().index[0]),
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How to parse a string to an int in C++?
...en as char *) into an int? Robust and clear error handling is a plus (instead of returning zero ).
17 Answers
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How does a Breadth-First Search work when looking for Shortest Path?
...seem to be missing one small part of this algorithm. I understand how a Breadth-First Search works, but I don't understand how exactly it will get me to a specific path, as opposed to just telling me where each individual node can go. I guess the easiest way to explain my confusion is to provide an ...
Get the generated SQL statement from a SqlCommand object?
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Hitesh Surani
8,73322 gold badges3333 silver badges5151 bronze badges
answered Nov 10 '10 at 16:22
FlapperFlapper
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What is the difference between C# and .NET?
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In addition to what Andrew said, it is worth noting that:
.NET isn't just a library, but also a runtime for executing applications.
The knowledge of C# implies some knowledge of .NET (because the C# object model corresponds to...
What is the difference between ? and Object in Java generics?
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Community♦
111 silver badge
answered Mar 24 '09 at 19:19
Johannes WeissJohannes Weiss
45.8k1515 gold ...