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What's the most efficient way to erase duplicates and sort a vector?
...fficient than using a set. I added a new more efficient method, using an unordered_set.
Keep in mind that the unordered_set method only works if you have a good hash function for the type you need uniqued and sorted. For ints, this is easy! (The standard library provides a default hash which is sim...
Efficient way to insert a number into a sorted array of numbers?
...t I needed to change the ternary to return c == -1 ? pivot : pivot + 1; in order to return the correct index. Otherwise for an array with length 1 the function would return -1 or 0.
– Niel
Jul 13 '15 at 18:08
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What is the rationale for all comparisons returning false for IEEE754 NaN values?
...ly exclusive relations are possible: less than, equal, greater than, and unordered. The last case arises when at least one operand is NaN. Every NaN shall compare unordered with everything, including itself.
As far as writing extra code to handle NaNs goes, it is usually possible (though not alway...
get path for my .exe [duplicate]
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"Application.StartupPath will be effected by "Working Directory" if it's set in the exe shortcut, or the process is started from another apps."
– Pedro77
Jan 16 '15 at 10:44
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c++ 代码提升权限，请求管理员身份运行权限 - C/C++ - 清泛网 - 专注C/C++及内核技术
...us == ERROR_FILE_NOT_FOUND) {
// The file defined by lpFile was not found and
// an error message popped up.
UpdateMessage(_T("升级包不存在，请检查！"));
}
CString strMsg;
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c++ 代码提升权限，请求管理员身份运行权限 - 脚本技术 - 清泛IT社区，为创...
...sp; // The file defined by lpFile was not found and
// an error message popped up.
&nb...
python pandas dataframe to dictionary
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If you want a simple way to preserve duplicates, you could use groupby:
>>> ptest = pd.DataFrame([['a',1],['a',2],['b',3]], columns=['id', 'value'])
>>> ptest
id value
0 a 1
1 a 2
2 b 3
>>> {k: g["value"].tolist() for k,g in ptest.groupby("id"...
How to select an element by classname using jqLite?
I'm trying to remove jquery from my Angular.js app in order to make it lighter, and put Angular's jqLite instead. But the app makes heavy use of find('#id') and find ('.classname'), which are not supported by jqLite, only 'tag names' (as per documentation)
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Partial classes in separate dlls
...es because circular references are not allowed and they would be needed in order for different parts of the class to interact.
– Zar Shardan
May 12 '19 at 22:01
add a comment
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Java: int array initializes with nonzero elements
...here it is not. Such a behavior occurs first in JDK 7u4 and also occurs in all later updates (I use 64-bit implementation). The following code throws exception:
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