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Tricky Google interview question
... implementation of Dijkstra’s solution.
int main()
{
const int n = 20; // Generate the first n numbers
std::vector<int> v(n);
v[0] = 1;
int i2 = 0; // Index for 2
int i5 = 0; // Index for 5
int x2 = 2 * v[i2]; // Next two candidat...
How to get a value from a cell of a dataframe?
...ue using the column name:
In [3]: sub_df
Out[3]:
A B
2 -0.133653 -0.030854
In [4]: sub_df.iloc[0]
Out[4]:
A -0.133653
B -0.030854
Name: 2, dtype: float64
In [5]: sub_df.iloc[0]['A']
Out[5]: -0.13365288513107493
...
Convert NaN to 0 in javascript
Is there a way to convert NaN values to 0 without an if statement:
11 Answers
11
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How do I convert a TimeSpan to a formatted string? [duplicate]
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edited Aug 16 '09 at 17:51
answered May 8 '09 at 22:22
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Share Large, Read-Only Numpy Array Between Multiprocessing Processes
I have a 60GB SciPy Array (Matrix) I must share between 5+ multiprocessing Process objects. I've seen numpy-sharedmem and read this discussion on the SciPy list. There seem to be two approaches-- numpy-sharedmem and using a multiprocessing.RawArray() and mapping NumPy dtype s to ctype s. ...
Swapping column values in MySQL
...
204
I just had to deal with the same and I'll summarize my findings.
The UPDATE table SET X=Y, Y=...
How to get box-shadow on left & right sides only
...
+50
NOTE: I suggest checking out @Hamish's answer below; it doesn't involve the imperfect "masking" in the solution described here.
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Moving decimal places over in a double
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190
If you use double or float, you should use rounding or expect to see some rounding errors. If yo...
Circle drawing with SVG's arc path
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answered Apr 21 '11 at 0:41
Todd MainTodd Main
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Fastest way to reset every value of std::vector to 0
...at's the fastest way to reset every value of a std::vector<int> to 0 and keeping the vectors initial size ?
6 Answ...