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Tricky Google interview question
...; v(n);
v[0] = 1;
int i2 = 0; // Index for 2
int i5 = 0; // Index for 5
int x2 = 2 * v[i2]; // Next two candidates
int x5 = 5 * v[i5];
for (int i = 1; i != n; ++i)
{
int m = std::min(x2, x5);
std::cout << m << " "...
How to add a spinner icon to button when it's in the Loading state?
...
SHAZ
2,41566 gold badges2020 silver badges2929 bronze badges
answered Feb 10 '13 at 4:11
gurch101gurch101
...
What is the best way to compute trending topics or tags?
...rn (obs - avg) / std
Sample Output
>>> zscore(12, [2, 4, 4, 4, 5, 5, 7, 9])
3.5
>>> zscore(20, [21, 22, 19, 18, 17, 22, 20, 20])
0.0739221270955
>>> zscore(20, [21, 22, 19, 18, 17, 22, 20, 20, 1, 2, 3, 1, 2, 1, 0, 1])
1.00303599234
>>> zscore(2, [21, 22, 19, 18...
Generate random numbers with a given (numerical) distribution
....random.choice(), e.g.
numpy.random.choice(numpy.arange(1, 7), p=[0.1, 0.05, 0.05, 0.2, 0.4, 0.2])
If you are using Python 3.6 or above, you can use random.choices() from the standard library – see the answer by Mark Dickinson.
...
What is the difference between ui-bootstrap-tpls.min.js and ui-bootstrap.min.js?
.../localhost:8989/hello-world/js/vendor/angular-1.2.0-rc.3/angular.min.js:6:453
at http://localhost:8989/hello-world/js/vendor/angular-1.2.0-rc.3/angular.min.js:54:14
at http://localhost:8989/hello-world/js/vendor/angular-1.2.0-rc.3/angular.min.js:64:438
at A (http://localhost:8989/hello-w...
The modulo operation on negative numbers in Python
...ame sign as the denominator (divisor). Your expression yields 3 because
(-5) / 4 = -1.25 --> floor(-1.25) = -2
(-5) % 4 = (-2 × 4 + 3) % 4 = 3.
It is chosen over the C behavior because a nonnegative result is often more useful. An example is to compute week days. If today is Tuesday (day #2),...
CSS to set A4 paper size
...
251
I looked into this a bit more and the actual problem seems to be with assigning initial to page...
Numpy how to iterate over columns of array?
...
answered Apr 13 '12 at 21:59
tillstentillsten
11.5k33 gold badges2626 silver badges3737 bronze badges
...
Sass calculate percent minus px
...ad. Check browser compatibility on Can I use...
.foo {
height: calc(25% - 5px);
}
If your values are in variables, you may need to use interpolation turn them into strings (otherwise Sass just tries to perform arithmetic):
$a: 25%;
$b: 5px;
.foo {
width: calc(#{$a} - #{$b});
}
...
Python pandas Filtering out nan from a data selection of a column of strings
... 3
1 thg NaN 4
3 mol Graham NaN
4 lob NaN NaN
5 lob NaN NaN
[5 rows x 3 columns]
In [89]:
nms = nms.dropna(thresh=2)
In [90]:
nms[nms.name.notnull()]
Out[90]:
movie name rating
0 thg John 3
3 mol Graham NaN
[2 rows x 3 columns]
EDI...