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The most efficient way to implement an integer based power function pow(int, int)
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396
Exponentiation by squaring.
int ipow(int base, int exp)
{
int result = 1;
for (;;)
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Most efficient way to reverse a numpy array
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edited May 23 '17 at 12:26
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answered Jul 21 '11 at 5:25
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How to install Android SDK Build Tools on the command line?
...you need to install multiple packages do:
android update sdk -u -a -t 1,2,3,4,..,n
Where 1,2,..,n is the package number listed with the list command above
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Why is a pure virtual function initialized by 0?
...This is described in his book, The Design & Evolution of C++, section 13.2.3:
The curious =0 syntax was chosen ...
because at the time I saw no chance of
getting a new keyword accepted.
He also states explicitly that this need not set the vtable entry to NULL, and that doing so is not ...
In jQuery, how do I get the value of a radio button when they all have the same name?
...r code, jQuery just looks for the first instance of an input with name q12_3, which in this case has a value of 1. You want an input with name q12_3 that is :checked.
$("#submit").click(() => {
const val = $('input[name=q12_3]:checked').val();
alert(val);
});
<script src="https://...
How to find gaps in sequential numbering in mysql?
...t on 100 rows):
SELECT (t1.id + 1) as gap_starts_at,
(SELECT MIN(t3.id) -1 FROM arrc_vouchers t3 WHERE t3.id > t1.id) as gap_ends_at
FROM arrc_vouchers t1
WHERE NOT EXISTS (SELECT t2.id FROM arrc_vouchers t2 WHERE t2.id = t1.id + 1)
HAVING gap_ends_at IS NOT NULL
gap_starts_at - first...
Base64 Decoding in iOS 7+
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439
Swift 3+
let plainString = "foo"
Encoding
let plainData = plainString.data(using: .utf8)
le...
How to scale SVG image to fill browser window?
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edited Jul 8 '12 at 3:26
answered Apr 13 '11 at 4:33
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Python: fastest way to create a list of n lists
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edited Oct 28 '19 at 15:53
answered Apr 1 '11 at 20:31
Sve...
How to add an empty column to a dataframe?
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463
If I understand correctly, assignment should fill:
>>> import numpy as np
>>>...