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How can building a heap be O(n) time complexity?
... useful; for example, when retrieving items with integer keys in ascending order or strings in alphabetical order. The principles are exactly the same; simply switch the sort order.
The heap property specifies that each node in a binary heap must be at least as large as both of its children. In part...
How do I calculate tables size in Oracle
...table. Often you are interested to know "How much spaces the the Purchase Order table take, including any indexes" rather than just the table itself. You can always delve into the details. Note that this requires access to the DBA_* views.
COLUMN TABLE_NAME FORMAT A32
COLUMN OBJECT_NAME FORMAT A...
RESTful Authentication
...cated by signing the query parameters
sorted in lower-case, alphabetical order using the private credential
as the signing token. Signing should occur before URL encoding the
query string.
This technique is perhaps the more compatible with a Stateless architecture, and can also be implemente...
Reusable library to get human readable version of file size?
...came up with a version that avoids loops, using log2 to determine the size order which doubles as a shift and an index into the suffix list:
from math import log2
_suffixes = ['bytes', 'KiB', 'MiB', 'GiB', 'TiB', 'PiB', 'EiB', 'ZiB', 'YiB']
def file_size(size):
# determine binary order in ste...
Sort array of objects by single key with date value
...his ES6 one-liner might be of help. yourArr.sort((a, b) => a.yourNumericOrderingKey > b.yourNumericOrderingKey). In my case I had to sort based on an order key that was coming inside the objects of main array.
– keshavDulal
Sep 20 at 10:53
...
Git Bash is extremely slow on Windows 7 x64
... performance problems. To fix permanently, edit C:\Program Files (x86\Git\etc\profile and comment out the if-then-else where __git_ps1 is added to PS1.
– Tom
Jun 29 '15 at 11:12
7...
When/Why to use Cascading in SQL Server?
...onship can involve an exclusive "is part of" description. For example, an OrderLine record is part of its parent order, and OrderLines will never be shared between multiple orders. If the Order were to vanish, the OrderLine should as well, and a line without an Order would be a problem.
The canonic...
#pragma pack effect
...B(3) | BB(4) |
| CC(1) | pad.. |
And sizeof(Test) would be 2 × 4 = 8.
Order of variables in struct is also important. With variables ordered like following:
struct Test
{
char AA;
char CC;
int BB;
};
and with #pragma pack(2), the struct would be laid out like this:
| 1 | 2 ...
__lt__ instead of __cmp__
...
TypeError: Cannot create a consistent method resolution order (MRO) for bases object, ComparableMixin when I try this in Python 3. See the full code at gist.github.com/2696496
– Adam Parkin
May 14 '12 at 20:23
...
Volatile Vs Atomic [duplicate]
... This is only half the truth, you are missing the very important order-of-execution problem. See my explanation below.
– TwoThe
Nov 2 '13 at 18:05
23
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