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How can building a heap be O(n) time complexity?
...t of the nodes we are calling siftDown from the bottom of the tree, we are now calling siftDown from the top of the tree on each iteration! Although the tree is shrinking, it doesn't shrink fast enough: The height of the tree stays constant until you have removed the first half of the nodes (when yo...
How can I sanitize user input with PHP?
...'s a common misconception that user input can be filtered. PHP even has a (now deprecated) "feature", called magic-quotes, that builds on this idea. It's nonsense. Forget about filtering (or cleaning, or whatever people call it).
What you should do, to avoid problems, is quite simple: whenever you ...
This IP, site or mobile application is not authorized to use this API key
...rlatitude,yourlongitude&radius=5000&sensor=true&key=SERVERKEY
Now, to obtain the server key, just follow these steps:
1) Go to Developer Console https://code.google.com/apis/console/
2) In the Credentials, under Public API Access, Create New key
3) Select the server key from the opti...
How do I update each dependency in package.json to the latest version?
I copied package.json from another project and now want to bump all of the dependencies to their latest versions since this is a fresh project and I don't mind fixing something if it breaks.
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arrow operator (->) in function heading
...ifier ( argument-declarations... ) -> return_type
They are equivalent. Now when they are equivalent, why do you ever want to use the latter? Well, C++11 introduced this cool decltype thing that lets you describe type of an expression. So you might want to derive the return type from the argument...
Outline effect to text
...ive - like the names, links, etc. Changing the link colors etc. are common nowadays, so I want something new.
14 Answers
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How to get the last day of the month?
...s **kwargs I wouldn't rely on that and do a series of separate operations: now + relative(months=+1) + relative(day=1) + relative(days=-1) which is unambiguous.
– Alfe
Sep 24 '19 at 10:07
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How to open multiple pull requests on GitHub
...d commits in git should not be though of as just a patch, but as a patch knowing what patch was applied before this. So this is why one should create a new branch with new commits, whose diffs are maybe still the same, but whose links to the previous commits are different.
– M...
Why there can be only one TIMESTAMP column with CURRENT_TIMESTAMP in DEFAULT clause?
...TAMP and ON UPDATE
CURRENT_TIMESTAMP clauses. In addition, these clauses now can be used
with DATETIME column definitions. For more information, see Automatic
Initialization and Updating for TIMESTAMP and DATETIME.
http://dev.mysql.com/doc/relnotes/mysql/5.6/en/news-5-6-5.html
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Git: How to remove file from historical commit?
...0Mb). In another commit i add the same file but in the right size (small). Now my repo when i clone is too heavy :( How to remove that large file from repo history to reduce the size of my repo ?
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