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What are the applications of binary trees?
...o. This gives us the next greatest value of the node we want to delete.
Now we copy all of 18's contents, except for the left and right pointers, and delete the original 18 node.
To create these images, I implemented an AVL tree, a self balancing tree, so that at any point in time, the tree ...
Strange, unexpected behavior (disappearing/changing values) when using Hash default value, e.g. Hash
...ll is just the default value, which we’ve been mutating all this time so now contains our new values. Since << doesn’t assign to the hash (there can never be assignment in Ruby without an = present†), we’ve never put anything into our actual hash. Instead we have to use <<= (whic...
MySQL 'create schema' and 'create database' - Is there any difference
...iew names. All tables and views were
created within a "schema". I do not know whether that version defined
some cross-schema access to tables and views, but I assume it did.
AFAIR, no product (at least back then) really implemented it, that whole
concept was more theory than practice.
OTOH, IS...
How do I get a YouTube video thumbnail from the YouTube API?
...d the code to conform to the new JSON structure. I am using the code right now and it's working LIVE. so don't say it's not working without reading the changes. Thanks!
– mauris
Jun 24 '12 at 7:44
...
Is mathematics necessary for programming? [closed]
...rcely against that. He said that programmers need only basic mathematical knowledge from high school or fresh year college math, no more no less, and that almost all of programming tasks can be achieved without even need for advanced math. He argued, however, that algorithms are fundamental & must-h...
Cartesian product of multiple arrays in JavaScript
...b ? cartesian(f(a, b), ...c) : a);
Special thanks to ZuBB for letting me know about linter problems with the original code.
Update 2020:
Since I wrote this answer we got even better builtins, that can finally let us reduce (no pun intended) the code to just 1 line!
const cartesian =
(...a) => ...
How to read contacts on Android 2.0
...S_PHONE_NUMBER));
if (Boolean.parseBoolean(hasPhone)) {
// You know it has a number so now query it like this
Cursor phones = getContentResolver().query( ContactsContract.CommonDataKinds.Phone.CONTENT_URI, null, ContactsContract.CommonDataKinds.Phone.CONTACT_ID +" = "+ contactId, nu...
How is set() implemented?
...where the time is O(n) then it is O(n).. I don't understand anything right now from all those tutorials.
– Claudiu Creanga
Sep 21 '16 at 21:13
4
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Should I use Java date and time classes or go with a 3rd party library like Joda Time?
...
EDIT: Now that Java 8 has been released, if you can use that, do so! java.time is even cleaner than Joda Time, in my view. However, if you're stuck pre-Java-8, read on...
Max asked for the pros and cons of using Joda...
Pros:
I...
How to create a shared library with cmake?
...ritten a library that I used to compile using a self-written Makefile, but now I want to switch to cmake. The tree looks like this (I removed all the irrelevant files):
...