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What would cause an algorithm to have O(log n) complexity?
...most 1, we get
n / 2i ≤ 1
n ≤ 2i
log2 n ≤ i
In other words, if we pick an integer i such that i ≥ log2 n, then after dividing n in half i times we'll have a value that is at most 1. The smallest i for which this is guaranteed is roughly log2 n, so if we have an algorithm tha...
What's the difference between 'git merge' and 'git rebase'?
...isn't language or whether the user is a computer scientist or not. While rewording it in another way helps clarify the ends (ie. what happens), it fails at explaining the means (how it happens). Git requires understanding the means in order to understand the ends. It is precisely understanding the ...
Find and replace Android studio
Is there a way to find and replace all occurrences of a word in an entire project( not just a single class using refactor -> rename) and also maintain case, either in android studio or using a command line script?
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What are naming conventions for MongoDB?
...ch indicates that the key is meant to be an internal/private key. In other words, the _id is not intended to ever be edited or presented to anyone viewing the data of a collection.
– Beau Smith
Mar 2 '18 at 22:54
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Set value to NULL in MySQL
...n I make this happen?
I've tried inserting 'NULL' but this just adds the word NULL into the field.
9 Answers
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uint8_t vs unsigned char
... clear that one shouldn't expect a character at every position -- in other words that each element of the string/array is an arbitrary integer that one shouldn't make any semantic assumptions about. Of course all C programmers know this, but it may push beginners to ask the right questions.
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Which C++ idioms are deprecated in C++11?
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good and concise examples, one of which even carries the word "idiom" in it. well put
– Sebastian Mach
Feb 16 '12 at 15:12
2
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Database sharding vs partitioning
...e been reading about scalable architectures recently. In that context, two words that keep on showing up with regards to databases are sharding and partitioning . I looked up descriptions but still ended up confused.
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Why does Java have transient fields?
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The transient keyword in Java is used to indicate that a field should not be part of the serialization (which means saved, like to a file) process.
From the Java Language Specification, Java SE 7 Edition, Section 8.3.1.3. transient Fields:
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What is “overhead”?
I am a student in Computer Science and I am hearing the word "overhead" a lot when it comes to programs and sorts. What does this mean exactly?
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