大约有 43,000 项符合查询结果（耗时：0.0605秒） [XML]
What is the difference between lower bound and tight bound?
...the upper bound, while Omega is the lower bound. Theta requires both Big O and Omega, so that's why it's referred to as a tight bound (it must be both the upper and lower bound).
For example, an algorithm taking Omega(n log n) takes at least n log n time, but has no upper limit. An algorithm taking...
How can I update NodeJS and NPM to the next versions?
I just installed Node.js and npm (for additional modules).
47 Answers
47
...
Is the Scala 2.8 collections library a case of “the longest suicide note in history”? [closed]
... I can see your point. You hit on what is at the same time both a strength and a problem of Scala: its extensibility. This lets us implement most major functionality in libraries. In some other languages, sequences with something like map or collect would be built in, and nobody has to see all the h...
Why are function pointers and data pointers incompatible in C/C++?
I have read that converting a function pointer to a data pointer and vice versa works on most platforms but is not guaranteed to work. Why is this the case? Shouldn't both be simply addresses into main memory and therefore be compatible?
...
Signed versus Unsigned Integers
Am I correct to say the difference between a signed and unsigned integer is:
15 Answers
...
What are the best practices for using a GUID as a primary key, specifically regarding performance?
...have an application that uses GUID as the Primary Key in almost all tables and I have read that there are issues about performance when using GUID as Primary Key. Honestly, I haven't seen any problem, but I'm about to start a new application and I still want to use the GUIDs as the Primary Keys, but...
Should I put input elements inside a label element?
Is there a best practice concerning the nesting of label and input HTML elements?
14 Answers
...
Comparison of DES, Triple DES, AES, blowfish encryption for data
Does anyone have pros and cons together for comparing these encryption algorithms ?
8 Answers
...
Differences between fork and exec
What are the differences between fork and exec ?
9 Answers
9
...
Looking for a clear definition of what a “tokenizer”, “parser” and...
I am looking for a clear definition of what a "tokenizer", "parser" and "lexer" are and how they are related to each other (e.g., does a parser use a tokenizer or vice versa)? I need to create a program will go through c/h source files to extract data declaration and definitions.
...