Design and implement a multithreaded or asynchronous web crawler program that can crawl all web links under the same host starting from a specified URL.
Let’s put aside the topics of efficiency and scalability, focus on the MVP that works. Given a starter url, we will use request …
A collection of Andrew Koenig’s “Much Ado About Nothing” topics on Drdobbs.
The gist: referencing an array by indexes and by pointers are equivalent in C, but when using pointer reference, it hard to check array bounds. That’s why …
GCD of two integer is the largest integer that divide both given integers.
Find the integer factorization of the two integer first, find the common factors and multiply together.
The key idea of Euclidean algorithm is to use the smaller integer to …
What file permissions the web documents should have in order to make development process easier?
The answer depends. For my use case, I want to avoid using sudo to copy documents
from the user’s home to the Apache document root directory every time I want to
update a file. Because the /etc/www directory owned by …
I was stuck for a while when solving the leetcode problem Remove 9 . After sketched a relatively complicated solution, I decided to give myself a hint by reading the discussion board. It is all about numeric base conversion! When I tried to write the routine to convert a decimal number to a number in base 9, I found it …