Why does this post-assertion not work when it is fixed at the front of the string? Run the following code, and you will see that the first test passes, but the second test only passes the ^ anchor
Bash – Extract many pre-guides from a huge text file
I have a huge text file. I want to extract the first 532541 lines of it and store them in another file. Selecting the text with the mouse and executing ctrl c is obviously not a feasible Solution.<
CVE-2019-0708 Remote Desktop Code Execution Vulnerability
vulnerability environment Use VMware to install Windows7 SP1 to simulate the victim machine
curl https://raw .githubusercontent.com/rapid7/metasploit-omnibus/master/config/templates/metasploi
Differential search algorithms (non-recursive)
/**
* @param data Array with search (array)
* @param target target data
* @return returns the corresponding subscript, -1 means Not found
*/
public static int binarySearch(int[] data, int targ
Non-boring sequences(分治)
We were afraid of making this question too boring, so we decided to make this question super short. A sequence is called not boring, only if there is a unique number in each successive subsequence,
[PAT Level] 1043 IS IT A Binary Search Tree (25 points) (Judge whether or not the BST is traversed and outputs traversal traversal)
Title:
Enter a positive integer N (<=1000), and then enter the serial number of N points. If the sequence just entered is a binary search tree or its mirror image (the center is flipped 180°)
What is the shortcomings of operating systems – using files as two processes?
I have legacy code that needs to be improved for performance reasons. My application contains two executable files that need to exchange some information. In the legacy code, an exe is written to t
Division and recursive – FIBONACCI DVI Rabbit Problem
Fibonacci leonardo (about 1170-1250) is a famous Italian mathematician. Among the many interesting questions in his book “Abacus Book”, the most successful one is the famous “Rabbit Reproduction Pr
Array – How to use any () on a multidimensional array?
I’m testing an arbitrarily large, arbitrarily sized logical array, and I want to know if one or more of them are true. any() can only be in one dimension at a time Works, so does sum(). I know I ca
How to match the comparative operator in the regular expression
I am trying to create a regular expression that matches comparisons like this:
= 445
> 5
>= 22
< 3
<= 42
<> 10 I think this will work, but it won’t:
[=|>|<|>=|<|<=|<>]\s\d+ ‘>’very imp