I. ($ $) Set $L _1$ and $L _2$ is a two-plane line in space. In the standard Cartesian coordinate system, the line $L _1$ the point of the $a $, in the unit vector $v $ for the straight line direction, and the line $L _2$ the point with the $b $, in
STL-related notesThe following is the basic usage of the vector queue map set stackCan be compiled with comments to view1#include 2#include 3#include 4#include 5#include Set>6#include 7 using namespacestd;8 9 #defineREP (n) for (int o=0;oTen One
We can turn any priority queue into a sort method. Inserts all the elements into a priority queue that finds the smallest element, and then repeats the action of deleting the smallest element to delete them sequentially. Priority queues implemented
Oracle delete statement optimization example
When I got up to work today, I received an email from the customer saying that it took more than three hours to execute a delete SQL statement in the production environment. Finally, the customer had no
Background and significance
In the Web2.0 era, especially with the popularity of social networking sites like Flickr and Facebook, images, videos, audio, text and other heterogeneous data are growing at an alarming rate every day. For example,
TopicGiven a singly linked list, determine if it is a palindrome.Follow up:Could do it in O (n) time and O (1) space?IdeasUsing the double pointer method to find the midpoint position of the linked list, the elements after the midpoint of the list
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