0-Basic question Linear regression considers $n$ samples $\{\mathbf{x}_1,\mathbf{x}_2,\cdots,\mathbf {x}_n\}$, each sample corresponds to $m+1$ dimensional feature$\mathbf{x}_i=\{x_{i0},x_{i1},x
Category: OS
Operating System (Operating System, referred to as OS) is a computer program that manages and controls computer hardware and software resources. It is the most basic system software that runs directly on the “bare metal”. Any other software must be supported by the operating system to run .
[Template] fast power
inline ll ksm(int x,int b){
int ans=1,base=x;
while(b){
if(b&1)ans*=x;
x*=x;
b>>=1;
}
return ans;
}
inline ll ksm(int x, int b){
int ans=1,base=x;
while(b){
if(b&1)ans*=x;
x*=x;
b>>=1;
}
return ans;
}
Common regular expression
[email protected] Only English letters, numbers, underscores, full stops, and underscores are allowed
^[a-zA-Z0-9_-][emailprotected ][a-zA-Z0-9_-]+(\.[a-zA-Z0-9_-]+)+$
高子航[email protect
SP1716 GSS3 dynamic DP (line segment tree + matrix multiplication)
Code:
#include
#define N 50001
#define ll long long
#define lson now<>1;
if(r>mid) t[now]=t[now]*t[rson];
}
void build(int l,int r,int now)
{
if(l==r)
{
t[now][0][0]=t[no
Is the operating system a big liar?
1 Chat Our programs lie quietly in a corner of the hard drive, waiting expectantly to be used by the owner. It is loaded by the operating system and then enters the memory to work, to be pr
Operating system development – start using QEMU from floppy drive
I have been reading BrokenThorn’s operating system development tutorial, I am creating and loading the second stage boot loader. This tutorial is for Windows, but I am doing this in Linux (Ubuntu 1
How to find the Android version name in programming?
I write code to find such an Android version
String version=Build.VERSION.RELEASE; By using this code I get the version number but I want the version name.
How to get the version name?
Operating system – How does the operating system perform compilation binaries?
When I studied process scheduling, this question came to my mind.
How does the operating system execute and control the execution of binary files and compiled files ? I think the OS may copy
Summary of some problems encountered in reloading operating systems
The words written in the front: I installed the system with a U disk, and created a boot disk with Microsoft mediacreationtool. 64-bit of win10.
Question 1: The partition does not need to be
Audio – How to use the direct write mode to write a simple SoundBlaster 16 driver for a hobby operating system?
I am developing a 32-bit, protected mode hobby operating system. Currently, I want to add simple sound support. For this, I want to use Sound Blaster 16 and write in direct mode Into the DAC (I wan