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How to use Yubikey like a human | 如何像人类一样使用yubikey

How to use Yubikey like a human | 如何像人类一样使用yubikey

Passwords are a common tool in human society for protecting personal garbage. Some of our friends have lost access to their financial accounts or even their Human Qualification Certificates by exposin
2025-10-10
#Linux #Fedora #Security #Yubikey #Human Beings Interation
Auto-Snapshot with dnf on Fedora | 在fedora上使用dnf自动快照

Auto-Snapshot with dnf on Fedora | 在fedora上使用dnf自动快照

When I was using Arch Linux, one of my favorite packages was snap-pac, which works elegantly with pacman to create snapshots before and after any update. 当我在用 Arch Linux 的时候,我最喜欢的软件包之一是 snap-pac,它可以和
2025-10-06
#Linux #Fedora
ICPC: Mob Grinder

ICPC: Mob Grinder

ProblemLink of Problem SolutionThis is an interesting constructive problem. Step 1: Analysis Illegal SituationFirst we need to figure out in what kind of situation, it is an impossible task. Our targe
2025-09-19
#Algorithm
Get Longest Common Subsequence (LCS) in O(NlogN)

Get Longest Common Subsequence (LCS) in O(NlogN)

Intro: Get LCS (Longest Common Sunsequence) in O(NM)Let me beriefly explain the common way to get LCS in textbook. Let A and B are strings, consider using dynamic programming, dp[i][j] represents LCS
2025-09-08
#Algorithm
How to render 3D to 2D pixel art in Godot

How to render 3D to 2D pixel art in Godot

What is 3D to 2D Rendering?3D to 2D rendering is the process of automatically converting three-dimensional models into two-dimensional images using a computer. It’s a fundamental technique in computer
2025-09-05
#Algorithm #Godot
How to manage email like an Advanced-Linux-User

How to manage email like an Advanced-Linux-User

Introduction: Why?It seems you’re describing a world many of us can only dream of – one free from the daily deluge of digital communication. Imagine the luxury of a life unburdened by countless logins
2025-09-04
#Linux #Security
Coding Test: Find the Largest Stable Number | 笔试: 寻找最大的稳定数

Coding Test: Find the Largest Stable Number | 笔试: 寻找最大的稳定数

Problem 题面Give a number $N$, find the largest number $k$ satisfy the following requirements smaller than $N$: Sum of all digits of $k$ is prime Each digits of $k$ is larger than or equals to the pre
2025-08-31
#Algorithm
FTQC Resource Estimator

FTQC Resource Estimator

Why We Need an FTQC Resource EstimatorOn NISQ (Noisy Intermediate-scale Quantum) devices, measuring the resource cost of an algorithm is very intuitive. By counting the number of gates the algorithm
2025-08-31
#Quantum Computing
FTQC量子资源计数器

FTQC量子资源计数器

为什么需要FTQC资源计数器在NISQ(Noisy Intermediate-scale Quantum)设备上,衡量一个算法消耗的资源是非常直观的。通过算法使用的门的数量,物理比特的数量,电路的深度,物理硬件的各种错误率与保真度就可以大致的评估一个算法。但在FTQC(Fault Tolerant Quantum Computing)上事情却复杂一些。最关键的不同在于FTQC使用纠错码的方式通过设
2025-08-31
#Quantum Computing
How to setup and encrypt POSTEO mail service | 如何申请并加密POSTEO mail服务

How to setup and encrypt POSTEO mail service | 如何申请并加密POSTEO mail服务

Why You Need a Privacy-Focused Email Avoid Over-Centralization and Protect Your Real Identity: Most people currently use a setup consisting of a Gmail account plus a work or school email. Both are st
2025-08-31
#Security
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