The notes on Introduction to Cybersecurity Module 1 the fundamentals of cybersecurity

Table of contents for CSES problem set solutions

Introductory Problems - Increasing Array Time limit: 1.00 s Memory limit: 512 MB You are given an array of n integers. You want to modify the array so that it is non-decreasing: every eleme...

Introductory Problems - Missing Number Time limit: 1.00s Memory limit: 512 MB You are given all numbers between $1,2,\ldots,n$ except one. Your task is to find the missing number. Input The...

Introductory Problems - Repetitions Time limit: 1.00 s Memory limit: 512 MB You are given a DNA sequence: a string consisting of characters A, C, G, and T. Find the longest repetition in th...

Introductory Problems - Weird Algorithm Time limit: 1.00 s Memory limit: 512 MB Consider an algorithm that takes as input a positive integer $n$. If $n$ is even, the algorithm divides it by...

tryhackme room Networking Concepts solving experience and tutorial note, and note on TCP/IP and OSI model.

tryhackme room Hydra solving experience and tutorial note

tryhackme room CTF collection volume 1 solving experience and tutorial note

tryhackme room "Metasploit: Introduction" solving experience