Power of Two Description Given an integer n, return true if it is a power of two. Otherwise, return false.
An integer n is a power of two, if there exists an integer x such that n == 2x
Example 1: Input: n = 1 Output: true Explanation: 20 = 1
Example 2: Input: n = 16 Output: true Explanation: 24 = …
2025-08-11299 words2 mins
leetcode - Fruits Into Baskets II
Fruits Into Baskets II Description You are given two arrays of integers, fruits and baskets, each of length n, where fruits[i] represents the quantity of the ith type of fruit, and baskets[j] represents the capacity of the jth basket.
From left to right, place the fruits according to these rules: …
2025-08-10117 words1 min
leetcode - Contains Duplicate
Contains Duplicate Description Given an integer array nums, return true if any value appears at least twice in the array, and return false if every element is distinct.
Example 1: Input: nums = [1,2,3,1]
Output: true
Explanation:
The element 1 occurs at the indices 0 and 3.
Example 2: Input: nums = …
2025-07-28192 words1 min
wwctf - Domain of Doom Revenge
Domain of Doom Revenge Description You’re querying domains, but some lead to dangerous places
The flag is hidden in an environment variable. Solve They provided us with the source code of the web application.
Here, we can see a regular expression that attempts to sanitize the input, which is …
2024-08-14743 words4 mins
Book
Reconocimiento Nmap Escaneamos la maquina para ver que puertos tiene abiertos:
nmap -p- --open --min-rate 5000 -Pn -n 10.10.10.176 PORT STATE SERVICE 22/tcp open ssh 80/tcp open http Gobuster Uso gobuster para hacer fuzzing para ver posibles directorios o archivos ocultos:
gobuster dir -w …
2024-07-241757 words9 mins
Cascade
Reconocimiento Nmap Escaneamos la maquina para ver que puertos tiene abiertos:
nmap -p- --open -sS --min-rate 5000 -Pn -n 10.10.10.182 PORT STATE SERVICE 53/tcp open domain 88/tcp open kerberos-sec 135/tcp open msrpc 139/tcp open netbios-ssn 389/tcp open ldap 445/tcp open microsoft-ds 636/tcp open …
2024-07-22566 words3 mins
Mantis
Reconocimiento Nmap Escaneamos la maquina para ver que puertos tiene abiertos:
nmap -p- --open --min-rate 5000 -Pn -n 10.10.11.8 PORT STATE SERVICE 53/tcp open domain 88/tcp open kerberos-sec 135/tcp open msrpc 139/tcp open netbios-ssn 389/tcp open ldap 445/tcp open microsoft-ds 464/tcp open …
2024-07-221781 words9 mins
Sizzle
Reconocimiento Nmap Escaneamos la maquina para ver que puertos tiene abiertos:
nmap -p- --open --min-rate 5000 -Pn -n 10.10.11.8 PORT STATE SERVICE 21/tcp open ftp 53/tcp open domain 80/tcp open http 135/tcp open msrpc 139/tcp open netbios-ssn 389/tcp open ldap 443/tcp open https 445/tcp open …
2024-07-10722 words4 mins
Reel
Reconocimiento Nmap Escaneamos la maquina para ver que puertos tiene abiertos:
nmap -p- --open --min-rate 5000 -Pn -n 10.10.10.77 PORT STATE SERVICE 21/tcp open ftp 22/tcp open ssh 25/tcp open smtp 135/tcp open msrpc 139/tcp open netbios-ssn 445/tcp open microsoft-ds 593/tcp open http-rpc-epmap …
2024-06-17243 words2 mins
¿Cómo subir un paquete a Pypi?
Configuración básica Iniciar sesión en pypi
Crear un token:
graph LR; A[Perfil]-->B[Account settings]; B-->C[API tokens] Crear un archivo .pypirc en /root: [pypi] username = __token__ password = (token) Creación del paquete Crea la carpeta principal: mkdir proyecto1 Dentro de esta crea la carpeta …