Alex Hernandez

@phantomhaze

Software dev, nature lover, Linux man, console cowboy. ❤️ to build with Next and JAM.

Joined July 2021

About

I'm a software developer in the Los Angeles area. I build web and fullstack applications, as well as participate in cybersecurity games (HTB, Vulnhub, OTW, etc).

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Alex Hernandez's blogs

PhantomExclusive - Web Dev, Back-end, and Digital Designs.blog.ahernandez.dev11 posts

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Recently published

AHAlex Hernandezblog.ahernandez.devMay 30, 2024 · 2 min read

Coding Interview Prep: Time Needed to Inform All Employees - C++

Here we will go over the solution to the Leetcode problem #1376: Time Needed to Inform All Employees The problem deals with figuring out how long it would take a head of a company to send an urgent message through an organization by giving it to his ...

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AHAlex Hernandezblog.ahernandez.devMay 30, 2024 · 3 min read

Mastering Regex Matching in Golang with Dynamic Programming

Want to learn how to solve Leetcode problem 10: Regular Expression Matching, using GoLang? Then follow along as I explain how to implement regex matching in Golang. What is Dynamic Programming (DP)? Dynamic programming is a problem-solving approach u...

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AHAlex Hernandezblog.ahernandez.devMay 29, 2024 · 2 min read

Coding Interview Prep: Time Needed to Inform All Employees - GoLang

Here we will go over the solution to the Leetcode problem #1376: Time Needed to Inform All Employees The problem deals with figuring out how long it would take a head of a company to send an urgent message through an organization by giving it to his ...

0

AHAlex Hernandezblog.ahernandez.devMay 28, 2024 · 2 min read

Coding Interview Prep: Binary Tree Maximum Path Sum

Here we will go over Leetcode problem 124: Binary Tree Maximum Path Sum The steps we must follow are: Define a helper function that calculates the maximum path sum with the highest node being the root of the path and updates the global maximum path ...

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AHAlex Hernandezblog.ahernandez.devMay 28, 2024 · 4 min read

Coding Interview Prep: BST Serialization in GoLang

Why Serialize a BST? Serialization is converting a data structure into bits the purposes of storing the data in memory or as a file for later retrieval, or to use less space when transmitting it across a network connection. A Binary Search Tree (BST)...

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Alex Hernandez

About

Available for

Alex Hernandez's blogs

Recently published

Coding Interview Prep: Time Needed to Inform All Employees - C++

Mastering Regex Matching in Golang with Dynamic Programming

Coding Interview Prep: Time Needed to Inform All Employees - GoLang

Coding Interview Prep: Binary Tree Maximum Path Sum

Coding Interview Prep: BST Serialization in GoLang

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Alex Hernandez

About

Available for

Alex Hernandez's blogs

Recently published

Coding Interview Prep: Time Needed to Inform All Employees - C++

Mastering Regex Matching in Golang with Dynamic Programming

Coding Interview Prep: Time Needed to Inform All Employees - GoLang

Coding Interview Prep: Binary Tree Maximum Path Sum

Coding Interview Prep: BST Serialization in GoLang