Computer Science 💻 – Tony’s Blog ✍️

Code 28: Python Project Packaging & Distribution

python

How to Package & Distribute a Python Project

Code 27: VS-Code Custom Interpreter & Virtual Environments

coding

python

Automate Selection of Python Interpreter & Virtual Environment Activations to Save Time and Avoid Confusion

Code 26: `pip` versus `pip-tools`

coding

python

Virtual Environment & Dependencies Management

DSA 51: Array-Based Heaps [Part 1]

data structures

algorithms

Heaps Cool Data Structure 😎

DSA 52: Array-Based Heaps - Exercises

data structures

algorithms

Heaps Useful Data Structure 🔨

DSA 50: Binary Search Trees - Exercises

data structures

algorithms

Ch.15 Max, Pre & Post-Order Traversals

DSA 49: Binary Search Trees - Delete Review

data structures

algorithms

A Thoroughly Commented Scenario-Style Coding of BST’s delete_node Function

DSA 48: Binary Search Trees - Review

data structures

algorithms

Writing BST Operations From Scratch All At Once

DSA 46: Binary Search Trees - Delete [Part 9]

data structures

algorithms

Cleaner Implementation with Less Code

DSA 47: Binary Search Trees - Traverse [Part 10]

data structures

algorithms

In-order Traversal Implementation

DSA 45: Binary Search Trees - Delete [Part 8]

data structures

algorithms

Wip Attempt 2: Zero, 1 or 2 Children

DSA 44: Binary Search Trees - Delete [Part 7]

data structures

algorithms

Wip Attempt 1: Zero or 1 Children Nodes Only

DSA 42: Binary Search Trees - Alternative Approaches [Part 5]

data structures

algorithms

Learning to Convert between Recursion and Iterative Approaches

DSA 43: Binary Search Trees - Sir-Insert-A-Lot [Part 6]

data structures

algorithms

Insert a List of Integers into a Binary-Tree

DSA 41: Binary Search Trees - Insertion [Part 4]

data structures

algorithms

Insertion Attempt

DSA 40: Binary Search Trees - Search [Part 3]

data structures

algorithms

First Attempt Raw

Code 25: `locals()`

coding

python

Useful Built-in Function to Obtain Locals Variables & Their Values

DSA 39: Binary Search Trees - Rules [Part 2]

data structures

algorithms

A basic BST Implementation

DSA 37: Singly & Doubly Linked List - Exercises

data structures

algorithms

Chapter 14 Exercises 1-5, J.Wengrow Vol 2

DSA 38: Binary Search Trees - Basics [Part 1]

data structures

algorithms

Trees & Binary Trees: Useful Terms

GO 1: Install & G’Day World

coding

golang

Let’s Go 🚤!

DSA 36: Doubly Linked List [Part 4]

data structures

algorithms

Allowing for Forward and Backwards Traversal

DSA 35: LinkedList - Insert & Delete [Part 3]

data structures

algorithms

The Two Other Important Operations

Code 24: Falsy (& Truthy) Values

coding

python

Learning Pythonic Programming with Falsy Values

DSA 34: LinkedList - Read & Search [Part 2]

data structures

algorithms

Two Important Operations as Functions

DSA 31: Quickselect [Part 2]

data structures

algorithms

Getting the kth item by adapting the quicksort algorithm

DSA 33: Nodes & Linked Lists [Part 1]

data structures

algorithms

Brief introduction to node-based data structures

DSA 32: Quick Algorithms - Exercises [Part 3]

data structures

algorithms

Chapter 13 Exercises, J.Wengrow Vol 1

DSA 30: Quicksort [Part 1]

data structures

algorithms

Implementation with Partitioning

DSA 29: Dynamic Programming - Exercises [Part 2]

data structures

algorithms

Addition, Golomb & Unique Path Questions

DSA 28: Dynamic Programming [Part 1]

data structures

algorithms

Improving Function Efficiency with the Memoization Technique

DSA 27: Anagram - Call Stack

data structures

algorithms

An introductory look at the call stack of the anagram recursive function

DSA 26: Recursion - Anagram Generation [Part 7]

data structures

algorithms

Anagram Recursive Function From Scratch

Code 23: Logging

coding

python

Learning Logs for Different Levels

DSA 25: Recursion - Exercises [Part 6]

data structures

algorithms

More recursion examples and exercises

DSA 24: Recursion - 3 More Examples [Part 5]

data structures

algorithms

Summation, String-Reversal & Counting-Letter

DSA 23: Recursion - In-Place Modification [Part 4]

data structures

algorithms

Creating & Modifying Arrays

DSA 22: Recursion - Factorial [Part 3]

data structures

algorithms

DSA 21: Recursion - With Base-Case [Part 2]

data structures

algorithms

Proper structure of a recursive function

DSA 20: Recursion [Part 1]

data structures

algorithms

Comparing a simple while-loop versus a recursive function

DSA 19: Queues - Print [Part 2]

data structures

algorithms

Implement a simple interface for a PrintManager class

DSA 18: Queues [Part 1]

data structures

algorithms

Queues are like a Macca’s Drive-Thru

DSA 17: Stacks - Exercises [Part 3]

data structures

algorithms

Chapter 9, J.Wengrow Vol 2

DSA 16: Stacks - Linter [Part 2]

data structures

algorithms

Recording first attempt writing a (Braces) Linter class

DSA 15: Hash Tables - Exercises [Part 4]

data structures

algorithms

Chapter 8 Exercises, J.Wengrow Vol 2

DSA 14: Hash Table - Speed Comparisons [Part 3]

data structures

algorithms

Improving time-complexity of an algorithm with a hash table

DSA 13: Stacks - An Abstract Class [Part 1]

data structures

algorithms

Sometimes it’s nice to be structured & orderly

DSA 12: Hash Tables - Collisions [Part 2]

data structures

algorithms

Collisions in Hash Tables explained with a suggestion solution

DSA 11: Hash Tables - Hash Functions [Part 1]

data structures

algorithms

Create hash tables, hash functions and replicate how the data is in memory

DSA 10: Insertion Sort - Shift & Insert

data structures

algorithms

3rd attempt which uses less variable assigning

DSA 9: Insertion Sort - With Test Scenarios

data structures

algorithms

Equivalent Implementations Using for & while-loops

DSA 8: Big O - Analysing Algorithms

data structures

algorithms

Describing Algorithms & Functions in Big O notation - Chapter 5 Exercises, J.Wengrow Vol 2

LeetCode 5: 49 - Group Anagrams

leetcode

DSA 7: \(BubbleSort()\) Practice

data structures

algorithms

Implementing from scratch and charting the time complexity

DSA 6: Binary Search Practice

data structures

algorithms

Writing binary search from scratch and testing array sizes

DSA 5: Big O - String Select Function

data structures

algorithms

Chapter 3 Exercise 4, J.Wengrow Vol 2

DSA 4: Big-O - Chessboard & Grains Problem

data structures

algorithms

Chapter 3 Exercises 3, J.Wengrow Vol 2

DSA 3: Binary Search - Exercises

datastructures

algorithms

Chapter 2 Exercises, J.Wengrow Vol 2

DSA 2: Array and Sets - Exercises

datastructures

algorithms

Chapter 1 Exercises, J.Wengrow Vol 2

DSA 1: Big-O - Arrays and Sets

datastructures

algorithms

Big-O for Array Operations

Code 22: Python Metaclasses - Customising Class Creation

coding

python

Being very meta

DP 4: Singleton Pattern

design patterns

A Design (or Anti) Pattern Allowing Only A Single Instance

Code 21: Magic Method: `call`

coding

python

Allowing instances to be called like functions

Code 20: Unicode, UTF-8 and Bytes

coding

Converting my (Chinese) name to bytes and back

[INCOMPLETE] DP 3: Interfaces [Part 2] - Protocols

design patterns

Programming to Interfaces rather than Implementation specificsgit

DP 2: Interfaces [Part 1] - `ABC` Abstract Base Classes

design patterns

Programming to Interfaces rather than Implementation specifics

Code 19: `uv` Python & Package Manager

coding

python

A modern alternative to creating & managing Python projects

DP 1: Encapsulation - Getter Method in Python

design patterns

Using Python’s @property to create a getter method

Code 15: Python Exceptions 101

coding

python

Del ving into Python Exceptions, In-Builts vs Custom Exceptions, Assert, Raise and Exception-Handlers

Code 18: Introduction to C# in Visual Studio Code

c#

Creating, Building and Running Simple C# Console Apps

Code 17: Transfer Multiple Issues via Github API in Bash

coding

github

bash

Run a simple loop to transfer multiple issues from one repo to another

Code 16: Open Source as a Beginner

coding

python

Learning How To Contribute to Open Source Projects as a Beginner

Code 14: Python Classes Basics 101

coding

python

Python Classes, Instance Objects, Data Attributes and Method Objects

Code 13: Shallow or Deep?

coding

python

Learning to copy the right way

Code 12: Create new key-bindings in VSCode via JSON file

coding

vscode

A handy keybinding to switch between Terminals in VSCode

Code 11: Using Github API via Python

github

api

python

Learn to update an Issue Description with Github’s API

Code 10: Add a script to PATH

coding

linux

Run a script without specifying its path

Code 9: Creating and using Symlinks

coding

linux

Avoiding unnecessarily duplicating files with Symlinks

Code 8: How to install Quarto via WSL

coding

linux

Migrating quarto blog from windows to wsl

Code 7: Virtual Environments

coding

python

Setting up virtual environments to produce reproducible work

Code 6: Measuring Model Accuracy

machine learning

Step-by-step guide on how to measure accuracy of a deeplearning model

Code 5: Debugging a 1-Hidden-Layer Neural Network Model

coding

debugging

Documenting my debugging of a neural network model I built from scratch

Code 4: Create new Users in WSL

coding

linux

Quick instructions to set up a new user in wsl

Code 3: Bash Basics

coding

linux

bash

Learning Bash from scratch

Code 2: Data Science Machine

coding

linux

How to setup a Linux-based Python on a Windows PC for Data Science and Deep Learning Projects

Code 1: Github Issues Automation

coding

github

How to automate the closing of an issue in Github Projects via a Commit Message

LeetCode 4: 74 - Search a 2D Matrix

leetcode

Almost the same as binary search problem

LeetCode 3: 704 - Binary Search

leetcode

First binary search question

LeetCode 2: 150 - Evaluate Reverse Polish Notation

leetcode

Implement a Stack Class using Postfix Notation

LeetCode 1: 155 - Min Stack

leetcode

An introduction to .append(), .pop() and .min() list functions and creating them as method as part of a class

❄️LeetCode Posts❄️

leetcode

hello world

A page to archive my (naively hopeful daily) leetcode attempts.