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S8

E3

Living on the edge!

Traversing through a graph is pretty edgy.

S8

E2

Jump around the indexes with DFS!

To go about coding the depth-first search algorithm (DFS), we revisit an old friend: adjacency lists.

S8

E1

Getting deep with depth-first search

When going through a maze, hitting a dead end isn't always a bad thing, especially in depth-first search (DFS).

S7

E8

Delivering muffins with BFS

Take a deep breath as we dive into breadth-first search, a super nifty graph traversing algorithm, which gives the shortest way to get from one node to another.

S7

E7

Plotting to represent a graph? We got you.

Adjacency lists are the new type of hybrid you're going to want to be driving around your code.

S7

E6

It's laughable how easy it is to get graphical

We tackle representing graphs and the parts that make it up.

S7

E5

To b-tree or not to b-tree

You won't want to miss the buzz about b-trees, the general version of a 2-3 tree, and a super efficient data storing tree structure.

S7

E4

A 2-3 tree for you and me

We dive into a tree data structure that can contain more than one key, which is unlike any tree structure we've covered so far. It is also the reason for their name: 2-3 tree.

S7

E3

Color me logarithmic!

If you thought self-balancing AVL trees were cool, just wait till you learn about red-black trees, which also run in logarithmic time!

S7

E2

Stay gold, AVL tree, stay gold.

Listen and learn about a pattern that you can use to figure out the minimum number of nodes we’ll need to create any height-balanced AVL tree, how it leads us to the Fibonacci sequence, and the golden ratio.

S7

E1

The AVL balancing act

We look at the earliest version of the height-balanced tree concept: the AVL tree.

S6

E8

Meet our good friend PATRICIA

Take a listen as our binary "dog" barks up the PATRICIA tree.

S6

E7

The cannibalistic efficiency of radix trees

Recycle, reuse, reduce your space by compressing your tries and creating radix trees.

S6

E6

Dear tries, you (auto)complete me

"Do or do not, there is no tries...wait, yes we're still talking tries."

S6

E5

Tries: the golden retriever of data structures

Branch out with us into the tree-like data structure that is tries.

S6

E4

Radix sort: the patient zero of sorting algorithms

We're getting to the root of where sorting algorithms began with radix sort ("radix" is latin for "root," this is a funny joke I assure you).

S6

E3

You can count on counting sort

We are nearing the end of our deep-dive into sorting algorithms, and looking at the beautiful efficiency of counting sort.

S6

E2

Getting to the bottom of the heap...sort.

Heapify all the things!

S6

E1

Heaps as arrays

We dig into how heaps are presented as arrays.

S5

E8

Shrinking and growing heaps with cats

We talk about how to add and remove values from a heap with the help of a few cats.

S5

E7

A heap of heaps

What are heaps? How are they related to binary trees? We use losers, winners, and some cards to help us get to the bottom of heaps!

S5

E6

The big O of quicksort

How does quicksort perform? And how do variables, like the pivot number, affect it? We walk through three examples to find out!

S5

E5

Quick sort Queendom

We learn all about our second divide and conquer algorithm, quick sort! We walk through how it works with help from a queendom, a few pointers, and a very helpful pivot number.

S5

E4

Merge sort stops the suckage

Finally, a sorting algorithm that doesn't suck! We explore how merge sort works and why it performs better than insertion, bubble, and selection sort.

S5

E3

Sorting with insertion sort

We dig into how insertion sort works, how we know where to do our inserting, and how this sorting algorithm performs, all with the help of our new boos.

S5

E2

What's bubble sort?

We are super bubbly about bubble sort! We dig into our second sorting algorithm and break down how it works and why it's actually not a great way of sorting things.

S5

E1

The simple selection sort

What is selection sort and how does it work? We use broken books and cookies to tell you all about it!

S4

E8

The Saron Sort

In our season finale, we're wrapping up our sorting algorithm classifications with two final categories: recursive vs. non-recursive and comparison vs. non-comparison. And we throw in some tomatoes, just for good measure.

S4

E7

Sorting the Michaels

What does it mean for a sorting algorithm to be "stable"? What about it being internal or external? We explore two more ways to classify sorting algorithms with the help of a few Michaels.

S4

E6

It's sorting time!

What's a sorting algorithm, and how do we categorize them? We dig into the six ways to classify them and explore why they're so important.

S4

E5

Sets, sets, everywhere

Sets are everywhere, and you're probably already working with them! We talk about how they're actually implemented and how well they perform.

S4

E4

Varon explains set theory

If you know about venn diagrams, then you basically know set theory! We explain how the two are related and connect it back to computer science with the help of some of our favorite foods.

S4

E3

Chaining to the rescue!

The Brians still need their own tables! We resolve our collision with a new strategy: chaining.

S4

E2

Too many Brians at the (hash)table

What do you do when you're in a hash table, and two pieces of data get assigned the same spot?! You've got a collision, and you need a resolution! We dig into one strategy to resolve a collision, and make sure each data has a spot.

S4

E1

Gotta hash 'em all

In our intro to hash tables, we use books, pizza toppings, and fridge operators to break down how hash tables work and what makes them so awesome.

S3

E8

BFS is your BFF

How does breadth-first search actually work? And how do you know whether you should use that, or depth-first search? And what's the Big O notation for BFS anyway? Let's find out!

S3

E7

Getting in line for breadth-first search

We are getting in line, or enqueuing, for breadth-first search! We walk through the steps and compare the process to depth-first search.

S3

E6

Drowning in DFS

How does depth-first search perform in terms of Big O notation? And how do you actually implement it, in coding terms? Let's find out!

S3

E5

When the washing machine's 'Inorder'

Let's dig into another depth-first search strategy: inorder! This time, we walk through a numerical example, traversing the tree with fresh, animated voices and a broken washing machine.

S3

E4

Preorder-ing at the family BBQ

We dive into depth-first search by exploring our first of three strategies: preorder! Let's walk through an example step-by-step and get to know members of Saron's fictitious tree family along the way.

S3

E3

Making brownies with depth-first search

How are algorithms related to brownies? And how do we navigate through the nodes of a tree when implementing depth-first search?

S3

E2

Seven bridges and a triangle

We use a triangle to trace simple paths and finally get to the bottom of the seven bridges problem that helped launch graph theory.

S3

E1

Oily graphs in Königsberg

We go all the way back to 1735 to a place called Königsberg. It had seven bridges and a tricky math problem that led to the creation of graph theory.

S2

E8

Let's get graphic

We explore what graphs are, how to define them, and how they're related to discrete mathematics.

S2

E7

Logarithm is gonna get you

What does it mean for an algorithm to be logarithmic? We revisit Big O notation, this time in the context of binary search.

S2

E6

Binary searching

If you've heard of binary trees, you've probably heard of binary search. But how does a binary search algorithm actually work? And do you have to have binary trees, or can you use it on other things?

S2

E5

What's a binary tree?

We dig into binary trees. What makes a tree binary, and why are they so popular in computer science? And how do you implement one?

S2

E4

Trees IRL

We explore the world (forest?) of trees even further! We learn what a tree's depth and height are, why they're important, and why unbalanced trees can cause computational problems.

S2

E3

Don't be stumped ... by trees

What's in a tree? And why do they always seem to pop up in computer science? We dig into the different parts of a tree, and how certain "tree truths" make them so special.

S2

E2

Queues IRL

Where do we see queues in real life? We explore how queues are used in different parts of the tech stack, and help us do things like send email, create animations, and manage requests.

S2

E1

Cue the Queues

What's in a queue? And how does it relate to stacks? We explore what they do, how they work, and how to implement them.

S1

E8

Stacks IRL

Where do you see stacks in real life? We look at how browser histories, call stacks, and undo/redo functionality in blogging are implementations of a stack. We also dig into what exactly a stack is made of and how it operates.

S1

E7

How do you make a stack overflow?

Stack Overflow is an awesome resource, but it's also a real life technical thing! We dig into what causes a stack overflow and unpack the rules of creating and working with stacks.

S1

E6

A friendly intro to Big O Notation

Big O Notation can be scary. But it doesn't have to be! We unpack this popular cs topic and show you how to use it to evaluate different data structures (like linked lists!) and make better programming decisions.

S1

E5

Linked Lists in Your Apartment

You may be familiar with arrays and hashes and variables, but how much do you know about linked lists? We dig into what they are, how they work, and the pros and cons of using this popular data structure.

S1

E4

Hexes and Colors

Vaidehi and Saron walk through how to count in hexes, discuss where we might see the hexadecimal system in real life, and breakdown the math that makes number 16 so special.

S1

E3

Hex Queen

Vaidehi and Saron walk through how to count in hexes, discuss where we might see the hexadecimal system in real life, and breakdown the math that makes number 16 so special.

S1

E2

What is encoding?

Vaidehi and Saron explore how encoding works and talk through some popular encoding schemes like ASCII, unicode, and base64.

S1

E1

Bits, Binary, and Bytes

We give you a beginner-friendly breakdown of how to count in binary (with some fun counting challenges you can join in on!), how it relates to bits and bytes, and why it's important for us to know as developers.

S1

E0

Season 1 Teaser

CodeNewbie is teaming up with the incredible Vaidehi Joshi to turn her base.cs blog series into an awesome podcast. Listen to a clip from the first episode, coming out Nov 8. Make sure to subscribe!