Data Structures & Algorithms

Collection of all data structures and algorithm challenges completed from beginning of course at code fellows to now.

Course 301 Challenges

Array

• Filter
• Map
• Reduce

Object

• Objects

String

• .slice(), .splice(), .split(), .join()
• .includes(), .every(), .charAt()

Regular Expressions

• Regex 1
• Regex 2

Other

• Value vs Reference
• Chaining
• For Each
• Nested Loops
• Sorting
• Combination of Everything

Course 401

String

• All Permutations of a String

Array

• Reverse
• Shift
• Binary Search
• Second Max
• Chess Check Checker
• Min and Max Number of Zeros in Sorted Rows

Linked-List

• Singly Linked List Implementation
• Merge Linked Lists

Stacks + Queues

• FIFO Animal Shelter
• Queue Implementation w/ Stacks
• Stack + Queue Implementation (Linked-List)

Map / Hashtable

• Implementation
• Left Join Two Map Objects
• Two Sum

Stream

• K Most Frequent Values in Stream

Trees

• Even Count
• Even Count in Subtree
• Depth of Value
• Find Value Node
• Find Path
• FizzBuzz Tree
• Tree Intersection

Graph

Sorting