Data Structures & Algorithms — One-Page Cheat Sheet

The toolbox every interviewer asks about.

Foundations

• HOME
• Intro
• Big-O Notation
• Arrays
• Strings
• Linked Lists
• Stacks
• Queues / Deques
• Hash Maps
• Hash Sets
• Trees
• Binary Search Trees
• Heaps / Priority Queue
• Graphs
• Tries
• Union-Find

Sorting & Searching

• Binary Search
• Bubble / Insertion / Selection
• Merge Sort
• Quick Sort
• Heap Sort
• Counting / Radix

Algorithms

• Two Pointers
• Sliding Window
• Recursion
• Backtracking
• Dynamic Programming
• Greedy
• Divide & Conquer
• BFS
• DFS
• Dijkstra
• Topological Sort
• Bit Manipulation

Interview Prep

• Pattern Catalogue
• Complexity Cheatsheet
• LeetCode Roadmap
• System Design Intro

Examples

• Examples
• Cheatsheet
• Quiz
• Exercises
• Bootcamp
• Certificate
• Summary