Textbook in PDF format

Coding interviews are tough, and they're only getting tougher, typically demanding months of preparation. What we all want is a way to master algorithms and data structures without having to spend countless hours sifting through endless, unfocussed resources. Introducing "Coding Interview Patterns," your complete guide to mastering the key patterns needed to ace your next coding interview.
What’s inside?
An insider’s perspective on what interviewers are truly looking for and why.
101 real coding interview problems with detailed solutions.
Intuitive explanations that guide you through each problem as if you were solving it in a live interview.
1000+ diagrams to illustrate key concepts and patterns.
Two Pointers
Hash Maps and Sets
Linked Lists
Fast and Slow Pointers
Sliding Windows
Binary Search
Stacks
Heaps
Intervals
Prefix Sums
Trees
Tries
Graphs
Backtracking
Dynamic Programming
Greedy
Sort and Search
Bit Manipulation
Math and Geometry