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Cracking Coding Interviews
Slobodan Stipic
slobo80@gmail.com
@slobo80
www.DevAtHeart.com
@slobo80
Hi, I’m Slobo
slobo80@gmail.com
@slobo80
www.DeveloperAtHeart.com
Disclaimer
Everything I say is MY own opinion.
Microsoft does NOT approve this
message.
@slobo80
Remember Me
Do
Able
Know
Practice many problems
Write correct code on a
whiteboard
Computer science fundamentals
@slobo80
KNOW: Computer Science Fundamentals
Data Structures
Heap, Stack, Hash table, Queue, Linked list
Binary Arithmetic
Shift, XOR, OR
Recursion & Dynamic Programming
Trees & Graphs
Binary, AVL, DFS, BFS
@slobo80
KNOW: Computer Science Fundamentals
Multithreading
Semaphores, Locks, Deadlocks
Path Finding
Traveling salesman, A*, Shortest path
Sorting Algorithms
Quick, Merge, Insertion, External...
Probability
Geometry
@slobo80
ABLE TO: Whiteboarding
Are you able to write correct code?
No pseudo code!
Every semicolon counts
No IDE, no assistance
@slobo80
DO: Practice Many Problems
Get a good book – source of coding problems
Solve problems on a whiteboard
Have a sparring partner
Do it every day
@slobo80
Problem Classes
There are several problem classes
Each class has corresponding:
Algorithm
Data structures
@slobo80
You have a sorted array of zeros and ones.
Write a method that returns the position
of the first one.
@slobo80
A building has 3 elevators.
How would you design the elevator
system?
@slobo80