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Organized one more time. Much better.

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John Washam 2016-06-23 14:00:09 -07:00
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@ -88,7 +88,7 @@ Some videos are available only by enrolling in a Coursera or EdX class. It is fr
* - Google uses clang-format (there is a command line "style" argument: -style=google)
* - Efficiency with Algorithms, Performance with Data Structures: https://youtu.be/fHNmRkzxHWs
- C++ Core Guidelines: http://isocpp.github.io/CppCoreGuidelines/CppCoreGuidelines
- review of C++ concepts: https://www.youtube.com/watch?v=Rub-JsjMhWY
* - review of C++ concepts: https://www.youtube.com/watch?v=Rub-JsjMhWY
* - compilers:
* - https://class.coursera.org/compilers-004/lecture/1
@ -145,6 +145,11 @@ Then test it out on a computer to make sure it's not buggy from syntax.
- Amortized Analysis: https://www.youtube.com/watch?v=B3SpQZaAZP4&index=10&list=PL1BaGV1cIH4UhkL8a9bJGG356covJ76qN
- Illustrating "Big O": https://class.coursera.org/algorithmicthink1-004/lecture/63
- Cheat sheet: http://bigocheatsheet.com/
-----------------------------------------------------
Trees
-----------------------------------------------------
* - Arrays: (Implement an automatically resizing vector)
* - Description:
- Arrays: https://www.coursera.org/learn/data-structures/lecture/OsBSF/arrays
@ -180,6 +185,7 @@ Then test it out on a computer to make sure it's not buggy from syntax.
* - Space
- contiguous in memory, so proximity helps performance
- space needed = (array capacity, which is >= n) * size of item, but even if 2n, still O(n)
* - Linked Lists
* - Description:
* - https://www.coursera.org/learn/data-structures/lecture/kHhgK/singly-linked-lists
@ -217,12 +223,14 @@ Then test it out on a computer to make sure it's not buggy from syntax.
* - Doubly-linked List
- Description: https://www.coursera.org/learn/data-structures/lecture/jpGKD/doubly-linked-lists
- No need to implement
* - Stacks
* - https://www.coursera.org/learn/data-structures/lecture/UdKzQ/stacks
* - https://class.coursera.org/algs4partI-010/lecture/18
* - https://class.coursera.org/algs4partI-010/lecture/19
* - https://www.lynda.com/Developer-Programming-Foundations-tutorials/Using-stacks-last-first-out/149042/177120-4.html
* - Will not implement. Implementing with array is trivial.
* - Queues
* - https://www.lynda.com/Developer-Programming-Foundations-tutorials/Using-queues-first-first-out/149042/177122-4.html
* - https://class.coursera.org/algs4partI-010/lecture/20
@ -245,6 +253,7 @@ Then test it out on a computer to make sure it's not buggy from syntax.
enqueue: O(1) (amortized, linked list and array [probing])
dequeue: O(1) (linked list and array)
empty: O(1) (linked list and array)
* - Hash tables
* - https://www.lynda.com/Developer-Programming-Foundations-tutorials/Understanding-hash-functions/149042/177126-4.html
* - https://www.lynda.com/Developer-Programming-Foundations-tutorials/Using-hash-tables/149042/177127-4.html
@ -271,29 +280,35 @@ Then test it out on a computer to make sure it's not buggy from syntax.
- exists(key)
- get(key)
- remove(key)
Tries
- https://www.coursera.org/learn/data-structures-optimizing-performance/lecture/08Xyf/core-introduction-to-tries
Disjoint Sets:
- https://www.coursera.org/learn/data-structures/lecture/JssSY/overview
- https://www.coursera.org/learn/data-structures/lecture/EM5D0/naive-implementations
- https://www.coursera.org/learn/data-structures/lecture/Mxu0w/trees
- https://www.coursera.org/learn/data-structures/lecture/qb4c2/union-by-rank
- https://www.coursera.org/learn/data-structures/lecture/Q9CVI/path-compression
- https://www.coursera.org/learn/data-structures/lecture/GQQLN/analysis-optional
Heap (data structure):
- https://en.wikipedia.org/wiki/Heap_(data_structure)
- https://www.coursera.org/learn/data-structures/lecture/2OpTs/introduction
- https://www.coursera.org/learn/data-structures/lecture/z3l9N/naive-implementations
- https://www.coursera.org/learn/data-structures/lecture/GRV2q/binary-trees
- https://www.coursera.org/learn/data-structures/supplement/S5xxz/tree-height-remark
- https://www.coursera.org/learn/data-structures/lecture/0g1dl/basic-operations
- https://www.coursera.org/learn/data-structures/lecture/gl5Ni/complete-binary-trees
- https://www.coursera.org/learn/data-structures/lecture/HxQo9/pseudocode
- see: https://class.coursera.org/algs4partI-010/lecture
- https://class.coursera.org/algs4partI-010/lecture/39
Priority Queue
- https://en.wikipedia.org/wiki/Priority_queue
-----------------------------------------------------
More Knowledge
-----------------------------------------------------
- Binary search:
- https://www.youtube.com/watch?v=D5SrAga1pno
- detail: https://www.topcoder.com/community/data-science/data-science-tutorials/binary-search/
- Bit operations
- Get a really good understanding of manipulating bits with: &, |, ^, ~, >>, <<
- https://en.wikipedia.org/wiki/Bit_manipulation
- http://graphics.stanford.edu/~seander/bithacks.html
- http://bits.stephan-brumme.com/
- http://bits.stephan-brumme.com/interactive.html
- count "on" bits
- https://youtu.be/Hzuzo9NJrlc
- https://graphics.stanford.edu/~seander/bithacks.html#CountBitsSetKernighan
- http://stackoverflow.com/questions/109023/how-to-count-the-number-of-set-bits-in-a-32-bit-integer
- round to next power of 2:
- http://bits.stephan-brumme.com/roundUpToNextPowerOfTwo.html
- max run of on/off bits
- swap values:
- http://bits.stephan-brumme.com/swap.html
- bit shifting
- https://www.youtube.com/watch?v=Ix9U1qR3c3Q
- absolute value:
- http://bits.stephan-brumme.com/absInteger.html
* - Parity & Hamming Code:
Parity:
https://www.youtube.com/watch?v=DdMcAUlxh1M
@ -302,87 +317,153 @@ Priority Queue
https://www.youtube.com/watch?v=JAMLuxdHH8o
Error Checking:
https://www.youtube.com/watch?v=wbH2VxzmoZk
Bit operations
- http://graphics.stanford.edu/~seander/bithacks.html
- count on bits
- https://youtu.be/Hzuzo9NJrlc
- max run of on/off bits
- bit shifting
Binary search
Sorting
- stability in sorting algorithms:
- http://stackoverflow.com/questions/1517793/stability-in-sorting-algorithms
- http://www.geeksforgeeks.org/stability-in-sorting-algorithms/
- Which algorithms can be used on linked lists? Which on arrays? Which on both? Is Quicksort stable?
- Implement & know best case/worst case, average complexity of each:
- mergesort
- quicksort
- insertion sort
- selection sort
- no bubble sort - it's terrible at O(n^2)
Caches
- LRU cache
Binary trees:
- https://www.coursera.org/learn/data-structures/lecture/GRV2q/binary-trees
Binary Heap:
Min Heap / Max Heap
Trees
-----------------------------------------------------
Trees
-----------------------------------------------------
Notes:
- https://www.coursera.org/learn/data-structures-optimizing-performance/lecture/ovovP/core-trees
- see: https://class.coursera.org/algs4partI-010/lecture
- https://class.coursera.org/algs4partI-010/lecture
- basic tree construction
- traversal
- manipulation algorithms
- Binary search trees: BSTs
- https://www.coursera.org/learn/data-structures/lecture/E7cXP/introduction
- applications:
- https://class.coursera.org/algs4partI-010/lecture/57
- n-ary trees
- trie-trees
- at least one type of balanced binary tree (and know how it's implemented):
- red/black tree
- https://class.coursera.org/algs4partI-010/lecture/50
- splay trees
- https://www.coursera.org/learn/data-structures/lecture/O9nZ6/splay-trees
- AVL trees
- https://www.coursera.org/learn/data-structures/lecture/Qq5E0/avl-trees
- https://www.coursera.org/learn/data-structures/lecture/PKEBC/avl-tree-implementation
- https://www.coursera.org/learn/data-structures/lecture/22BgE/split-and-merge
- 2-3 Search Trees
- https://class.coursera.org/algs4partI-010/lecture/49
- B-Trees:
- https://class.coursera.org/algs4partI-010/lecture/51
- BFS (breadth-first search)
- DFS (depth-first search)
- know the difference between
- inorder
- postorder
- preorder
Graphs:
- Binary trees:
- https://www.coursera.org/learn/data-structures/lecture/GRV2q/binary-trees
- Binary search trees: BSTs
- https://www.coursera.org/learn/data-structures/lecture/E7cXP/introduction
- https://www.youtube.com/watch?v=pYT9F8_LFTM
- applications:
- https://class.coursera.org/algs4partI-010/lecture/57
- N-ary trees
- https://en.wikipedia.org/wiki/K-ary_tree
- Tries
- https://www.coursera.org/learn/data-structures-optimizing-performance/lecture/08Xyf/core-introduction-to-tries
- https://www.coursera.org/learn/data-structures-optimizing-performance/lecture/PvlZW/core-performance-of-tries
- https://www.coursera.org/learn/data-structures-optimizing-performance/lecture/DFvd3/core-implementing-a-trie
- Heap (data structure):
- https://en.wikipedia.org/wiki/Heap_(data_structure)
- https://www.coursera.org/learn/data-structures/lecture/2OpTs/introduction
- https://www.coursera.org/learn/data-structures/lecture/z3l9N/naive-implementations
- https://www.coursera.org/learn/data-structures/lecture/GRV2q/binary-trees
- https://www.coursera.org/learn/data-structures/supplement/S5xxz/tree-height-remark
- https://www.coursera.org/learn/data-structures/lecture/0g1dl/basic-operations
- https://www.coursera.org/learn/data-structures/lecture/gl5Ni/complete-binary-trees
- https://www.coursera.org/learn/data-structures/lecture/HxQo9/pseudocode
- see: https://class.coursera.org/algs4partI-010/lecture
- https://class.coursera.org/algs4partI-010/lecture/39
- Binary Heap:
Min Heap / Max Heap
- Disjoint Sets:
- https://www.coursera.org/learn/data-structures/lecture/JssSY/overview
- https://www.coursera.org/learn/data-structures/lecture/EM5D0/naive-implementations
- https://www.coursera.org/learn/data-structures/lecture/Mxu0w/trees
- https://www.coursera.org/learn/data-structures/lecture/qb4c2/union-by-rank
- https://www.coursera.org/learn/data-structures/lecture/Q9CVI/path-compression
- https://www.coursera.org/learn/data-structures/lecture/GQQLN/analysis-optional
- Priority Queue
- https://en.wikipedia.org/wiki/Priority_queue
Know least one type of balanced binary tree (and know how it's implemented):
- red/black tree
- https://class.coursera.org/algs4partI-010/lecture/50
- splay trees
- https://www.coursera.org/learn/data-structures/lecture/O9nZ6/splay-trees
- AVL trees
- https://www.coursera.org/learn/data-structures/lecture/Qq5E0/avl-trees
- https://www.coursera.org/learn/data-structures/lecture/PKEBC/avl-tree-implementation
- https://www.coursera.org/learn/data-structures/lecture/22BgE/split-and-merge
- 2-3 Search Trees
- https://class.coursera.org/algs4partI-010/lecture/49
- B-Trees:
- https://class.coursera.org/algs4partI-010/lecture/51
-----------------------------------------------------
Graphs
-----------------------------------------------------
Notes:
There are three basic ways to represent a graph in memory:
- objects and pointers
- matrix
- adjacency list
- familiarize yourself with each representation and its pros & cons
- BFS and DFS - know their computational complexity, their tradeoffs, and how to implement them in real code
- If you get a chance, try to study up on fancier algorithms:
Familiarize yourself with each representation and its pros & cons
BFS and DFS - know their computational complexity, their tradeoffs, and how to implement them in real code
If you get a chance, try to study up on fancier algorithms:
- Dijkstra's algorithm
- https://en.wikipedia.org/wiki/Dijkstra%27s_algorithm
- A*
- https://en.wikipedia.org/wiki/A*_search_algorithm
- when asked a question, look for a graph-based solution first, then move on if none.
Other data structures:
- You should study up on as many other data structures and algorithms as possible
- You should especially know about the most famous classes of NP-complete problems, such as traveling salesman
and the knapsack problem, and be able to recognize them when an interviewer asks you them in disguise.
When asked a question, look for a graph-based solution first, then move on if none.
Implement:
Dijkstra's algorithm
A*
You'll get more graph practice in Skiena's book (see Books section below) and the interview books
-----------------------------------------------------
Sorting
-----------------------------------------------------
Notes:
- Implement & know best case/worst case, average complexity of each:
- no bubble sort - it's terrible - O(n^2)
- stability in sorting algorithms:
- http://stackoverflow.com/questions/1517793/stability-in-sorting-algorithms
- http://www.geeksforgeeks.org/stability-in-sorting-algorithms/
- Which algorithms can be used on linked lists? Which on arrays? Which on both? Is Quicksort stable?
Implement:
Mergesort
Quicksort
Insertion Sort
Selection Sort
-----------------------------------------------------
More Knowledge
-----------------------------------------------------
Caches
- LRU cache
NP and NP Complete
- Know about the most famous classes of NP-complete problems, such as traveling salesman and the knapsack problem,
and be able to recognize them when an interviewer asks you them in disguise.
- Know what NP-complete means.
Recursion
- when it is appropriate to use it
open-ended problems
- manipulate strings
- manipulate patterns
Combinatorics (n choose k)
Probability
Dynamic Programming
Scheduling
Weighted random sampling
Implement system routines
Design patterns:
- description:
- https://www.lynda.com/Developer-Programming-Foundations-tutorials/Foundations-Programming-Design-Patterns/135365-2.html
@ -393,9 +474,7 @@ Design patterns:
- decorator
- visitor
- factory
Combinatorics (n choose k)
Probability
Dynamic Programming
Operating Systems (25 videos):
- https://www.youtube.com/watch?v=-KWd_eQYLwY&index=2&list=PL-XXv-cvA_iBDyz-ba4yDskqMDY6A1w_c
Covers:
@ -420,9 +499,13 @@ Operating Systems (25 videos):
- threads in C++:
https://www.youtube.com/playlist?list=PL5jc9xFGsL8E12so1wlMS0r0hTQoJL74M
- stopped here: https://www.youtube.com/watch?v=_N0B5ua7oN8&list=PL5jc9xFGsL8E12so1wlMS0r0hTQoJL74M&index=4
Distill large data sets to single values
Transform one data set to another
Handling obscenely large amounts of data
Data handling:
- see scalability options below
Distill large data sets to single values
Transform one data set to another
Handling obscenely large amounts of data
System design:
- features sets
- interfaces
@ -430,8 +513,9 @@ System design:
- designing a system under certain constraints
- simplicity and robustness
- tradeoffs
Performance analysis and optimization
Familiarize yourself with unix-based souped-up code editor: emacs & vi(m)
- performance analysis and optimization
Familiarize yourself with a unix-based code editor: emacs & vi(m)
vi(m):
- https://www.youtube.com/watch?v=5givLEMcINQ&index=1&list=PL13bz4SHGmRxlZVmWQ9DvXo1fEg4UdGkr
- set of 4:
@ -486,6 +570,14 @@ Machine Learning:
Parallel Programming:
- https://www.coursera.org/learn/parprog1/home/week/1
String search algorithm:
Knuth-Morris-Pratt (KMP):
- https://en.wikipedia.org/wiki/Knuth%E2%80%93Morris%E2%80%93Pratt_algorithm
- https://www.youtube.com/watch?v=2ogqPWJSftE
Boyer–Moore string search algorithm
- https://en.wikipedia.org/wiki/Boyer%E2%80%93Moore_string_search_algorithm
- https://www.youtube.com/watch?v=xYBM0_dChRE
------------------------
Be thinking of for when the interview comes:
@ -513,7 +605,8 @@ Have questions for the interviewer.
Some of mine (I already may know answer to but want their opinion or team perspective):
- How large is your team?
- What is your dev cycle look like? Do you do sprints/agile?
- What is your dev cycle look like? Do you do waterfall/sprints/agile?
- Are rushes to deadlines common? Or is there flexibility?
- How are decisions made in your team?
- How many meetings do you have per week?
- Do you feel your work environment helps you concentrate?
@ -528,7 +621,7 @@ Some of mine (I already may know answer to but want their opinion or team perspe
Mentioned in Coaching:
The Algorithm Design Manual
The Algorithm Design Manual (Skiena)
- Book (can rent on kindle): http://www.amazon.com/Algorithm-Design-Manual-Steven-Skiena/dp/1849967202
- Answers: http://www.algorithm.cs.sunysb.edu/algowiki/index.php/The_Algorithms_Design_Manual_(Second_Edition)
@ -553,11 +646,12 @@ Additional (not suggested by Google but I added):
* - C++ Primer Plus, 6th Edition
Introduction to Algorithms
- https://www.amazon.com/Introduction-Algorithms-3rd-MIT-Press/dp/0262033844
Programming Pearls:
- http://www.amazon.com/Programming-Pearls-2nd-Jon-Bentley/dp/0201657880
If you see people reference "The Google Resume", it was replaced by "Cracking the Coding Interview".
If you see people reference "The Google Resume", it was a book replaced by "Cracking the Coding Interview".
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@ -572,14 +666,6 @@ Additional (not suggested by Google but I added):
##
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String search algorithm:
Knuth-Morris-Pratt (KMP):
- https://en.wikipedia.org/wiki/Knuth%E2%80%93Morris%E2%80%93Pratt_algorithm
- https://www.youtube.com/watch?v=2ogqPWJSftE
Boyer–Moore string search algorithm
- https://en.wikipedia.org/wiki/Boyer%E2%80%93Moore_string_search_algorithm
- https://www.youtube.com/watch?v=xYBM0_dChRE
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## Videos:
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