Merge branch 'master' of https://github.com/jwasham/coding-interview-university
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							@@ -331,9 +331,9 @@ If you have a better recommendation for C++, please let me know. Looking for a c
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### Java
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- [ ] [Algorithms (Sedgewick and Wayne)](https://www.amazon.com/Algorithms-4th-Robert-Sedgewick/dp/032157351X/)
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    - videos with book content (and Sedgewick!):
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        - [Algorithms I](https://www.youtube.com/user/algorithmscourses/playlists?view=50&sort=dd&shelf_id=2)
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        - [Algorithms II](https://www.youtube.com/user/algorithmscourses/playlists?shelf_id=3&view=50&sort=dd)
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    - videos with book content (and Sedgewick!) on coursera:
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        - [Algorithms I](https://www.coursera.org/learn/algorithms-part1)
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        - [Algorithms II](https://www.coursera.org/learn/algorithms-part2)
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OR:
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@@ -487,6 +487,7 @@ Write code on a whiteboard or paper, not a computer. Test with some sample input
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        - [answers to questions](https://github.com/lekkas/c-algorithms)
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- [ ] **How computers process a program:**
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    - [ ] [How CPU executes a program](https://www.youtube.com/watch?v=XM4lGflQFvA)
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    - [ ] [How computers calculate - ALU (video)](https://youtu.be/1I5ZMmrOfnA)
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    - [ ] [Registers and RAM (video)](https://youtu.be/fpnE6UAfbtU)
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    - [ ] [The Central Processing Unit (CPU) (video)](https://youtu.be/FZGugFqdr60)
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@@ -508,8 +509,8 @@ Write code on a whiteboard or paper, not a computer. Test with some sample input
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- [ ] [Amortized Analysis (video)](https://www.youtube.com/watch?v=B3SpQZaAZP4&index=10&list=PL1BaGV1cIH4UhkL8a9bJGG356covJ76qN)
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- [ ] [Illustrating "Big O" (video)](https://class.coursera.org/algorithmicthink1-004/lecture/63)
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- [ ] TopCoder (includes recurrence relations and master theorem):
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    - [Computational Complexity: Section 1](https://www.topcoder.com/community/data-science/data-science-tutorials/computational-complexity-section-1/)
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    - [Computational Complexity: Section 2](https://www.topcoder.com/community/data-science/data-science-tutorials/computational-complexity-section-2/)
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    - [Computational Complexity: Section 1](https://www.topcoder.com/community/competitive-programming/tutorials/computational-complexity-section-1/)
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    - [Computational Complexity: Section 2](https://www.topcoder.com/community/competitive-programming/tutorials/computational-complexity-section-2/)
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- [ ] [Cheat sheet](http://bigocheatsheet.com/)
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@@ -596,7 +597,7 @@ Write code on a whiteboard or paper, not a computer. Test with some sample input
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- ### Queue
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    - [ ] [Using Queues First-In First-Out(video)](https://www.lynda.com/Developer-Programming-Foundations-tutorials/Using-queues-first-first-out/149042/177122-4.html)
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    - [ ] [Queue (video)](https://www.coursera.org/learn/data-structures/lecture/EShpq/queue)
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    - [ ] [Queue (video)](https://www.coursera.org/lecture/data-structures/queues-EShpq)
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    - [ ] [Circular buffer/FIFO](https://en.wikipedia.org/wiki/Circular_buffer)
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    - [ ] [Priority Queues (video)](https://www.lynda.com/Developer-Programming-Foundations-tutorials/Priority-queues-deques/149042/177123-4.html)
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    - [ ] Implement using linked-list, with tail pointer:
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@@ -648,7 +649,7 @@ Write code on a whiteboard or paper, not a computer. Test with some sample input
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- ### Binary search
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    - [ ] [Binary Search (video)](https://www.youtube.com/watch?v=D5SrAga1pno)
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    - [ ] [Binary Search (video)](https://www.khanacademy.org/computing/computer-science/algorithms/binary-search/a/binary-search)
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    - [ ] [detail](https://www.topcoder.com/community/data-science/data-science-tutorials/binary-search/)
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    - [ ] [detail](https://www.topcoder.com/community/competitive-programming/tutorials/binary-search/)
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    - [ ] Implement:
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        - binary search (on sorted array of integers)
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        - binary search using recursion
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@@ -1147,7 +1148,7 @@ You'll get more graph practice in Skiena's book (see Books section below) and th
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        - [ ] [Performance Of Tries (video)](https://www.coursera.org/learn/data-structures-optimizing-performance/lecture/PvlZW/core-performance-of-tries)
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        - [ ] [Implementing A Trie (video)](https://www.coursera.org/learn/data-structures-optimizing-performance/lecture/DFvd3/core-implementing-a-trie)
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    - [ ] [The Trie: A Neglected Data Structure](https://www.toptal.com/java/the-trie-a-neglected-data-structure)
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    - [ ] [TopCoder - Using Tries](https://www.topcoder.com/community/data-science/data-science-tutorials/using-tries/)
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    - [ ] [TopCoder - Using Tries](https://www.topcoder.com/community/competitive-programming/tutorials/using-tries/)
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    - [ ] [Stanford Lecture (real world use case) (video)](https://www.youtube.com/watch?v=TJ8SkcUSdbU)
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    - [ ] [MIT, Advanced Data Structures, Strings (can get pretty obscure about halfway through)](https://www.youtube.com/watch?v=NinWEPPrkDQ&index=16&list=PLUl4u3cNGP61hsJNdULdudlRL493b-XZf)
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@@ -1234,7 +1235,7 @@ You'll get more graph practice in Skiena's book (see Books section below) and th
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    - [ ] [Introduction to Architecting Systems for Scale](http://lethain.com/introduction-to-architecting-systems-for-scale/)
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    - [ ] [Scaling mobile games to a global audience using App Engine and Cloud Datastore (video)](https://www.youtube.com/watch?v=9nWyWwY2Onc)
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    - [ ] [How Google Does Planet-Scale Engineering for Planet-Scale Infra (video)](https://www.youtube.com/watch?v=H4vMcD7zKM0)
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    - [ ] [The Importance of Algorithms](https://www.topcoder.com/community/data-science/data-science-tutorials/the-importance-of-algorithms/)
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    - [ ] [The Importance of Algorithms](https://www.topcoder.com/community/competitive-programming/tutorials/the-importance-of-algorithms/)
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    - [ ] [Sharding](http://highscalability.com/blog/2009/8/6/an-unorthodox-approach-to-database-design-the-coming-of-the.html)
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    - [ ] [Scale at Facebook (2009)](https://www.infoq.com/presentations/Scale-at-Facebook)
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    - [ ] [Scale at Facebook (2012), "Building for a Billion Users" (video)](https://www.youtube.com/watch?v=oodS71YtkGU)
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@@ -1351,8 +1352,8 @@ I added the pen in the photo for scale. If you use a pen, you'll wish you could
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Supplemental:
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- [Mathematics for Topcoders](https://www.topcoder.com/community/data-science/data-science-tutorials/mathematics-for-topcoders/)
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- [Dynamic Programming – From Novice to Advanced](https://www.topcoder.com/community/data-science/data-science-tutorials/dynamic-programming-from-novice-to-advanced/)
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- [Mathematics for Topcoders](https://www.topcoder.com/community/competitive-programming/tutorials/mathematics-for-topcoders/)
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- [Dynamic Programming – From Novice to Advanced](https://www.topcoder.com/community/competitive-programming/tutorials/dynamic-programming-from-novice-to-advanced/)
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- [MIT Interview Materials](https://web.archive.org/web/20160906124824/http://courses.csail.mit.edu/iap/interview/materials.php)
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- [Exercises for getting better at a given language](http://exercism.io/languages)
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@@ -1370,8 +1371,8 @@ See [Book List above](#book-list)
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Once you've learned your brains out, put those brains to work.
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Take coding challenges every day, as many as you can.
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- [ ] [How to Find a Solution](https://www.topcoder.com/community/data-science/data-science-tutorials/how-to-find-a-solution/)
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- [ ] [How to Dissect a Topcoder Problem Statement](https://www.topcoder.com/community/data-science/data-science-tutorials/how-to-dissect-a-topcoder-problem-statement/)
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- [ ] [How to Find a Solution](https://www.topcoder.com/community/competitive-programming/tutorials/how-to-find-a-solution/)
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- [ ] [How to Dissect a Topcoder Problem Statement](https://www.topcoder.com/community/competitive-programming/tutorials/how-to-dissect-a-topcoder-problem-statement/)
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Coding Interview Question Videos:
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- [IDeserve (88 videos)](https://www.youtube.com/watch?v=NBcqBddFbZw&list=PLamzFoFxwoNjPfxzaWqs7cZGsPYy0x_gI)
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@@ -1389,6 +1390,7 @@ Challenge sites:
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- [Geeks for Geeks](http://www.geeksforgeeks.org/)
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- [InterviewBit](https://www.interviewbit.com/invite/icjf)
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- [Sphere Online Judge (spoj)](http://www.spoj.com/)
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- [Codechef](https://www.codechef.com/)
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Challenge repos:
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- [Interactive Coding Interview Challenges in Python](https://github.com/donnemartin/interactive-coding-challenges)
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@@ -1693,7 +1695,7 @@ software engineer, and to be aware of certain technologies and algorithms, so yo
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        - [ ] [Aduni - Algorithms - Lecture 4 (link jumps to starting point) (video)](https://youtu.be/1W3x0f_RmUo?list=PLFDnELG9dpVxQCxuD-9BSy2E7BWY3t5Sm&t=3871)
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        - [ ] [Aduni - Algorithms - Lecture 5 (video)](https://www.youtube.com/watch?v=hm2GHwyKF1o&list=PLFDnELG9dpVxQCxuD-9BSy2E7BWY3t5Sm&index=5)
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        - [ ] [Red-Black Tree](https://en.wikipedia.org/wiki/Red%E2%80%93black_tree)
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        - [ ] [An Introduction To Binary Search And Red Black Tree](https://www.topcoder.com/community/data-science/data-science-tutorials/an-introduction-to-binary-search-and-red-black-trees/)
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        - [ ] [An Introduction To Binary Search And Red Black Tree](https://www.topcoder.com/community/competitive-programming/tutorials/an-introduction-to-binary-search-and-red-black-trees/)
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    - [ ] **2-3 search trees**
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        - In practice:
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