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https://github.com/gyuho/learn

learn
https://github.com/gyuho/learn

algorithm learning tutorial

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learn

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README 

        
I am an endless, active learner. I embrace challenges beyond my current abilities

to broaden my knowledge the most. I want to know a little about a lot,

and a lot about little: my favorites are C++ and Go.



**The best way to learn is to teach what you have learned to other people.**

I tried [YouTube channel](https://www.youtube.com/channel/UCWzSgIp_DYRQnEsJuH32Fww),

which was *hard to maintain*. So I decided to write my own textbook.

**I am still learning, and I may say things out of ignorance.**

Every post is *working in progress*, non-committal on a timeline.

The point is to review and improve over time.

This is a **_personal white-board_** where I *scribble* anything,

*organize* my code, learning experiences.



I appreciate any kind of *feedback* or *suggestions*.

Please email [email protected], [`issues`](https://github.com/gyuho/learn/issues),

or [`pull request`](https://github.com/gyuho/learn/pulls).






### Contents



- [Articles](#articles)

- [Unix, linux](#unix-linux)

- [Assembly](#assembly)

- [C](#c)

- [C++](#c-1)

- [Go](#go)

- [Python](#python)

- [Computer systems](#computer-systems)

- [Security systems](#security-systems)

- [Database systems](#database-systems)

- [Linguistics, natural language processing](#linguistics-natural-language-processing)

- [Mathematics, statistics](#mathematics-statistics)

- [Data structures and algorithms](#data-structures-and-algorithms)



[↑ top](#contents)






## Articles



- [etcd: distributed key-value store with grpc/http2](https://github.com/gyuho/learn/tree/master/doc/etcd_distributed_key_value_store_with_grpc_http2)



[↑ top](#contents)






## Unix, linux



Unix is essential in software development.



> This is the Unix philosophy: Write programs 

> that do one thing and do it well.

>

> *Doug McIlroy*



- [*linux setup*](https://github.com/gyuho/learn/tree/master/doc/linux_setup)



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## Assembly



> An assembly language (or assembler language) is a low-level programming

> language for a computer, or other programmable device, in which there is a

> very strong (generally one-to-one) correspondence between the language and

> the architecture's machine code instructions. Each assembly language is

> specific to a particular computer architecture, in contrast to most

> high-level programming languages, which are generally portable across

> multiple architectures, but require interpreting or compiling.

>

> [*Assembly language*](https://en.wikipedia.org/wiki/Assembly_language) *by Wikipedia*



- [*Assembly: introduction*](https://github.com/gyuho/learn/tree/master/doc/assembly_introduction)

- [*Assembly: arithmetics, if*](https://github.com/gyuho/learn/tree/master/doc/assembly_arithmetics_if)



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## C



C is a small language. And it helps you better understand

how system works in low-level. It's still being used everywhere.

I only wish I had more time to learn more about C.



- [*C: introduction, printf, scanf*](https://github.com/gyuho/learn/tree/master/doc/c_introduction_printf_scanf)

- [*C: type, variable, operator*](https://github.com/gyuho/learn/tree/master/doc/c_type_variable_operator)

- [*C: logic, loop*](https://github.com/gyuho/learn/tree/master/doc/c_logic_loop)

- [*C: array, pointer*](https://github.com/gyuho/learn/tree/master/doc/c_array_pointer)



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## C++



[**_Is learning C++ still worthwhile?_**](http://www.quora.com/Is-learning-C++-still-worthwhile)

Yes! I really want to learn more about C++:



> C++ is one of the most widely used programming languages

> in the world. Well-written C++ programs are fast and efficient.

> The language is more flexible than other languages because you

> can use it to create a wide range of apps—from fun and exciting

> games, to high-performance scientific software, to device drivers,

> embedded programs, and Windows client apps. For more than 20 years,

> C++ has been used to solve problems like these and many others.

>

> [*C/C++ Language and Standard Libraries*](https://msdn.microsoft.com/en-us/library/hh279654.aspx)

> *by Microsoft*



- [*C++: introduction*](https://github.com/gyuho/learn/tree/master/doc/cpp_introduction)

- [*C++: type, variable*](https://github.com/gyuho/learn/tree/master/doc/cpp_type_variable)

- [*C++: logic, loop*](https://github.com/gyuho/learn/tree/master/doc/cpp_logic_loop)

- [*C++: character, string, pointer, memory*](https://github.com/gyuho/learn/tree/master/doc/cpp_character_string_pointer_memory)

- [*C++: function*](https://github.com/gyuho/learn/tree/master/doc/cpp_function)

- [*C++: input, output*](https://github.com/gyuho/learn/tree/master/doc/cpp_input_output)

- [*C++: struct, union*](https://github.com/gyuho/learn/tree/master/doc/cpp_struct_union)

- [*C++: class, object*](https://github.com/gyuho/learn/tree/master/doc/cpp_class_object)

- [*C++: STL*](https://github.com/gyuho/learn/tree/master/doc/cpp_stl)

- [*C++: concurrency*](https://github.com/gyuho/learn/tree/master/doc/cpp_concurrency)



[↑ top](#contents)






## Go



I like [*Go*](https://golang.org/) for its simplicity: less design 

concerns to consider and less frameworks to learn. Plus I love its great communities.

Go is not perfect but really good at [*doing less, enabling more*](https://blog.golang.org/open-source).

It's a great introductory language between *Python* and *C++*.

**I want to know a lot about [C++](https://en.wikipedia.org/wiki/C%2B%2B)

and [Go](https://golang.org/) to build my foundation.**

This will help my transition to other languages or frameworks if needed.



- [*Go: introduction*](https://github.com/gyuho/learn/tree/master/doc/go_introduction)

- [*Go: type, variable*](https://github.com/gyuho/learn/tree/master/doc/go_type_variable)

- [*Go: logic, loop*](https://github.com/gyuho/learn/tree/master/doc/go_logic_loop)

- [*Go: character, string*](https://github.com/gyuho/learn/tree/master/doc/go_character_string)

- [*Go: strings, regex*](https://github.com/gyuho/learn/tree/master/doc/go_strings_regex)

- [*Go: sequence*](https://github.com/gyuho/learn/tree/master/doc/go_sequence)

- [**_Go: function, method, pointer, nil, map, slice_**](https://github.com/gyuho/learn/tree/master/doc/go_function_method_pointer_nil_map_slice)

- [*Go: struct*](https://github.com/gyuho/learn/tree/master/doc/go_struct)

- [**_Go: interface_**](https://github.com/gyuho/learn/tree/master/doc/go_interface)

- [**_Go: os, io_**](https://github.com/gyuho/learn/tree/master/doc/go_os_io)

- [**_Go: concurrency_**](https://github.com/gyuho/learn/tree/master/doc/go_concurrency)

- [*Go: sort, algorithm*](https://github.com/gyuho/learn/tree/master/doc/go_sort_algorithm)

- [*Go: random*](https://github.com/gyuho/learn/tree/master/doc/go_random)

- [*Go: time*](https://github.com/gyuho/learn/tree/master/doc/go_time)

- [*Go: archive, compress, encoding, decoding*](https://github.com/gyuho/learn/tree/master/doc/go_archive_compress_encoding_decoding)

- [*Go: hash, crypto, tls*](https://github.com/gyuho/learn/tree/master/doc/go_hash_crypto_tls)

- [**_Go: network_**](https://github.com/gyuho/learn/tree/master/doc/go_network)

- [*Go: sql*](https://github.com/gyuho/learn/tree/master/doc/go_sql)

- [*Go: boltdb*](https://github.com/gyuho/learn/tree/master/doc/go_boltdb)

- [*Go: key/value store, redis*](https://github.com/gyuho/learn/tree/master/doc/go_key_value_store_redis)

- [*Go: leveldb*](https://github.com/gyuho/learn/tree/master/doc/go_leveldb)



[↑ top](#contents)






## Python



Python is probably fast enough for many of what we need to do today.

And it's relatively easy to learn and use, with rich ecosystems in

data science, web frameworks, scripting, and many others.



- [*Python: introduction*](https://github.com/gyuho/learn/tree/master/doc/python_introduction)

- [*Python: type, variable*](https://github.com/gyuho/learn/tree/master/doc/python_type_variable)

- [*Python: logic, loop*](https://github.com/gyuho/learn/tree/master/doc/python_logic_loop)

- [*Python: character, string*](https://github.com/gyuho/learn/tree/master/doc/python_character_string)

- [*Python: sequence*](https://github.com/gyuho/learn/tree/master/doc/python_sequence)

- [*Python: dictionary*](https://github.com/gyuho/learn/tree/master/doc/python_dictionary)

- [*Python: function*](https://github.com/gyuho/learn/tree/master/doc/python_function)

- [*Python: pointer, memory*](https://github.com/gyuho/learn/tree/master/doc/python_pointer_memory)

- [*Python: argument, flag*](https://github.com/gyuho/learn/tree/master/doc/python_argument_flag)

- [*Python: os, io*](https://github.com/gyuho/learn/tree/master/doc/python_os_io)

- [*Python: sort*](https://github.com/gyuho/learn/tree/master/doc/python_sort)

- [*Python: random*](https://github.com/gyuho/learn/tree/master/doc/python_random)

- [*Python: time*](https://github.com/gyuho/learn/tree/master/doc/python_time)



[↑ top](#contents)






## Computer systems



It's very important to understand hardware and low-level programming.

I believe this will help a lot when you wonder why your high level program

is not working or not performing well. I will take as much time as 

I need―nothing like cramming 1,200 page computer systems book in 12 weeks.



- [*Overview of computer architecture*](https://github.com/gyuho/learn/tree/master/doc/overview_of_computer_architecture)

- [*What Every Programmer Should Know About Memory (2007)*](https://github.com/gyuho/learn/tree/master/doc/what_every_programmer_should_know_about_memory_2007)

- [*Virtual memory*](https://github.com/gyuho/learn/tree/master/doc/virtual_memory)

- [*Endianness*](https://github.com/gyuho/learn/tree/master/doc/endianness)

- [*Bitwise operation*](https://github.com/gyuho/learn/tree/master/doc/bitwise_operation)

- [*Segmentation fault, debug*](https://github.com/gyuho/learn/tree/master/doc/segmentation_fault_debug)



[↑ top](#contents)






## Security systems



[*MIT course*](http://css.csail.mit.edu/6.858/2014/schedule.html) explains that

*security achieves confidentiality, integrity, availability―policy*. And the goal is

to make sure there is no way for adversary within threat model to violate this policy.



- [*the matasano crypto challenges: set 1*](https://github.com/gyuho/learn/tree/master/doc/the_matasano_crypto_challenge_set_1)



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## Database systems



We are *generating* and *consuming* vast amounts of data in unprecendented

pace in human history. Database systems are the workhorses of our data 

analysis applications.



- [*mysql, postgresql, redshift*](https://github.com/gyuho/learn/tree/master/doc/mysql_postgresql_redshift)

- [*Python: sql*](https://github.com/gyuho/learn/tree/master/doc/python_sql)

- [*Python: redis*](https://github.com/gyuho/learn/tree/master/doc/python_redis)



[↑ top](#contents)






## Linguistics, natural language processing



I love linguistics, and its computational applications.



- [**_Go: string similarity_**](https://github.com/gyuho/learn/tree/master/doc/go_string_similarity)

- [*Go: segment*](https://github.com/gyuho/learn/tree/master/doc/go_segment)

- [*Go: spell check*](https://github.com/gyuho/learn/tree/master/doc/go_spell_check)



[↑ top](#contents)






## Mathematics, statistics



Most prominent solutions in Computer Science often come from mathematics. 

Arbitrary, unrelated things can fit together when you have mathematical

backgrounds. Statistics helps solve intractable problems through approximation 

algorithms, machine learning algorithms, etc.



- [*Go: bandit algorithms, adversarial bandits*](https://github.com/gyuho/learn/tree/master/doc/go_bandit_algorithms_adversarial_bandits)



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## Data structures and algorithms



- [*Computational complexity, NP*](https://github.com/gyuho/learn/tree/master/doc/computational_complexity_np)

- [*Recursion*](https://github.com/gyuho/learn/tree/master/doc/recursion)

- [*Linked list*](https://github.com/gyuho/learn/tree/master/doc/linked_list)

- [**_Binary search tree_**](https://github.com/gyuho/learn/tree/master/doc/binary_search_tree)

- [**_Go: heap, priority queue_**](https://github.com/gyuho/learn/tree/master/doc/go_heap_priority_queue)

- [**_Go: red black tree_**](https://github.com/gyuho/learn/tree/master/doc/go_red_black_tree)

- [**_Go: b-tree_**](https://github.com/gyuho/learn/tree/master/doc/go_b_tree)

- [**_Go: graph, interface_**](https://github.com/gyuho/learn/tree/master/doc/go_graph_interface)

- [**_Go: graph, traversal_**](https://github.com/gyuho/learn/tree/master/doc/go_graph_traversal)

- [**_Go: graph, shortest path_**](https://github.com/gyuho/learn/tree/master/doc/go_graph_shortest_path)

- [**_Go: graph, topological sort_**](https://github.com/gyuho/learn/tree/master/doc/go_graph_topological_sort)

- [**_Go: graph, minimum spanning tree_**](https://github.com/gyuho/learn/tree/master/doc/go_graph_minimum_spanning_tree)

- [**_Go: graph, strongly connected components_**](https://github.com/gyuho/learn/tree/master/doc/go_graph_strongly_connected_components)



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