One of the member requested tutorials on combinatorics. Here's list of resources on the same:

Basics of combinatorics:

1. https://www.topcoder.com/community/competitive-programming/tutorials/basics-of-combinatorics/

2.Maths for competitive programming:

https://www.topcoder.com/community/competitive-programming/tutorials/mathematics-for-topcoders/

3. Advanced tutorial(dp+combinatorics) :
https://codeforces.com/blog/entry/54154

Where to find problems on combinatorics?

1. https://a2oj.com/category?ID=90
2. https://codeforces.com/problemset?tags=combinatorics
3. https://www.codechef.com/tags/problems/combinatorics

Happy coding(thecodingbot.com, t.me/computerprogrammingcodingbot)

Some books on discrete maths and combinatorics

Where to learn data science from?

Blogs: kdnuggets.com, machinelearningmastery.com, kaggleblogs, Data Science Central(https://www.datasciencecentral.com), analytics vidhya blog(https://www.analyticsvidhya.com/blog/), fastml(fastml.com,very advanced sometimes).

Books: Python machine learning, Introduction to statistical learning, Elements of Statistical learning(order according to the difficulty).

Practice: analytics vidhya, kaggle, crowdanalytix, hackerrank(sometimes the competitions are held), hackerearth(few data science competitions).

Youtubechannel: Data School, Sentdex, ML trainings.

MOOCs: How to win a kaggle competition(coursera)[RECOMMENDED], Machine Learning by andrew ng(coursera), deeplearning(specialization) on by deeplearning.ai(coursera).

Datasets: Kaggle Datasets(https://www.kaggle.com/datasets), https://lionbridge.ai/datasets/the-50-best-free-datasets-for-machine-learning/, UCI Machine Learning Repo(https://archive.ics.uci.edu/ml/index.php)

Beginner level competitions:

1. Classification - (titanic sinking)https://www.kaggle.com/c/titanic, (load price prediction) https://datahack.analyticsvidhya.com/contest/practice-problem-loan-prediction-iii/
2. Regression - https://www.kaggle.com/c/house-prices-advanced-regression-techniques


Enjoy
(thecodingbot.com, t.me/computerprogrammingcodingbot)

Python’s set – x in s

Overview Set in mathematics is a well-defined collection of distinct objects which are often called as elements or the members. In python, the sets have the following properties: Sets are unordered.Set elements are unique i.e duplicate elements are…

https://thecodingbot.com/pythons-set-x-in-s/

How to build a complete Ecommerce website using Django - https://www.youtube.com/watch?v=YZvRrldjf1Y

Very beginner friendly, no prerequisites.

Happy coding. Enjoy
(thecodingbot.com, t.me/computerprogrammingcodingbot)

How to backup your wordpress site for free

This video clearly demonstrate how one can easily create recuring backups for their wordpress site for free. Very high quality content, to the point, no prerequsites


https://youtu.be/AJI-ZMD7qWE

Why is O(c * N) same as O(N) in big-O analysis of analysis of an algorithm?

Very very important concept. Have a great read here -> https://stackoverflow.com/a/22188943/7355205

Practice time complexity analysis questions here for your next interview

Time complexity analysis cheatsheet: http://bigocheatsheet.com/

Proof: Why the number of digits in an integer N equals ?

Overview In this short but important tutorial, we will discuss why the number of digits in an integer N is equal to . This well-known formula is used many times to optimize the runtime of…

https://thecodingbot.com/proof-why-the-number-of-digits-in-an-integer-n-equals-latex-lfloor-log_10-n-rfloor-1-latex/

Very important concept

Best resource to learn about pointers

(Very Important)Difference between mutable and immutable objects in Python https://medium.com/@meghamohan/mutable-and-immutable-side-of-python-c2145cf72747

How to print to stderr in Python?

Overview print() is a built-in method in python which by default writes to the python’s stdout file object. However, we can redefine the print() function to redirect the output to stderr rather than stdout. print()…

https://thecodingbot.com/how-to-print-to-stderr-in-python/

Great tutorial on C++ templates

How to get the number of rows and columns in a two-dimensional array?

Overview In this tutorial, We will see how we can get the number of rows and columns in a two-dimensional array in c++. Given the array A[m][n], the rows are m and the columns are…

https://thecodingbot.com/how-to-get-the-number-of-rows-and-columns-in-a-two-dimensional-array/