rjedwards105 / dailycodebase

2 month data structures and algorithmic scripting challenge starting from 20th December 2018 - Coding is Fun! 💯💯 Do it everyday!! Also, Do give us a ⭐ if you liked the repository

Daily Codes

Coding is Fun! Do it everyday 💯💯
Code Daily, add your solutions to the given problem, submit a PR (and don't forget to add your name in the contributors list)

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Want To Be a Contributor?

Read CONTRIBUTING.md for contribution guidelines.

Code Today!

Motivate yourself to code daily till 60 days, and see the magic! Coding will become your habit, and your skills will increase.

Day Number	Topic	Website Link	Difficulty
Day 1	The Fizz Buzz Problem	https://codetoexpress.github.io/dailycodebase/Day1	Beginner
Day 2	String Reversal + Palindrome	https://codetoexpress.github.io/dailycodebase/Day2/	Beginner
Day 3	The Hamming Distance Problem	https://codetoexpress.github.io/dailycodebase/Day3/	Beginner
Day 4	Num Vowels + Max Chars	https://codetoexpress.github.io/dailycodebase/Day4/	Intermediate
Day 5	Pattern Printing Problems	https://codetoexpress.github.io/dailycodebase/day5/	Intermediate
Day 6	Sentence Cap + Word Reversal + Anagram	https://codetoexpress.github.io/dailycodebase/day6/	Intermediate
Day 7	One Edit Away	https://codetoexpress.github.io/dailycodebase/day7/	Advanced
Day 8	Minimum Edit Distance	https://codetoexpress.github.io/dailycodebase/day8/	Intermediate
Day 9	Smallest Substring Problem	https://codetoexpress.github.io/dailycodebase/day9/	Advanced
Day 10	String Permutation Problem	https://codetoexpress.github.io/dailycodebase/day10/	Advanced
Day 11	Longest Common Substring	https://codetoexpress.github.io/dailycodebase/day11/	Advanced
Day 12	Substring Search Algorithms	https://codetoexpress.github.io/dailycodebase/day12/	Advanced
Day 13	Factorial and Fibonacci	https://codetoexpress.github.io/dailycodebase/day13/	Beginner
Day 14	Sum of digits and product of numbers	https://codetoexpress.github.io/dailycodebase/day14/	Beginner
Day 15	Pascal's Triangle	https://codetoexpress.github.io/dailycodebase/day15/	Intermediate
Day 16	Tower of Hanoi	https://codetoexpress.github.io/dailycodebase/day16/	Intermediate
Day 17	N Queens Problem	https://codetoexpress.github.io/dailycodebase/day17/	Advanced
Day 18	Frequency Count and Check Power N	https://codetoexpress.github.io/dailycodebase/day18/	Beginner
Day 19	Cartesian Product and Shuffle Algorithm	https://codetoexpress.github.io/dailycodebase/day19/	Intermediate
Day 20	Array Partition	https://codetoexpress.github.io/dailycodebase/day20/	Intermediate
Day 21	Pair Sum N and Max Subarray Sum	https://codetoexpress.github.io/dailycodebase/day21/	Intermediate
Day 22	Common Elements Search	https://codetoexpress.github.io/dailycodebase/day22/	Intermediate
Day 23	Combination Sum	https://codetoexpress.github.io/dailycodebase/day23/	Advanced
Day 24	Array Circular Rotation	https://codetoexpress.github.io/dailycodebase/day24/	Intermediate
Day 25	Rotate Square Tile	https://codetoexpress.github.io/dailycodebase/day25/	Intermediate
Day 26	Spiral Generation and Copy	https://codetoexpress.github.io/dailycodebase/day26/	Advanced
Day 27	The Minesweeper Problem	https://codetoexpress.github.io/dailycodebase/day27/	Advanced
Day 28	Linear Search	https://codetoexpress.github.io/dailycodebase/day28/	Beginner
Day 29	Binary Search	https://codetoexpress.github.io/dailycodebase/day29/	Intermediate
Day 30	Naive Search	https://codetoexpress.github.io/dailycodebase/day30/	Intermediate
Day 31	Bubble Sort	https://codetoexpress.github.io/dailycodebase/day31/	Beginner
Day 32	Selection Sort	https://codetoexpress.github.io/dailycodebase/day32/	Intermediate
Day 33	Insertion Sort	https://codetoexpress.github.io/dailycodebase/day33/	Beginner
Day 34	Merge Sort	https://codetoexpress.github.io/dailycodebase/day34/	Intermediate
Day 35	Quick Sort	https://codetoexpress.github.io/dailycodebase/day35/	Intermediate
Day 36	Radix Sort	https://codetoexpress.github.io/dailycodebase/day36/	Intermediate
Day 37	Applications of Searching and Sorting Algorithms	https://codetoexpress.github.io/dailycodebase/day37/	Misc
Day 38	Implement Stack Data Structure	https://codetoexpress.github.io/dailycodebase/day38/	Beginner
Day 39	Maximum Element and Reverse Stack	https://codetoexpress.github.io/dailycodebase/day39/	Intermediate
Day 40	Prefix, Infix, Postfix Conversion	https://codetoexpress.github.io/dailycodebase/day40/	Intermediate
Day 41	Implement Queue Data Structure	https://codetoexpress.github.io/dailycodebase/day41/	Beginner
Day 42	Alternate Queue Combination	https://codetoexpress.github.io/dailycodebase/day42/	Intermediate
Day 43	Queue Reversal	https://codetoexpress.github.io/dailycodebase/day43/	Intermediate
Day 44	Queue from Stacks	https://codetoexpress.github.io/dailycodebase/day44/	Intermediate
Day 45	Priority Queue	https://codetoexpress.github.io/dailycodebase/day45/	Advanced
Day 46	Double Ended Queue	https://codetoexpress.github.io/dailycodebase/day46/	Advanced
Day 47	Singly Linked List	https://codetoexpress.github.io/dailycodebase/day47/	Intermediate
Day 48	Doubly Linked List	https://codetoexpress.github.io/dailycodebase/day48/	Intermediate
Day 49	MiddleMost Node Search	https://codetoexpress.github.io/dailycodebase/day49/	Intermediate
Day 50	Nth From Last	https://codetoexpress.github.io/dailycodebase/day50/	Intermediate
Day 51	Circular List	https://codetoexpress.github.io/dailycodebase/day51/	Intermediate
Day 52	Sort and Reverse	https://codetoexpress.github.io/dailycodebase/day52/	Intermediate
Day 53	Implement a Tree	https://codetoexpress.github.io/dailycodebase/day53/	Advanced
Day 54	Breadth First Search	https://codetoexpress.github.io/dailycodebase/day54/	Advanced
Day 55	Depth First Search	https://codetoexpress.github.io/dailycodebase/day55/	Advanced
Day 56	Memoization	https://codetoexpress.github.io/dailycodebase/day56/	Advanced
Day 57	Cuckoo Hashing	https://codetoexpress.github.io/dailycodebase/day57/	Intermediate
Day 58	Binary Heap	https://codetoexpress.github.io/dailycodebase/day58/	Advanced
Day 59	Graphs: Implementation and Traversal	https://codetoexpress.github.io/dailycodebase/day59/	Advanced
Day 60	Shortest Path Problem	https://codetoexpress.github.io/dailycodebase/day60/	Advanced

More Problems

A real coder should not be satisfied by doing only one problem daily, rather he/she should keep coding as much as possible. So, here I (@MadhavBahl) am adding some more problems that you can practise 😃

Also, these problems have been taking form various sources, so ig you think you own any of the given problems, just send me an email at [email protected] and I will be more than happy to give proper credits 😊

Want to contribute?

The file structure is as follows

\DAILY CODE BASE
├───BONUS
│   ├───Algorithms
│   ├───Arrays
│   ├───Graphs
│   ├───LinkedLists
│   ├───Queues
│   ├───Recursion
│   ├───Stacks
│   ├───Strings
│   └───Trees

In this main README.md, there are links to the README of BONUS directory, and the README.md of sub topics In the README.md of BONUS directory, there is the list of all topics and under that there are all questions In the README.md of any topic directory, say Arrays there is a README which contains all questions of that topic along with the link to the README.md of the directory containing the question The README.md of directory containing the question must contain all the information about the question with some examples and the solution, and a little writeup about the algorithm used.

Before contributing any question, make sure that this structure is followed properly

NOTE

In case you just want to contribute a question and not code, there is no need to do so many things, just open an issue with the topic Problem Submission and the problem in the comments. I'll add it myself, and will give you proper credits 😃

Practise Problems 😁

1. Strings
2. Recursion
3. Array
4. Algorithms
5. Stacks
6. Queues
7. Linked Lists
8. Trees
9. Graphs
10. Misc Questions
11. Object Oriented Programming

Problems on Time and Space Complexity

EXTRA - Past Interview Questions

Here are some of the questions asked previously in major companies like Google, Amazon, Facebook, Microsoft etc.

To Be Added

Timeline

Disclaimer

I do not own the rights to the questions I will discuss in this Daily Codes initiative. The questions have been collected from various sources and I do not know who created all those questions. If you think you are the owner of any question or any code, send me an email at [email protected], I will be more than happy to give the appropriate credits.