Programming questions from different competitive coding platforms for Algorithms and Data Structures

I have been developing this repository for some time, I have been upgrading this repo with latest coding solutions and questions that I have been encountering in different tests, practice and also my own personal collection (Hackerearth + GeeksForGeeks)
The Coding questions from other platforms like hackerrank, interviewBit, Daily Coding Problem, Skillenza, Interviewing.io are also included here - directories are created separately for different data structures.The idea is to capture maximum number of problem models in this repository.
The questions for few problems are shared in the form of images (JPEGs/PNGs) and for few problems they are embedded in code itself in the form of multiline docstrings.
Daily Coding problem & Interviewing.io solutions are the recent addition.
For most of the questions along with optimal solutions, my non-optimal versions are also included, so feel free to improve this repo by contributing to it with your own stable and optimal codes by creating a pull request 😛 👍.

GeeksForGeeks, HackerEarth, Coding Tests and Several Other platforms - Data Structures, Algorithms, SQL, Programming