Collection of hundreds of Data Structure and Algorithms Problems and solutions from different sources, including leetcode.com, hackerrank.com, pramp, Cracking The Coding Interview, Glassdoor, and real-world interviews from top-tier tech companies including Amazon, Facebook, Google, LinkedIn, Twitter, Microsoft.

This is a collection of some of the popular problems in algorithm and in technical interviews. I did programming for my learning purpose and the code may have some references from other resources. I have tried my best to give credit to the resources I referred.