Merge pull request #7 from nandwalritik/resources

Add level 2 resources

Readme.md

@@ -1,13 +1,20 @@
 ## About
-
-#### This repository contains code for different data structures and algorithms implemented majorly in C and C++.
-#### From my experience I am sharing a learning path which a newbie could follow to master Datastructures and Algorithms.
-#### It's not a one day task but you will have to practice daily to develop a good grasp at DSA.
-
+* This repository contains code for different data structures and algorithms implemented majorly in C and C++.
+* From my experience I am sharing a learning path which a newbie could follow to master Datastructures and Algorithms.
+* It's not a one day task but you will have to practice daily to develop a good grasp at DSA.
 
 ## Getting Started
 ### Level-1
 * Learn any one programming language. 
 * Learn basic concepts of oops, which will help you during the implementation part of DSA.
 * [W3Schools](https://www.w3schools.com/) is one of the best website from where you can learn step by step.
+* Learn some basics of algorithms like what is time and space complexity.
+
+### Level-2
+* Watch all the videos of [Mycodeschool](https://www.youtube.com/playlist?list=PL2_aWCzGMAwI3W_JlcBbtYTwiQSsOTa6P).
+* Try to implement side by side, and read some articles on [GFG](https://geeksforgeeks.org/) for the topics which you don't understand in single run. 
 
+### Level-3
+* For mastering trees watch Tushar Roy's [Trees](https://www.youtube.com/playlist?list=PLrmLmBdmIlpv_jNDXtJGYTPNQ2L1gdHxu) playlist, solve similar questions on [Leetcode](https://leetcode.com/).
+* For solving important interview questions on Datastructures, watch [Aditya Verma's](https://www.youtube.com/c/AdityaVermaTheProgrammingLord) stack,binary-search,recusrssion and heap playlist.
+* Learn Algorithms theory from [Abdul Bari Sir](https://www.youtube.com/playlist?list=PLDN4rrl48XKpZkf03iYFl-O29szjTrs_O).