Material
Data Structures
Online C Compiler
Videos
Reference Links
https://www.studytonight.com/data-structures/introduction-to-data-structures
https://www.tutorialspoint.com/data_structures_algorithms/index.htm
https://www.tutorialspoint.com/comparison-of-search-trees-in-data-structure
https://www.coursera.org/lecture/data-structures/avl-trees-Qq5E0
https://nptel.ac.in/courses/106/102/106102064/
http://faculty.cs.niu.edu/~freedman/340/340notes/340multi.htm