Implement more Data Structures and Algorithms

[SparshBohra]

Description

Implement more Data Structures and Algorithms in C and add them to the dsa.h header file. Currently, the file only contains commonly used sorting and searching algorithms and basic data structures.

Tasks

• Implement the DS/A in C (Please comment your code)
• Add it to the dsa.h file
• Add the DS/A name to the index at the top
• Help with documentation is always welcomed