Added stack implementation using linked list in C

[Srisilpa]

Implemented Stack Data Structure using a Linked List in C.
This program supports the following operations:

push() → Insert element at the top

pop() → Remove the top element

peek() → Display top element

display() → Print all elements in the stack

• Highlights:

Uses dynamic memory allocation (no fixed size)

Handles overflow and underflow gracefully

• Time Complexity:

Push → O(1)

Pop → O(1)

Peek → O(1)

Display → O(n)

• File Added

stack_using_linkedlist.c

• Language

C Programming