This is a simple C# console application that demonstrates two fundamental data structures: Stack (LIFO) and Queue (FIFO). The program provides an interactive menu system where users can perform basic operations on each data structure.
🔹 Stack (LIFO)
-Push → Insert element at the top
-Pop → Remove element from the top
-Peek → View the top element without removing it
-Display → Show all elements in the stack
🔹 Queue (FIFO)
-Enqueue → Insert element at the rear
-Dequeue → Remove element from the front
-Peek → View the front element without removing it
-Display → Show all elements in the queue