Software Developer

Design a data-structure SpecialStack that supports all the stack operations like push(), pop(), isEmpty(), isFull() and an additional operation getMin() which should return minimum element from the SpecialStack. Your task is to complete all the functions, using stack data-Structure.

->> Input:
Stack: 18 19 29 15 16

->> Output: 15
Explanation:
The minimum element of the stack is 15.

Create a stack data structure that allows operations such as push (adding an element), pop (removing the top element), top (retrieving the top element), and also provides a way to retrieve the minimum element in constant time.

Implement the following public functions :

1. push(data) :
This function should take one argument of type integer. It pushes the element into the stack and returns nothing.

2. pop() :
It pops the element from the top of the stack and returns nothing.

3. top() :
It returns the element being kept at the top of the stack.

4.  getMin() :
It returns the smallest element present in the stack.

Operations Performed on the Stack:

Query-1(Denoted by an integer 1): Pushes integer data to the stack. (push function)

Query-2(Denoted by an integer 2): Pops the data kept at the top of the stack. (pop function)

Query-3(Denoted by an integer 3): Fetches and returns the data being kept at the top of the stack. (top function)

Query-4(Denoted by an integer 4): Returns the smallest element present in the stack. (getMin() function)

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