Linked List To Stack Adapter
easy
1. You are required to complete the code of our LLToStackAdapter class. 2. As data members, you've a linkedlist available in the class. 3. Here is the list of functions that you are supposed to complete 3.1. push -> Should accept new data in LIFO manner 3.2. pop -> Should remove and return data in LIFO manner. If not available, print "Stack underflow" and return -1. 3.3. top -> Should return data in LIFO manner. If not available, print "Stack underflow" and return -1. 3.4. size -> Should return the number of elements available in the stack 4. Input and Output is managed for you. Note -> The intention is to use linked list functions to achieve the purpose of a stack. All the functions should work in constant time.
Constraints
None
Format
Input
Input is managed for you
Output
Output is managed for you
Example
Sample Input
push 10
push 20
push 5
push 8
push 2
push 4
push 11
top
size
pop
top
size
pop
top
size
pop
top
size
pop
top
size
pop
top
size
pop
top
size
pop
quit
Sample Output
11
7
11
4
6
4
2
5
2
8
4
8
5
3
5
20
2
20
10
1
10
Question Video