Shashank Bairy R - OpenGenus IQ: Learn Algorithms, DL, System Design

Reverse alternate groups of K nodes in a Singly Linked List

We are given a pointer to the head of a singly Linked List and you have to write a function to reverse the elements of the given singly Linked List in alternate groups of K nodes. Once the operation is performed, pointer to the head of the Linked List must be returned from the function.

Software Engineering

size() in Stack C++ STL

We have explored size() function in Stack container in C++ STL in depth and explored its applications like checking the size of stack before pop operation and to get number of elements within the stack.