Linked List Introduction
A linked list is a linear data structure that consists of nodes, each containing a value and a reference to the next node in the list. The first node is…
Linked list find nth element from end
To find the nth node from the end of a linked list, you can use the two-pointer technique. Example implementation in Java: class ListNode { int val; ListNode next; ListNode(int…
Java Minimum Number of swaps required to sort an array
To find the minimum number of swaps required to make an array sorted, you can use the concept of selection sort. Here’s an example implementation in Java: public class MinimumSwaps…
