The Next Permutation problem (LeetCode #31) involves rearranging a sequence of numbers into its next lexicographical permutation. If the sequence is already the largest possible permutation, it should be rearranged into the smallest (sorted in ascending order). Below is a detailed breakdown of the approaches to solve this problem, from naive to optimal, with Java … Read more
If you’re a LeetCode enthusiast or just starting out, you might have encountered the problem Swap Nodes in Pairs (LeetCode 24). This is a classic problem that involves swapping adjacent nodes in a linked list. Understanding how to solve this problem is crucial for mastering linked list manipulation and performing well in coding interviews. In … Read more
In the previous article , we learnt about the searching algorithms and two types of searching algorithms. We learnt about Linear Search algorithm. In this article, we will learn about another important searching algorithm called Binary Search algorithm. About Binary Search Algorithm Binary search is an efficient algorithm designed to locate a specific value within … Read more
Introduction to Searching: The act of locating a particular element within a list is commonly referred to as searching. When the desired element is discovered within the list, the search operation is deemed successful, and the position of the element is returned. Conversely, if the search fails to locate the element, it is considered unsuccessful. … Read more