Java

       Merge Sort | For Beginners | Java Placement Course >> Merge sort is a popular sorting algorithm that utilizes a divide-and-conquer approach to sort elements in an array. The basic idea behind merge sort is to divide an unsorted array into two halves, recursively sort each half, and then merge the two sorted halves into a single sorted array. >>  Merge sort algorithm works by recursively dividing an array into two halves, sorting each half, and then merging them to obtain the sorted array. The basic steps of the merge sort algorithm are as follows: Divide the unsorted array into two halves, mid and left. Sort the left half recursively using merge sort algorithm. Sort the right half recursively using merge sort algorithm. Merge the two sorted halves to obtain the final sorted array. JAVA Implementation: // Merge sort public class MergeSort {     //time complexity=nlogn     public static void conquer ( int arr [], int ...