Sorting

Given an array, find the indices of 2 elements, that have a sum equal to the given target value.

Bucket Sort is a sorting technique which puts limitations on the input set to get an improved performance. But, before we start learning about this, let us take a quick recap. This is essential so that you understand what are the use cases of Bucket Sort. The sorting techniques that work in an average time complexity of are: Selection Sort Insertion Sort Bubble Sort Some sorting techniques that have an average time complexity of are: Merge Sort Quick Sort Counting Sort is a special sorting technique that does not work…

You are given 2 sorted linked lists with a head pointer. Find a way to merge these 2 lists and return a single sorted list. Try to solve the problem without using any extra space. Example 1:List 1: 1 -> 2 -> 4List 2: 1 -> 3 -> 4Output: 1 -> 1 -> 2 -> 3 -> 4 -> 4 Problem statement To read about Linked Lists, refer to the post “What is a Linked List“? For our current problem statement, we are given two list heads or we refer…

Question: Given an unsorted array of integers and a number ‘k’. Return the kth largest element in the array.Input: arr = {3,2,1,5,6,4}, k = 2Output: 5 Given an unsorted array of integers, you need to determine the kth largest element. By taking a first glance at the problem we can be sure of one thing. If the array is already sorted in ascending order, we can simply return the element at arr[size – k]. This would give us the kth largest element. This is because the 2nd largest element is…