 ## Check if an array is formed by consecutive integers

Problem Given an unsorted array of numbers, check if the array consists of consecutive numbers o… ## Find triplet having maximum product in an array

Problem Find 3 numbers from the array such that their product is maximum. Sample Input [… ## Find the minimum index of a repeating element in an array

Problem Given an array of integers, find the first repeating element in it. We need to find the … ## Find a pair with a minimum absolute difference in an array

Problem Given an unsorted array, find the minimum difference between any pair in a given array a… ## Find two non-overlapping pairs having the same sum in an array

Problem Given an unsorted array of integers. The task is to find any two non-overlapping pairs w… ## Mountain Array

Problem Given an array of integers, check if it is a mountain array or not. An array is called a… ## Modular Exponentiation in Logarithmic Time

Problem Given three integers, a, b, and p. Compute the value of (ab)%p. Sample Input a =… ## Count subarrays with given XOR

Problem Given an array of integers, count the number of subarrays that have the XOR equal to &ls… ## Find K-th Smallest Element in BST

Problem Given a Binary Search Tree, find the k-th smallest element in the BST. Sample Input … ## Find all symmetric pairs in an array of pairs

Problem Given an array of pairs, find all symmetric pairs in it. Symmetric pairs are two pairs (… ## Find the closest pair from two arrays

Problem Given two sorted arrays and an integer X, find one number from each array such that the … ## Find the count of distinct elements in every subarray of size k

Problem Given an array of integers and a number k. Find the count of distinct elements in every …