Search in Rotated Sorted Array Leetcode Solution

Consider a sorted array but one index was picked and the array was rotated at that point. Now, once the array has been rotated you are required to find a particular target element and return its index. In case, the element is not present, return -1. The problem is generally …

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Count of Triplets With Sum Less than Given Value

Problem Statement   We have given an array containing N number of elements. In the given array, Count the number of triplets with a sum less than the given value. Example   Input a[] = {1, 2, 3, 4, 5, 6, 7, 8} Sum = 10 Output 7 Possible triplets are : …

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Find Triplet in Array With a Given Sum

Problem Statement   Given an array of integers, find the combination of three elements in the array whose sum is equal to a given value X. Here we will print the first combination that we get. If there is no such combination then print -1. Example   Input N=5, X=15 arr[] = …

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Smallest Positive Number Missing in an Unsorted Array

Problem Statement   In the given unsorted array find the smallest positive number missing in an unsorted array. A positive integer doesn’t include 0. We can modify the original array if needed. The array may contain positive and negative numbers. Example   a. Input array : [3, 4, -1, 0, -2, 2, 1, …

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