In this problem, we have to return the kth largest element in an unsorted array. Note that the array can have duplicates. So, we have to find the Kth largest element in the sorted order, not the distinct Kth largest element. Example A = {4 , 2 , 5 , 3 …
Problem statement In the problem “Kth Missing Positive Number” we are given an array arr, which is sorted in strictly increasing order and a number k. Our task is to find out the Kth positive missing number in the array. Example arr = [1,2,3,4], k = 2 6 Explanation: As …
Problem Statement In this problem we have to do XOR Operation in an Array of size n in which each element is equal to (start + 2*i) where i is the index of the element (0-indexed) and value of start is given. We have to return the bitwise XOR of …
Problem Statement In ” Three Consecutive Odds ” problem we have been given an array and we have to check if there are three consecutive odd numbers in the array present or not. If it is present then we have to return true or else we will return false. Example …
Problem Statement In this problem we are given a number and we have to check whether it is an ugly number or not. Given that ugly numbers are positive numbers whose prime factors only include 2, 3, 5. Also 1 is typically treated as an ugly number. Example 6 true …
Problem Statement In Max Consecutive Ones problem a binary array is given. We have to find the maximum number of consecutive ones present in the given array. The input array will only contain 0 and 1. Example [1,1,0,1,1,1] 3 Explanation: The first two digits or the last three digits are …
Problem Statement In this problem there are houses in a street and House robber has to rob these houses. But the problem is that he can’t rob more than one house successively i.e which are adjacent to each other. Given a list of non-negative integers representing the amount of money …
Problem Statement The problem is to check whether a number is happy number or not. A number is said to be happy number if replacing the number by the sum of the squares of its digits, and repeating the process makes the number equal to 1. if it does not …
Problem statement In the problem ” Sort Array By Parity II,” we are given a parity array where all the elements are positive integers. The array contains an even number of elements. The array contains an equal number of even and odd elements. Our task is to rearrange the elements …
This post is on Lemonade Change Leetcode Solution Problem statement In the problem ” Lemonade Change” there is a queue of customers. They want to buy lemonade from us which costs 5 rupees. The customers can give us 5 rupees, 10 rupees, or 20 rupees. We want to return the …