Problem statement In the problem ” Day of the Year” we are given a string that contains a date in the format YYYY-MM-DD. Our task is to return the day number of that date. If the given date is 2020-01-05. This is 5th January 2020 which is the 5th day …
Problem Statement In Special Positions in a Binary Matrix problem a matrix of size n*m is given in which there are only two type of values 1s and 0s. A cell position is called special if value of that cell is 1 and values in all the cells in that …
Problem statement In the problem ” Water Bottles” we are given two values namely” numBottle” which will store the total number of full water bottles and “numExchange” which will store the total number of empty water bottles we can exchange at a time and get a full water bottle. After …
In the problem “Maximum Product of Two Elements in an Array”, our goal is to find two indices i and j in a given array of integers a, such that the product (a[i] – 1) * (a[j] – 1) is maximum. The array has at least 2 elements and all …
Problem statement In the problem ” Mean of Array After Removing Some Elements” we are given an array. All the elements of the array are positive integers. The size of the array is multiple of 20. Our task is to find the mean of the array excluding the smallest 5% …
The goal of this problem is to swap nodes of a given linked list in pairs, that is, swapping every two adjacent nodes. If we are allowed to swap just the value of the list nodes, the problem would be trivial. So, we are not allowed to modify the node …
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 …