This post is on Valid Perfect Square Leetcode Solution Problem statement In the problem “Valid Perfect Square” we are given a number “num” and we need to check if this number is a perfect square or not. We have to check this without using the built-in sqrt function. If the …
Suppose, you have an integer array and a number k. The problem statement asks to find out the smallest sub-array of range (l, r) inclusively, in such a way there are exactly k distinct numbers present in that smallest sub-array. Example Input: {1, 2, 2, 3, 4, 5, 5} k=3 …
We have given an array of integers and a given number called ‘sum’. The problem statement asks to find out the triplet that adds up to the given number ‘sum’. Example Input: arr[] = {3,5,7,5,6,1} sum=16 Output: (3, 7, 6), (5, 5, 6) Explanation: Triplet which equals to the given …
We have given an array of integers. An array contains 1’s and 0’s only. The problem statement asks to find out the length of the longest Sub-Array which having the quantity of 1’s digit is just one more than the count of 0’s in a sub-array. Example Input: arr[] = …
Suppose we have two integers array of same size n. Both of the arrays can contain common numbers as well. The problem statement asks to form the resultant array that contains the ‘n’ maximum values from both of the arrays. The first array should be prioritized (elements of the first …
The Round Robin scheduling is very much similar to FCFS. The only difference between RR and FCFS scheduling is, RR is preemptive scheduling whereas FCFS is non-preemptive scheduling. Every process is allocated to CPU in the ready queue for a single time slice. Here, a ready queue is similar to …
In the problem “Find the smallest range containing elements from k lists” we have given K lists which are sorted and of the same size N. It asks to determine the smallest range that contains at least element(s) from each of the K lists. If there is more than one …
Problem Statement “Guess Number Higher or Lower II” states that we are going to play a game that is called Guess Game. The game says that I pick a number from 1 to n. Whenever you guess the number which I have not picked, I m going to say you …
“Rearrange an array such that arr[i]=i” problem states that you are given an array of integers ranging from 0 to n-1. Since all the elements may not be present in the array, then in place of them -1 is there. The problem statement asks to rearrange the array in such …
Problem Statement Suppose you have an integer array. The problem “Segregate 0s and 1s in an array” asks to segregate the array in two parts, in 0s and in 1s. The 0’s should be on the left side of the array and 1’s on the right side of the array. …