Kth element in Matrix
Given a matrix mat[][] of size n*n, where each row and column is sorted in non-decreasing order. Find the kth smallest element in the matrix. Examples: […]
909. Snakes and Ladders
You are given an n x n integer matrix board where the cells are labeled from 1 to n2 in a Boustrophedon style starting from the bottom left of the
Is Binary Tree Heap
You are given a binary tree, and the task is to determine whether it satisfies the properties of a max-heap.
2444. Count Subarrays With Fixed Bounds
You are given an integer array nums and two integers minK and maxK. A fixed-bound subarray of nums is a subarray that satisfies the following conditions: The minimum value in the
Majority Element
Given an array arr[]. Find the majority element in the array. If no majority element exists, return -1. Note: A majority element in an array
2845. Count of Interesting Subarrays
You are given a 0-indexed integer array nums, an integer modulo, and an integer k. Your task is to find the count of subarrays that
Unique Number III
Given an array of integers arr[] where, every element appears thrice except for one which occurs once.Find that element which occurs once. Examples: Input: arr[] = [1, 10, 1, 1]
2799. Count Complete Subarrays in an Array
You are given an array nums consisting of positive integers. We call a subarray of an array complete if the following condition is satisfied: The number
Unique Number II
Given an array arr[] containing 2*n + 2 positive numbers, out of which 2*n numbers exist in pairs whereas only two number occur exactly once and
1399. Count Largest Group
You are given an integer n. Each number from 1 to n is grouped according to the sum of its digits. Return the number of groups
Unique Number I
Given a unsorted array arr[] of positive integers having all the numbers occurring exactly twice, except for one number which will occur only once. Find the number
2338. Count the Number of Ideal Arrays
You are given two integers n and maxValue, which are used to describe an ideal array. A 0-indexed integer array arr of length n is considered ideal if the following conditions hold: Every arr[i] is