Suppose a man standing in the first cell or the top left corner of “a × b” matrix. A man can move only either up or down. That person wants to reach his destination and that destination for him is the last cell of the matrix or bottom right corner. …
The problem “Find maximum length Snake sequence” states that we are provided with a grid containing integers. The task is to find a snake sequence with the maximum length. A sequence having adjacent numbers in the grid with an absolute difference of 1, is known as a Snake sequence. Adjacent …
Problem statement In the problem “Count Negative Numbers in a Sorted Matrix” we are given a matrix of n rows and m columns. Elements are sorted in decreasing order both row-wise and column-wise. We need to find the total number of negative elements in the matrix. Example grid = [[8,3,2,-1],[4,2,1,-1],[3,1,-1,-2],[-1,-1,-2,-3]] …
Problem Statement The problem “Path with maximum average value” states that you are given a 2D array or a matrix of integers. Now consider you are standing at the top-left cell and need to reach the bottom right. For reaching the destination, you need to move along either in the …
Problem Statement The “Gold Mine problem” states that you are given a 2D grid having some non-negative coins placed in each cell of the given grid. Initially, the miner is standing at the first column but there is no restriction on the row. He can start in any row. The …
Problem Statement The problem “Minimum time required to rot all oranges” states that you are given a 2D array, every cell has one of the three possible values 0, 1 or 2. 0 means an empty cell. 1 means a fresh orange. 2 means a rotten orange. If a rotten …
Problem Statement The problem “Distance of nearest cell having 1 in a binary matrix” states that you are given a binary matrix(containing only 0s and 1s) with at least one 1. Find the distance of the nearest cell having 1 in the binary matrix for all the elements of the …
Problem Statement We are given a matrix of all the integers. The problem “Find distinct elements common to all rows of a matrix” asks to find out all the possible distinct elements but common in each of the rows present in a matrix. Example arr[]={ {11, 12, 3, 10}, {11, …
Problem Statement “Find pairs with given sum such that elements of pair are in different rows” problem states that you are given a matrix of integers and a value called “sum”. The problem statement asks to find out all the pairs in a matrix that sums up to a given …
Problem Statement “Common elements in all rows of a given matrix” problem state that, you are given a matrix of M*N. The problem statement asks to find out all the common elements in a given matrix in each row of the matrix in O(M*N) time. Example arr[]={{12, 1, 4, 5, …