Top 50 Problems on Matrix/Grid Data Structure asked in SDE Interviews Last Updated : 10 Jul, 2023 Improve Improve Like Article Like Save Share Report A Matrix/Grid is a two-dimensional array that consists of rows and columns. It is an arrangement of elements in horizontal or vertical lines of entries. Here is the collection of the Top 50 list of frequently asked interviews question on Matrix/Grid in the SDE Interviews. Problems in this Article are divided into three Levels so that readers can practice according to the difficulty level step by step. To learn more about Matrix, please refer to the Tutorial on Matrix/Grid. Given below are the most frequently asked interview questions on Matrix: Easy Level Problems on Matrix/Grid Data Structure Rotate Matrix Elements Sort the given matrix Turn an image by 90-degree Program to multiply two matrices Find maximum element of each row in a matrix Count all sorted rows in a matrix Common elements in all rows of a given matrix Print matrix in snake pattern Sort a Matrix in all way increasing order Find the row with maximum number of 1s Efficiently compute sums of diagonals of a matrix Find whether an array is subset of another array Boundary elements of a Matrix Check given matrix is magic square or not Medium Level Problems on Matrix/Grid Data Structure Search in a row-wise and column-wise sorted 2D array Find Peak Element in 2D matrix Matrix Median Rotate a matrix by 90 degree without using any extra space Rotate a Matrix by 180 degree Rotate the matrix right by K times Print a given matrix in spiral form Zigzag (or diagonal) traversal of Matrix Spiral Traversal of Matrix Search in a Row-wise and Column-wise Sorted Matrix Find the number of islands Boolean Matrix Question Count number of islands in a binary matrix Maximum sum rectangle in a 2D matrix Flood Fill Algorithm Count all possible paths from top left to bottom right of a m x n matrix Find the maximum sum path in a matrix Rotate a matrix by 90 degrees Minimum steps to reach target by a Knight Minimum cost to fill given weight in a bag Shortest path in a Binary Maze Hard Level Problems on Matrix/Grid Data Structure Maximum size rectangle binary sub-matrix with all 1s Find the largest rectangular area possible in a given histogram Find a specific pair in matrix Maximum size square sub-matrix with all 1s Find the largest rectangle of 1’s with swapping of columns allowed Maximum sum rectangular submatrix in a given matrix Minimum Initial Points to Reach Destination Count number of paths with at-most k turns A Boolean Matrix Question Matrix Chain Multiplication Maximum size rectangle binary sub-matrix with all 1s Construct Ancestor Matrix from a Given Binary Tree Print K’th element in spiral form of matrix Find size of the largest ‘+’ formed by all ones in a binary matrix Print maximum sum square sub-matrix of given size Validity of a given Tic-Tac-Toe board configuration Like Article Suggest improvement Next Top 50 Problems on Linked List Data Structure asked in SDE Interviews Share your thoughts in the comments Add Your Comment Please Login to comment...