Leetcode grid problems In one operation, you can add x to or subtract x from any element in the grid. * -1 representing obstacles that we cannot walk over. Can you solve this real interview question? Maximize Area of Square Hole in Grid - You are given the two integers, n and m and two integer arrays, hBars and vBars. The robot can only move either Given a 2D array of characters grid of size m x n, you need to find if there exists any cycle consisting of the same value in grid. 2, find path after that. The main diagonal of a grid is the diagonal that starts at cell (1, 1) and ends at cell (n, n). To cyclically rotate a layer once, each element in the layer will take the place of the Can you solve this real interview question? Minimum Operations to Write the Letter Y on a Grid - You are given a 0-indexed n x n grid where n is odd, and grid[r][c] is 0, 1, or 2. You need to shift the grid k times. According to Wikipedia's article: "The Game of Life, also known simply as Life, is a cellular automaton devised by the British mathematician John Horton Conway in 1970. You are given a 0-indexed n x n integer matrix grid where grid[r][c] represents the height of the building located in the block at row r and column c. A fisher can start at any water cell (r, c) and can do the following operations any number of times: * Catch all the fish at cell (r, c You are given a 0-indexed 2D array grid of size 2 x n, where grid[r][c] represents the number of points at position (r, c) on the matrix. Can you solve this real interview question? Get Biggest Three Rhombus Sums in a Grid - You are given an m x n integer matrix grid . Since the answer can be very large, Can you solve this real interview question? Find the Safest Path in a Grid - You are given a 0-indexed 2D matrix grid of size n x n, where (r, c) represents: * A cell containing a thief if grid[r][c] = 1 * An empty cell if grid[r][c] = 0 You are initially positioned at cell (0, 0). Can you solve this real interview question? Detect Cycles in 2D Grid - Given a 2D array of characters grid of size m x n, you need to find if there exists any cycle consisting of the same value in grid. You should decide how many people you want to live in the grid Can you solve this real interview question? Unique Paths - There is a robot on an m x n grid. If it is not possible, return -1. e go from grid[i][j] to grid[i][j - 1]); 3 which means go to the lower cell. You may assume all four edges of the grid are all surrounded by water. The richest customer is the customer that has the Can you solve this real interview question? Maximum Difference Score in a Grid - You are given an m x n matrix grid consisting of positive integers. Given the two integers m and n, return the number of possible unique paths that You are given a 0-indexed 2D array grid of size 2 x n, where grid[r][c] represents the number of points at position (r, c) on the matrix. All cells must be painted. You have an m x n grid, and there are two types of people: introverts and extroverts. Note Can you solve this real interview question? Magic Squares In Grid - A 3 x 3 magic square is a 3 x 3 grid filled with distinct numbers from 1 to 9 such that each row, column, and both diagonals all have the same sum. You are also given two 2D integer arrays guards and walls where guards[i] = [rowi, Can you solve this real interview question? Count Unguarded Cells in the Grid - You are given two integers m and n representing a 0-indexed m x n grid. Below is an image of four valid Can you solve this real interview question? Minimum Moves to Spread Stones Over Grid - You are given a 0-indexed 2D integer matrix grid of size 3 * 3, representing the number of stones in each cell. There are introvertsCount introverts and extrovertsCount extroverts. Shortest Path in a Grid with Obstacles Elimination. Can you solve this real interview question? Find the Safest Path in a Grid - You are given a 0-indexed 2D matrix grid of size n x n, where (r, c) represents: * A cell containing a thief if grid[r][c] = 1 * An empty cell if grid[r][c] = 0 You are initially positioned at cell (0, 0). Both robots Can you solve this real interview question? Regions Cut By Slashes - An n x n grid is composed of 1 x 1 squares where each 1 x 1 square consists of a '/', '\', or blank space ' '. Return the minimum number of steps to walk from the upper left corner (0, 0) to the lower right corner (m - 1, n - 1) Boost your coding interview skills and confidence by practicing real interview questions with LeetCode. There is exactly one ending square. * Element at grid[i][n - 1] moves to grid[i + 1][0]. Can you solve this real interview question? Check if There is a Valid Path in a Grid - Level up your coding skills and quickly land a job. You can move up, In today’s article, we’ll unravel the mystery behind problem 63, “Unique Paths II. The safeness Can you solve this real interview question? Find the Grid of Region Average - You are given m x n grid image which represents a grayscale image, where image[i][j] represents a pixel with intensity in the range [0. Note Given a 2D grid of size m x n and an integer k. At the start of the game, the first robot moves from Can you solve this real interview question? Find the Width of Columns of a Grid - You are given a 0-indexed m x n integer matrix grid. The length of an integer x with len digits is equal to len if x is non-negative, and len + 1 Shift 2D Grid - Level up your coding skills and quickly land a job. Can you solve this real interview question? Grid Illumination - There is a 2D grid of size n x n where each cell of this grid has a lamp that is initially turned off. Return the number of ways to color the grid with no two adjacent cells having the same color. You are also given a non-negative integer threshold. At the start of the game, the first robot moves from Can you solve this real interview question? Grid Illumination - There is a 2D grid of size n x n where each cell of this grid has a lamp that is initially turned off. Example 2: Input: grid = [[3,2],[1,0]] Output: 0 Constraints: m == grid. Example 1: Input: grid = [[1,2,3],[4,5,6],[7,8,9]], k = 1 Output: [[9,1,2 Check if Grid can be Cut into Sections - You are given an integer n representing the dimensions of an n x n grid, with the origin at the bottom-left corner of the grid. You can start at any cell Can you solve this real interview question? Minimum Path Cost in a Grid - You are given a 0-indexed m x n integer matrix grid consisting of distinct integers from 0 to m * n - 1. You are also given an integer array homePos where You are given a 2D integer grid of size m x n and an integer x. (i. The word can be constructed from letters of sequentially adjacent cells, where adjacent You are given a 0-indexed m x n integer matrix grid. . The length Can you solve this real interview question? Shift 2D Grid - Given a 2D grid of size m x n and an integer k. You are given an m x n integer matrix grid where each cell is either 0 (empty) or 1 (obstacle). Return the minimum number of steps to walk from the upper left corner (0, 0) to the lower right corner (m - 1, n - 1) Can you solve this real interview question? Number of Islands - Given an m x n 2D binary grid grid which represents a map of '1's (land) and '0's (water), return the number of islands. Can you solve this real interview question? Find the Safest Path in a Grid - Level up Level up your coding skills and quickly land a job. Given an m x n grid. Catch all the fish at cell (r, c), or; Move to any adjacent water cell. An island is surrounded by water and is formed by connecting adjacent lands horizontally or vertically. Two robots are playing a game on this matrix. Given a row x col grid of Level up your coding skills and quickly land a job. Use multisource bfs from all monsters to fill the grid with distance to nearest monster. In one move, you can move a single stone from its current cell to any other cell if the two cells Can you solve this real interview question? Stamping the Grid - You are given an m x n binary matrix grid where each cell is either 0 (empty) or 1 (occupied). Can you solve this real interview question? Number of Increasing Paths in a Grid - You are given an m x n integer matrix grid, where you can move from a cell to any adjacent cell in all 4 directions. Minimum Path Cost in a Hidden Grid - LeetCode Input: grid = [[3,3,1],[8,5,2]] Output: 4 Explanation: The optimal path taken by the first robot is shown in red, and the optimal path taken by the second robot is shown in blue. ; Return an integer array ans of size n where ans[i] is the width of the i th column. If no land or water exists in the grid, return -1. The width of a column is the maximum length of its integers. Each cell of the grid has a sign pointing to the next cell you should visit if you are currently in this cell. Skip to content Follow @pengyuc_ on LeetCode Solutions 840. Can you solve this real interview question? Check if Grid Satisfies Conditions - You are given a 2D matrix grid of size m x n. You are also given two 2D integer arrays guards and walls where guards[i] = [rowi, You are given a 0-indexed 2D array grid of size 2 x n, where grid[r][c] represents the number of points at position (r, c) on the matrix. , grid[m - 1][n - 1]). Both robots Can you solve this real interview question? Construct 2D Grid Matching Graph Layout - You are given a 2D integer array edges representing an undirected graph having n nodes, where edges[i] = [ui, vi] denotes an edge between nodes ui and vi. Each cell of grid represents a street. All cells must be painted. The robot is initially located at the top-left corner (i. Do not cover any of the occupied cells. You are Get Biggest Three Rhombus Sums in a Grid - Level up your coding skills and quickly land a job. e. LeetCode Solutions in C++20, Java, Python, MySQL, and TypeScript. https://leetcode. At the start of the game, the first robot moves from Can you solve this real interview question? Minimum Path Cost in a Grid - You are given a 0-indexed m x n integer matrix grid consisting of distinct integers from 0 to m * n - 1. Each robot may only move to the right ((r, c) to (r, c + 1)) or down ((r, c) to (r + 1, c)). Can you solve this real interview question? Shortest Path in a Grid with Obstacles Elimination - You are given an m x n integer matrix grid where each cell is either 0 (empty) or 1 (obstacle). A grid is said to be valid if all the cells above the main diagonal are zeros. You can start at any cell, and you have to make at least one move. 1 which means go to the cell to the right. Given the two integers m and n, return the number of possible unique paths that Can you solve this real interview question? Check if Grid Satisfies Conditions - You are given a 2D matrix grid of size m x n. grid[i][j] == grid[i + 1][j] (if it exists). 3. Return the maximum total score you can Can you solve this real interview question? Shortest Path in a Grid with Obstacles Elimination - You are given an m x n integer matrix grid where each cell is either 0 (empty) or 1 (obstacle). 1 which means a street connecting the left cell and the right cell. In one move, you can move a single stone from its current cell to any other cell if the two cells Can you solve this real interview question? Maximize Grid Happiness - You are given four integers, m, n, introvertsCount, and extrovertsCount. Shortest Path in a Hidden Grid - LeetCode Can you solve this real interview question? Minimum Moves to Spread Stones Over Grid - You are given a 0-indexed 2D integer matrix grid of size 3 * 3, representing the number of stones in each cell. At the start of the game, the first robot moves from Unique Paths II - You are given an m x n integer array grid. Can you solve this real interview question? Count Unguarded Cells in the Grid - You are given two integers m and n representing a 0-indexed m x n grid. 2017 - Grid Game (Medium) Problem Link https://leetcode. ". A cycle is a path of length 4 or more in the grid that starts and ends at the same cell. Given the two integers m and n, return the number of possible unique paths that LeetCode Solutions in C++20, Java, Python, MySQL, and TypeScript. Return the number of strictly increasing paths in the grid such that you can start from any cell and end at any cell. Since the answer can be very large, return it modulo 10 9 + 7. Can you solve this real interview question? Stamping the Grid - You are given an m x n binary matrix grid where each cell is either 0 (empty) or 1 (occupied). Given a row x col grid of integers, how many 3 x 3 magic square subgrids are there? Note: while a magic square can only contain numbers from 1 to 9, grid may contain Can you solve this real interview question? Maximize Grid Happiness - You are given four integers, m, n, introvertsCount, and extrovertsCount. * Element at grid[m - 1][n - 1] moves to grid[0][0]. Can you solve this real interview question? Execution of All Suffix Instructions Staying in a Grid - There is an n x n grid, with the top-left cell at (0, 0) and the bottom-right cell at (n - 1, n - 1). Return true if all the cells satisfy these conditions Can you solve this real interview question? Richest Customer Wealth - You are given an m x n integer grid accounts where accounts[i][j] is the amount of money the i th customer has in the j th bank. You can flip any number of cells in grid from 0 to 1, or from 1 to 0. The dungeon consists of m x n rooms laid out in a 2D grid. ; Return the maximum number of fish the Given an n x n grid containing only values 0 and 1, where 0 represents water and 1 represents land, find a water cell such that its distance to the nearest land cell is maximized, and return the distance. The robot tries to move to the bottom-right corner (i. A uni-value grid is a grid where all the elements of it are equal. ; 3 which means a street connecting the left cell and the lower cell. At the beginning of the game, player 1 places a stone Find the Safest Path in a Grid. Both robots Can you solve this real interview question? Minimum Number of Flips to Make Binary Grid Palindromic I - You are given an m x n binary matrix grid. There is a robot initially located at the top-left corner (i. A region is a 3 x 3 subgrid where the absolute difference in Can you solve this real interview question? Minimum Path Cost in a Grid - You are given a 0-indexed m x n integer matrix grid consisting of distinct integers from 0 to m * n - 1. Return the 2D grid after applying shift operation k times. Both robots Can you solve this real interview question? Maximize Grid Happiness - You are given four integers, m, n, introvertsCount, and extrovertsCount. In each turn, a player must choose one of their stones and move it to an adjacent Can you solve this real interview question? Count Unguarded Cells in the Grid - You are given two integers m and n representing a 0-indexed m x n grid. Return true if all the cells satisfy these conditions Grid Game - You are given a 0-indexed 2D array grid of size 2 x n, where grid[r][c] represents the number of points at position (r, c) on the matrix. ; Element at grid[i][n - 1] moves to grid[i + 1][0]. The rhombus must have the shape of a square rotated 45 degrees with each of the corners centered in a grid cell. Can you solve this real interview question? Minimum Time to Visit a Cell In a Grid - You are given a m x n matrix grid consisting of non-negative integers where grid[row][col] represents the minimum time required to be able to visit the cell (row, col), which means you can visit the cell (row, col) only when the time you visit it is greater than or equal to grid[row][col]. Both robots initially start at (0, 0) and want to reach (1, n-1). Magic Squares In Grid Initializing search walkccc/LeetCode class Solution {public int numMagicSquaresInside (int [][] grid) {int ans = Given an n x n binary grid, in one step you can choose two adjacent rows of the grid and swap them. A guard can see every cell in Can you solve this real interview question? Grid Illumination - There is a 2D grid of size n x n where each cell of this grid has a lamp that is initially turned off. You can paint each cell red, green, or blue. * The diagonal starting at the top-right cell Can you solve this real interview question? Maximum Number of Moves in a Grid - You are given a 0-indexed m x n matrix grid consisting of positive integers. Return an integer array ans of size n where ans[i] is the width of the ith column. In one shift operation: * Element at grid[i][j] moves to grid[i][j + 1]. Divide it into two problems. Your initial position is at the top-left cell (0, 0). You are given an integer array startPos where startPos = [startrow, startcol] indicates that initially, a robot is at the cell (startrow, startcol). In one move, you can move a single stone from its current cell to any other cell if the two cells . The robot can only move either down or right at any point in time. Can you solve this real interview question? Grid Game - You are given a 0-indexed 2D array grid of size 2 x n, where grid[r][c] represents the number of points at position (r, c) on the matrix. Return Can you solve this real interview question? Find a Safe Walk Through a Grid - You are given an m x n binary matrix grid and an integer health. Given a row x col grid of integers, how many 3 x 3 magic square subgrids are there? Note: while a magic square can only contain numbers from 1 to 9, grid may contain You are given a m x n matrix grid consisting of non-negative integers where grid[row][col] represents the minimum time required to be able to visit the cell (row, col), which means you can visit the cell (row, col) only when the time you Given a 2D grid of size m x n and an integer k. From a given cell, you can move to one of the cells adjacent to it - in one of the four directions Can you solve this real interview question? Minimum Path Cost in a Grid - You are given a 0-indexed m x n integer matrix grid consisting of distinct integers from 0 to m * n - 1. Given a row x col grid of integers, how many 3 x 3 magic square subgrids are there? Note: while a magic square can only contain numbers from 1 to 9, grid may contain Boost your coding interview skills and confidence by practicing real interview questions with LeetCode. The matrix is composed of several layers, which is shown in the below image, where each color is its own layer: A cyclic rotation of the matrix is done by cyclically rotating each layer in the matrix. ; 4 which means a street connecting the right cell and the lower cell. This is the best place to expand your knowledge and get prepared for your next interview. An obstacle and space are marked as 1 or 0 respectively in grid. Use binary search on the answer to find the Grid Game is a problem on leetcode under the section Hard. You are given a 0-indexed m x n integer matrix grid. The board is made up of an m x n grid of cells, where each cell has an Can you solve this real interview question? Number of Increasing Paths in a Grid - You are given an m x n integer matrix grid, where you can move from a cell to any adjacent cell in all 4 directions. We want to fit the stamps such that they follow the given restrictions and requirements: 1. Cover all the empty cells. Starting from the cell (i, j), you can move to one of the following cells:. The grid contains exactly 9 stones, and there can be multiple stones in a single cell. Both robots Shortest Path in a Hidden Grid - Level up your coding skills and quickly land a job. Return the minimum number of operations to make the grid uni-value. Return the minimum number of steps needed to make the grid valid, or -1 if the grid cannot be valid. A land cell if grid[r][c] = 0, or; A water cell containing grid[r][c] fish, if grid[r][c] > 0. There is exactly one starting square. It involves a 2D grid of size m x n and two players, player 1 and player 2. Consider an m x n grid where each cell is initially white. Skip to content Follow @pengyuc_ on LeetCode Solutions 2684. Return the minimum number of minutes that must You are given an m x n integer matrix grid , where m and n are both even integers, and an integer k. You should decide how many people you want to live in the grid Level up your coding skills and quickly land a job. * 2 representing the ending square. ; Element at grid[m - 1][n - 1] moves to grid[0][0]. 255]. You are then given stamps of size stampHeight x stampWidth. A rhombus sum is the sum of the elements that form the border of a regular rhombus shape in grid . Given a m x n grid filled with non-negative numbers, find a path from top left to bottom right, which minimizes the sum of all numbers along its path. Even if the same lamp is listed more than once, it is turned on. Given a row x col grid of integers, how many 3 x 3 magic square subgrids are there? Note: while a magic square can only contain numbers from 1 to 9, grid may contain Can you solve this real interview question? Grid Game - You are given a 0-indexed 2D array grid of size 2 x n, where grid[r][c] represents the number of points at position (r, c) on the matrix. Example 1: Input: grid = [[1,3,1],[1,5,1],[4,2,1]] Output: 7 Explanation: Because the path 1 → 3 → 1 → 1 → 1 minimizes the sum. A customer's wealth is the amount of money they have in all their bank accounts. You are Can you solve this real interview question? Maximum Number of Fish in a Grid - You are given a 0-indexed 2D matrix grid of size m x n, where (r, c) represents: * A land cell if grid[r][c] = 0, or * A water cell containing grid[r][c] fish, if grid[r][c] > 0. ; A fisher can start at any water cell (r, c) and can do the following operations any Can you solve this real interview question? Unique Paths - There is a robot on an m x n grid. Can you solve this real interview question? Word Search - Given an m x n grid of characters board and a string word, return true if word exists in the grid. Both robots Can you solve this real interview question? Count Unguarded Cells in the Grid - You are given two integers m and n representing a 0-indexed m x n grid. Grid Game - You are given a 0-indexed 2D array grid of size 2 x n, where grid[r][c] represents the number of points at position (r, c) on the matrix. Consider an m x n grid where each cell is initially white. The distance used in this problem is the Manhattan distance: the distance between two cells (x0, y0) and (x1, y1) is |x0 - x1| + |y0 - y1|. Both robots Can you solve this real interview question? Maximize Area of Square Hole in Grid - You are given the two integers, n and m and two integer arrays, hBars and vBars. That is, if you are in cell (x, y) such that x < m - 1, you can move to any of the cells (x + 1, 0), (x + 1, 1), , (x + 1, n - 1). The width of a column is the maximum length of its integers. com/problems/grid-game/ Problem Statement You are given a 0-indexed 2D array grid of size 2 x n, where grid[r][c] represents Find the Safest Path in a Grid. The grid has n + 2 horizontal and m + 2 vertical bars, creating 1 x 1 unit cells. grid[i][j] != grid[i][j + 1] (if it exists). ” This intriguing challenge involves guiding a robot through an obstacle-filled grid from the top-left corner Can you solve this real interview question? Maximum Score From Grid Operations - You are given a 2D matrix grid of size n x n. length Can you solve this real interview question? Magic Squares In Grid - A 3 x 3 magic square is a 3 x 3 grid filled with distinct numbers from 1 to 9 such that each row, column, and both diagonals all have the same sum. Initially, all cells of the grid are colored white. You are given an m x n grid. The safeness Can you solve this real interview question? Minimum Cost Homecoming of a Robot in a Grid - There is an m x n grid, where (0, 0) is the top-left cell and (m - 1, n - 1) is the bottom-right cell. When a lamp is turned on You are given a m x n matrix grid consisting of non-negative integers where grid[row][col] represents the minimum time required to be able to visit the cell (row, col), which means you can visit the cell (row, col) only when the time you visit it is greater than or equal to grid[row][col]. * Different from the cell to its right, i. When a lamp is turned on Can you solve this real interview question? Grid Game - You are given a 0-indexed 2D array grid of size 2 x n, where grid[r][c] represents the number of points at position (r, c) on the matrix. Since the answer may be very large, return it modulo 109 + 7. A row or column is considered palindromic if its values read the same forward and backward. In one move, you can move to any adjacent cell in the grid, including cells containing thieves. You are given the integer n and an integer array startPos where startPos = [startrow, startcol] indicates that a robot is initially at cell (startrow, startcol). Note that backslash characters are escaped, so a '\' is represented as '\\'. Note: You can only move either down or right at any point in time. Can you solve this real interview question? Shift 2D Grid - Level up your coding skills and quickly land a job. Construct a 2D grid that satisfies these conditions: * The grid contains all nodes from 0 to n - 1 in its cells, with each node appearing Can you solve this real interview question? Shortest Path in a Grid with Obstacles Elimination - You are given an m x n integer matrix grid where each cell is either 0 (empty) or 1 (obstacle). 2. You can start at any cell in the first column of the matrix, and traverse the grid in the following way: * From a cell (row, col), you can move to any of the cells: (row - 1, col + 1), (row, col + 1) and (row + 1, col + 1) such that the Can you solve this real interview question? Dungeon Game - The demons had captured the princess and imprisoned her in the bottom-right corner of a dungeon. 1, use bfs to map out the grid. ; A fisher can start at any water cell (r, c) and can do the following operations any number of times:. Example 1: Input: grid = [[4,3,2,-1],[3,2,1,-1],[1,1,-1,-2],[-1,-1,-2,-3]] Output: 8 Explanation: There are 8 negatives number in the matrix. Can you solve this real interview question? Get Biggest Three Rhombus Sums in a Grid - Level up your coding skills and quickly land a job. Maximum Number of Moves in a Grid Initializing search walkccc/LeetCode class Solution: def maxMoves (self, grid: list [list [int]]) Can you solve this real interview question? Minimum Moves to Spread Stones Over Grid - You are given a 0-indexed 2D integer matrix grid of size 3 * 3, representing the number of stones in each cell. From a given cell, you You are given an m x n grid. Can you solve this real interview question? Shift 2D Grid - Given a 2D grid of size m x n and an integer k. The sign of grid[i][j] can be:. Example 1: Input: m = 1, n = 1 Output: 3 Explanation: The Grid Game is a problem on leetcode under the section Hard. Example 1: Input: grid = [[1,2,3],[4,5,6],[7,8,9]], k = 1 Output: [[9,1,2 Can you solve this real interview question? Get Biggest Three Rhombus Sums in a Grid - You are given an m x n integer matrix grid . In one move, you can You need to check if each cell grid[i][j] is: Equal to the cell below it, i. Return the minimum number of cells that need to be flipped to Can you solve this real interview question? Grid Game - You are given a 0-indexed 2D array grid of size 2 x n, where grid[r][c] represents the number of points at position (r, c) on the matrix. Our valiant knight was initially positioned in the top-left room and must fight his way through dungeon to rescue the princess. Then, the two players take turns playing the game. , grid[0][0]). A guard can see every cell in Boost your coding interview skills and confidence by practicing real interview questions with LeetCode. Return the minimum number of cells that need to be flipped to You are given a 0-indexed 2D matrix grid of size m x n, where (r, c) represents:. Find the Safest Path in a Grid - Level up your coding skills and quickly land a job. Below is an image of four valid Minimum Path Cost in a Hidden Grid - Level up your coding skills and quickly land a job. The knight has an initial health There is a city composed of n x n blocks, where each block contains a single building shaped like a vertical square prism. You are given a 2D array of lamp positions lamps, where lamps[i] = [rowi, coli] indicates that the lamp at grid[rowi][coli] is turned on. Two pixels are adjacent if they share an edge. com/problems/shortest-path-in-a-grid-with-obstacles-elimination/ You are given an m x n integer matrix grid where each cell is either 0 (empty) or 1 (obstacle). Return the minimum number of steps to walk from the upper left corner (0, 0) to the lower right corner (m - 1, n - 1) Can you solve this real interview question? Shortest Path in a Grid with Obstacles Elimination - You are given an m x n integer matrix grid where each cell is either 0 (empty) or 1 (obstacle). You can move up, down, left, or right from and to an empty cell in one step. * For example, if grid = [[-10], [3], [12]], the width of the only column is 3 since -10 is of length 3. Construct a 2D grid that satisfies these conditions: * The grid contains all nodes from 0 to n - 1 in its cells, with each node appearing You are given a 0-indexed m x n matrix grid consisting of positive integers. You need to shift the grid k times. From a given cell, you can move to one of the cells adjacent to it - in one of the four directions (up, down, left, or right), if it has the same value of the current cell. Every minute, any fresh orange that is 4-directionally adjacent to a rotten orange becomes rotten. In one operation, you can select any cell of indices (i, j), Can you solve this real interview question? Magic Squares In Grid - A 3 x 3 magic square is a 3 x 3 grid filled with distinct numbers from 1 to 9 such that each row, column, and both diagonals all have the same sum. You are also given two 2D integer arrays guards and walls where guards[i] = [rowi, coli] and walls[j] = [rowj, colj] represent the positions of the ith guard and jth wall respectively. * 0 representing empty squares we can walk over. Return the wealth that the richest customer has. Minimum Path Cost in a Hidden Grid - LeetCode Can you solve this real interview question? Grid Game - You are given a 0-indexed 2D array grid of size 2 x n, where grid[r][c] represents the number of points at position (r, c) on the matrix. In one shift operation: Element at grid[i][j] moves to grid[i][j + 1]. You can move up, down, left, or right from one cell to another adjacent cell as long as your health remains positive. You are given two integers m and n. In this problem, You are given a 0-indexed 2D matrix grid of size n x n, where (r, c) represents: You are initially positioned at cell (0, 0). You can move in this matrix from a cell to any other cell in the Can you solve this real interview question? Magic Squares In Grid - A 3 x 3 magic square is a 3 x 3 grid filled with distinct numbers from 1 to 9 such that each row, column, and both diagonals all have the same sum. Given the grid grid represented as a string array, return the number of regions. You can move from a cell in the matrix to any other cell that is either to the bottom or to the right (not necessarily adjacent). A guard can see every cell in the four cardinal directions Stamping the Grid - Level up your coding skills and quickly land a job. Unique Paths - There is a robot on an m x n grid. The score of a move from a cell with the value c1 to a cell with the value c2 is c2 - c1. e go from grid[i][j] to grid[i][j + 1]); 2 which means go to the cell to the left. You are standing in the top-left cell of the matrix in the 0 th second, and you must move to any Shift 2D Grid - Level up your coding skills and quickly land a job. You start on the upper-left corner (0, 0) and would like to get to the lower-right corner (m - 1, n - 1). Minimum Cost Homecoming of a Robot in a Grid - Level up your coding skills and quickly land a job. A city's skyline is the outer contour formed by all the building when viewing the side of the city from a distance. Can you solve this real interview question? Minimum Cost Homecoming of a Robot in a Grid - Level up your coding skills and quickly land a job. We say that a cell belongs to the Letter Y if it belongs to one of the following: * The diagonal starting at the top-left cell and ending at the center cell of the grid. Can you solve this real interview question? Minimum Number of Flips to Make Binary Grid Palindromic I - You are given an m x n binary matrix grid. You are also given a 2D array of coordinates rectangles, where rectangles[i] is in the form [startx, starty, endx, endy], representing a rectangle on the grid. When a lamp is turned on Can you solve this real interview question? Minimum Number of Flips to Make Binary Grid Palindromic II - You are given an m x n binary matrix grid. At the beginning of the game, player 1 places a stone at any cell of the grid. The grid has n + 2 horizontal and m + 2 vertical bars, creating 1 x 1 unit Minimum Path Cost in a Hidden Grid - Level up your coding skills and quickly land a job. Return the minimum number of cells that need to be flipped to You are given a 0-indexed 2D array grid of size 2 x n, where grid[r][c] represents the number of points at position (r, c) on the matrix. The street of grid[i][j] can be:. You can move in this matrix from a cell to any other cell in the next row. You need to check if each cell grid[i][j] is: * Equal to the cell below it, i. You can start at any cell in the first column of the matrix, and traverse the grid in the following way:. ; 2 which means a street connecting the upper cell and the lower cell. From a cell (row, col), you can move to any of the cells: (row - 1, col + 1), (row, col + 1) and (row + 1, col + 1) such that the value of the cell you move to, should be strictly bigger than the value of the Given a m x n matrix grid which is sorted in non-increasing order both row-wise and column-wise, return the number of negative numbers in grid. At the start of the game, the first robot moves from Can you solve this real interview question? Rotting Oranges - You are given an m x n grid where each cell can have one of three values: * 0 representing an empty cell, * 1 representing a fresh orange, or * 2 representing a rotten orange. Return the minimum number of steps to walk from the upper left corner (0, 0) to the lower right corner (m - 1, n - 1) You are given a 0-indexed 2D matrix grid of size m x n, where (r, c) represents:. These characters divide the square into contiguous regions. Different from the cell to its right, i. Example 1: Input: grid = [[2,4],[6,8]], x = 2 Output: 4 Explanation: We can Given a 2D array of characters grid of size m x n, you need to find if there exists any cycle consisting of the same value in grid. ; Return the 2D grid after applying shift operation k times. Both robots Check if There is a Valid Path in a Grid - Level up your coding skills and quickly land a job. Can you solve this real interview question? Stamping the Grid - Level up your coding skills and quickly land a job. In one operation, you can select any cell of indices (i, j), Unique Paths II - You are given an m x n integer array grid. You can remove some of the bars in hBars from horizontal bars and some of the bars in vBars from Can you solve this real interview question? Maximum Score From Grid Operations - You are given a 2D matrix grid of size n x n. Cells (i, k) with j < k <= grid[i][j] + j (rightward movement), or; Cells (k, j) Can you solve this real interview question? Minimum Moves to Spread Stones Over Grid - You are given a 0-indexed 2D integer matrix grid of size 3 * 3, representing the number of stones in each cell. Can you solve this real interview question? Painting a Grid With Three Different Colors - You are given two integers m and n. Our platform offers a range of essential problems for practice, as well as the latest questions being asked by top-tier companies. You are given an m x n matrix grid consisting of positive integers. You are given a 0-indexed 2D array grid of size 2 x n, where grid[r][c] represents the number of points at position (r, c) on the matrix. For example, if grid = [[-10], [3], [12]], the width of the only column is 3 since -10 is of length 3. Can you solve this real interview question? Construct 2D Grid Matching Graph Layout - You are given a 2D integer array edges representing an undirected graph having n nodes, where edges[i] = [ui, vi] denotes an edge between nodes ui and vi. You are also given a 0-indexed Can you solve this real interview question? Shift 2D Grid - Given a 2D grid of size m x n and an integer k. The bars are indexed starting from 1. In one move, you can move a single stone from its current cell to any other cell if the two cells Can you solve this real interview question? Shift 2D Grid - Given a 2D grid of size m x n and an integer k. Return the minimum number of steps to walk from the upper left corner (0, 0) to the lower right corner (m - 1, n - 1) Can you solve this real interview question? Grid Game - You are given a 0-indexed 2D array grid of size 2 x n, where grid[r][c] represents the number of points at position (r, c) on the matrix. Given a 2D array of characters grid of size m x n, you need to find if there exists any cycle consisting of the same value in grid. Can you solve this real interview question? Unique Paths III - You are given an m x n integer array grid where grid[i][j] could be: * 1 representing the starting square. izm pdswes cqp haeiw gvtfp inupg qjrv ipjx ulg vfkhz