How to Solve Maximum Difference Score in a Grid Leetcode Problem - Interview Coder Guide
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How to Solve Maximum Difference Score in a Grid Problem

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Medium#3391
LeetCode Problem

Maximum Difference Score in a Grid

You are given an m x n matrix grid consisting of positive integers. 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). Th...

ArrayDynamic ProgrammingMatrix

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Problem Breakdown

Understanding the Maximum Difference Score in a Grid Problem

Let's break down this LeetCode problem and understand what makes it challenging in interview settings.

Problem Statement

You are given an m x n matrix grid consisting of positive integers. 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). The score of a move from a cell with the value c1 to a cell with the value c2 is c2 - c1. You can start at any cell, and you have to make at least one move. Return the maximum total score you can achieve.

MediumProblem #3391
LeetCode

Maximum Difference Score in a Grid

Related Topics
ArrayDynamic ProgrammingMatrix
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Examples

Example 1
INPUT
grid = [[9,5,7,3],[8,9,6,1],[6,7,14,3],[2,5,3,1]]
OUTPUT
9
EXPLANATION

We start at the cell (0, 1), and we perform the following moves: - Move from the cell (0, 1) to (2, 1) with a score of 7 - 5 = 2. - Move from the cell (2, 1) to (2, 2) with a score of 14 - 7 = 7. The total score is 2 + 7 = 9.

Example 2
INPUT
grid = [[4,3,2],[3,2,1]]
OUTPUT
-1
EXPLANATION

We start at the cell (0, 0), and we perform one move: (0, 0) to (0, 1). The score is 3 - 4 = -1.

Constraints

m == grid.length
n == grid[i].length
2 <= m, n <= 1000
4 <= m * n <= 105
1 <= grid[i][j] <= 105

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