How to Solve Make a Square with the Same Color Problem
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Make a Square with the Same Color
You are given a 2D matrix grid of size 3 x 3 consisting only of characters 'B' and 'W'. Character 'W' represents the white color, and character 'B' represents the black color. Your task is to change t...
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Understanding the Make a Square with the Same Color Problem
Let's break down this LeetCode problem and understand what makes it challenging in interview settings.
Problem Statement
You are given a 2D matrix grid of size 3 x 3 consisting only of characters 'B' and 'W'. Character 'W' represents the white color, and character 'B' represents the black color. Your task is to change the color of at most one cell so that the matrix has a 2 x 2 square where all cells are of the same color. Return true if it is possible to create a 2 x 2 square of the same color, otherwise, return false.
Make a Square with the Same Color
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Examples
grid = [["B","W","B"],["B","W","W"],["B","W","B"]]trueIt can be done by changing the color of the grid[0][2].
grid = [["B","W","B"],["W","B","W"],["B","W","B"]]falseIt cannot be done by changing at most one cell.
grid = [["B","W","B"],["B","W","W"],["B","W","W"]]trueThe grid already contains a 2 x 2 square of the same color.
Constraints
grid.length == 3grid[i].length == 3grid[i][j] is either 'W' or 'B'.How Interview Coder Helps with Leetcode Problems
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