How to Solve Minesweeper Leetcode Problem - Interview Coder Guide
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How to Solve Minesweeper Problem

Master the Minesweeper LeetCode problem with undetectable real-time assistance. Get instant solutions and explanations during your coding interviews.

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Medium#529
LeetCode Problem

Minesweeper

Let's play the minesweeper game (Wikipedia, online game)! You are given an m x n char matrix board representing the game board where: 'M' represents an unrevealed mine, 'E' represents an unrevealed em...

ArrayDepth-First SearchBreadth-First Search+1 more

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✨ Get instant solutions, explanations, and code generation

Problem Breakdown

Understanding the Minesweeper Problem

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

Problem Statement

Let's play the minesweeper game (Wikipedia, online game)! You are given an m x n char matrix board representing the game board where: 'M' represents an unrevealed mine, 'E' represents an unrevealed empty square, 'B' represents a revealed blank square that has no adjacent mines (i.e., above, below, left, right, and all 4 diagonals), digit ('1' to '8') represents how many mines are adjacent to this revealed square, and 'X' represents a revealed mine. You are also given an integer array click where click = [clickr, clickc] represents the next click position among all the unrevealed squares ('M' or 'E'). Return the board after revealing this position according to the following rules: If a mine 'M' is revealed, then the game is over. You should change it to 'X'. If an empty square 'E' with no adjacent mines is revealed, then change it to a revealed blank 'B' and all of its adjacent unrevealed squares should be revealed recursively. If an empty square 'E' with at least one adjacent mine is revealed, then change it to a digit ('1' to '8') representing the number of adjacent mines. Return the board when no more squares will be revealed.

MediumProblem #529
LeetCode

Minesweeper

Related Topics
ArrayDepth-First SearchBreadth-First SearchMatrix
How Interview Coder Helps

Get real-time assistance for Minesweeper problems during coding interviews. Interview Coder provides instant solutions and explanations.

Examples

Example 1
INPUT
board = [["E","E","E","E","E"],["E","E","M","E","E"],["E","E","E","E","E"],["E","E","E","E","E"]], click = [3,0]
OUTPUT
[["B","1","E","1","B"],["B","1","M","1","B"],["B","1","1","1","B"],["B","B","B","B","B"]]
Example 2
INPUT
board = [["B","1","E","1","B"],["B","1","M","1","B"],["B","1","1","1","B"],["B","B","B","B","B"]], click = [1,2]
OUTPUT
[["B","1","E","1","B"],["B","1","X","1","B"],["B","1","1","1","B"],["B","B","B","B","B"]]

Constraints

m == board.length
n == board[i].length
1 <= m, n <= 50
board[i][j] is either 'M', 'E', 'B', or a digit from '1' to '8'.
click.length == 2
0 <= clickr < m
0 <= clickc < n
board[clickr][clickc] is either 'M' or 'E'.

How Interview Coder Helps with Leetcode Problems

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Frequently Asked Questions

Common questions about solving Minesweeper and using Interview Coder during coding interviews.

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