How to Solve Check if Word Can Be Placed In Crossword Problem
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Check if Word Can Be Placed In Crossword
You are given an m x n matrix board, representing the current state of a crossword puzzle. The crossword contains lowercase English letters (from solved words), ' ' to represent any empty cells, and '...
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Understanding the Check if Word Can Be Placed In Crossword Problem
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Problem Statement
You are given an m x n matrix board, representing the current state of a crossword puzzle. The crossword contains lowercase English letters (from solved words), ' ' to represent any empty cells, and '#' to represent any blocked cells. A word can be placed horizontally (left to right or right to left) or vertically (top to bottom or bottom to top) in the board if: It does not occupy a cell containing the character '#'. The cell each letter is placed in must either be ' ' (empty) or match the letter already on the board. There must not be any empty cells ' ' or other lowercase letters directly left or right of the word if the word was placed horizontally. There must not be any empty cells ' ' or other lowercase letters directly above or below the word if the word was placed vertically. Given a string word, return true if word can be placed in board, or false otherwise.
Check if Word Can Be Placed In Crossword
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Examples
board = [["#", " ", "#"], [" ", " ", "#"], ["#", "c", " "]], word = "abc"trueThe word "abc" can be placed as shown above (top to bottom).
board = [[" ", "#", "a"], [" ", "#", "c"], [" ", "#", "a"]], word = "ac"falseIt is impossible to place the word because there will always be a space/letter above or below it.
board = [["#", " ", "#"], [" ", " ", "#"], ["#", " ", "c"]], word = "ca"trueThe word "ca" can be placed as shown above (right to left).
Constraints
m == board.lengthn == board[i].length1 <= m * n <= 2 * 105board[i][j] will be ' ', '#', or a lowercase English letter.1 <= word.length <= max(m, n)word will contain only lowercase English letters.How Interview Coder Helps with Leetcode Problems
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