2018. Check if Word Can Be Placed In Crossword
Medium
30 Points
Array
Matrix
Enumeration
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:
Given a string word, return true if word can be placed in board, or false otherwise.
Examples
Example 1
Input: board = [["#", " ", "#"], [" ", " ", "#"], ["#", "c", " "]], word = "abc"
Output: true
Explanation: The word "abc" can be placed as shown above (top to bottom).
Example 2
Input: board = [[" ", "#", "a"], [" ", "#", "c"], [" ", "#", "a"]], word = "ac"
Output: false
Explanation: It is impossible to place the word because there will always be a space/letter above or below it.
Example 3
Input: board = [["#", " ", "#"], [" ", " ", "#"], ["#", " ", "c"]], word = "ca"
Output: true
Explanation: The 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.
2018. Check if Word Can Be Placed In Crossword
Medium
30 Points
Array
Matrix
Enumeration
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:
Given a string word, return true if word can be placed in board, or false otherwise.
Examples
Example 1
Input: board = [["#", " ", "#"], [" ", " ", "#"], ["#", "c", " "]], word = "abc"
Output: true
Explanation: The word "abc" can be placed as shown above (top to bottom).
Example 2
Input: board = [[" ", "#", "a"], [" ", "#", "c"], [" ", "#", "a"]], word = "ac"
Output: false
Explanation: It is impossible to place the word because there will always be a space/letter above or below it.
Example 3
Input: board = [["#", " ", "#"], [" ", " ", "#"], ["#", " ", "c"]], word = "ca"
Output: true
Explanation: The 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.