Given an xn grid of characters board and a string word, retun true if word exists in the grid. The word can be constructed from letters of sequentially adjacent cells, where adjacent cells are horizontally or vertically neighboring. The same letter cell may not be used more than once. Example 1: A В С E

Computer Networking: A Top-Down Approach (7th Edition)
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Author:James Kurose, Keith Ross
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Given an xn grid of characters board and a string word, return true if word exists in the grid.
The word can be constructed from letters of sequentially adjacent cells, where adjacent cells are horizontally or
vertically neighboring. The same letter cell may not be used more than once.
Example 1:
A В С
F
C
A
DE
Input: board = [["A","8","C", "E"1.1"S","F", "C","S"1.1"A", "D", "E", "E"11, word = "ABCCED"
Output: true
Transcribed Image Text:Given an xn grid of characters board and a string word, return true if word exists in the grid. The word can be constructed from letters of sequentially adjacent cells, where adjacent cells are horizontally or vertically neighboring. The same letter cell may not be used more than once. Example 1: A В С F C A DE Input: board = [["A","8","C", "E"1.1"S","F", "C","S"1.1"A", "D", "E", "E"11, word = "ABCCED" Output: true
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