[algogeeks] finding string in matrix grid

[tech coder]

check whether a string is present in matrix grid (either horizonatal(left to
right), vertical(top to boottom) ,reverse horizonatal(right to left)
 reverse vertical(bottom to top).

i think the question is clear.

first try to give solution for horizontal and vertical only, just give the
logic

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Re: [algogeeks] finding string in matrix grid

[Anup Ghatage]

Hey, Tell me if this assumption of the problem statement is correct..

String: ram

Matrix:
|r  | a  b
|a | g  h
|m|  j  d

This is vertical and similar for its horizontal counter part...

So the logic is more than obvious,
For vertical (and horizontal), do a sub-string search column-wise and
(row-wise for horizontal) wrt the string. Using KMP It'd be O(mn) for an MxN
matrix

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