Replace 0s Problem Statement

You are given a matrix where every element is either a 1 or a 0. The task is to replace 0 with 1 if it is surrounded by 1s. A 0 (or a set of 0s) is considered to be surrounded by 1s if there are 1s at locations directly below, above, left, and right of it.

Input:

Line 1: Number of rows M and cols N in the matrix.
Line 2: M x N elements of the matrix separated by space. 

Output:

Just make the changes if any, no need to print or return the matrix.

Example:

Input:

3 3
1 1 1 1 0 1 1 1 1

Output:

(No output printed, modify the matrix in place)

Constraints:

• 1 ≤ M ≤ 10³
• 1 ≤ N ≤ 10³

Note:

You are not required to print or return the updated matrix; just modify it in place.