2373 - Largest Local Values in a Matrix\.

Easy

You are given an n x n integer matrix grid.

Generate an integer matrix maxLocal of size (n - 2) x (n - 2) such that:

• maxLocal[i][j] is equal to the largest value of the 3 x 3 matrix in grid centered around row i + 1 and column j + 1.

In other words, we want to find the largest value in every contiguous 3 x 3 matrix in grid.

Return the generated matrix.

Example 1:

Input: grid = \[\[9,9,8,1],5,6,2,6,8,2,6,4,6,2,2,2]

Output: [9,9,8,6]

Explanation: The diagram above shows the original matrix and the generated matrix.

Notice that each value in the generated matrix corresponds to the largest value of a contiguous 3 x 3 matrix in grid.

Example 2:

Input: grid = \[\[1,1,1,1,1],1,1,1,1,1,1,1,2,1,1,1,1,1,1,1,1,1,1,1,1]

Output: [2,2,2,2,2,2,2,2,2]

Explanation: Notice that the 2 is contained within every contiguous 3 x 3 matrix in grid.

Constraints:

• n == grid.length == grid[i].length

• 3 <= n <= 100

• 1 <= grid[i][j] <= 100