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Invert Array
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public static int[][] invert(int[][] arr)
{
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5 points

Write a method that inverts a 2D array. Inverting a 2D array means that each row of the 2D array is now a column, and each column is now a row.

For example, if we were to invert the 2D array:

[1,1,1]
[2,2,2]
[3,3,3]

the result would be:

[1,2,3]
[1,2,3]
[1,2,3]
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