In python

This function should duplicate a 2d array of integers. You may assume that it is 9x9 in size. Its important to make sure that the internal arrays you return are not aliases of the original data - they need to be new arrays! To check that, try out the following code snippet: orig = ... some grid ... copy = dup_grid(grid) copy[0][0] = 9 print(orig) print(copy) # should be different!