c++

Write and test a function that "zeros out" the diagonals of a two-dimensional square array of ints. For example, it would transform the array 11 12 13 14 15 21 22 23 24 25 31 32 33 34 35 41 42 43 44 45 51 52 53 54 55 into the array 0 12 13 14 0 210 23 0 25 31 32 0 34 35 410 430 45 0 52 53 54 0