Function receive a two-dimensional square array of random integers. On the main diagonal, all the negative integers must be changed to 0, while the others must be changed to 1 (Note: 0 is considered non-negative, here).

(You can mutate the input if you want, but it is a better practice to not mutate the input)

Example:

Input array

[
  [-1,  4, -5, -9,  3 ],
  [ 6, -4, -7,  4, -5 ],
  [ 3,  5,  0, -9, -1 ],
  [ 1,  5, -7, -8, -9 ],
  [-3,  2,  1, -5,  6 ]
]

Output array

[
  [ 0,  4, -5, -9,  3 ],
  [ 6,  0, -7,  4, -5 ],
  [ 3,  5,  1, -9, -1 ],
  [ 1,  5, -7,  0, -9 ],
  [-3,  2,  1, -5,  1 ]
]