Q1: Write a function to swap the elements above and below the first diagonal of a two-dimensional array. Ex: LO 1 6 NA N IN Input array 2 3 4 7 8 9 13 14 17 18 19 22 23 24 1 2 3 4 5 10 15 20 25 output array 6 11 16 7 12 17 8 18 9 14 19 10 15 20 12 11 16 N001 13 21 22 23 24 25 SIN stu IN 21 NIN 5