In an array of 12 positive integers from 0 to 20, swap the first and last elements, the second and the last but one, etc.

In an array of 12 positive integers from 0 to 20, swap the first and last elements, the second and the last but one, etc. Output the source and the resulting arrays, ABC Paskal

program zz1;
const n = 12; // set the number of elements in the array
var i, t: integer; // set variables of integer type
m: array [1..n] of integer;
begin
for i: = 1 to n do // get n random numbers and write them into an array
m [i]: = random (21);
for i: = 1 to n do // display the original array on the screen
write (m [i], ”);
writeln; // go to a new line to display the response
for i: = 1 to n div 2 do
swap (m [i], m [n – i + 1]); // swap places
for i: = 1 to n do // display the resulting array on the screen
write (m [i], ”);
end.