program swap;const N = 10;var a: array [1..N] of integer; i, temp: integer;begin randomize; writeln('исходный массив: '); for i := 1 to N do begin a[i] := Random(10); write(a[i], ' '); end; writeln; i := 1; while i <= 9 do begin temp := a[i]; a[i] := a[i+1]; a[i+1] := temp; i := i + 2; end; writeln('полученный массив: '); for i := 1 to N do write(a[i], ' ');end.