You remember wrong. var a : array of integer; b : array[0..9] of integer; c : array[1..10] of integer; begin writeln(low(a));

You remember wrong. var a : array of integer; b : array[0..9] of integer; c : array[1..10] of integer; begin writeln(low(a)); // 0 writeln(high(a)); // -1 writeln(low(b)); // 0 writeln(high(b)); // 9 writeln(low(c)); // 1 writeln(high(c)); // 10 end.