Var x:real;
begin
readln(x);
if (x >= 0 and x <= 1)
then write(x * (x - 1))
else write(x * x - Sin(Pi * x * x));
end.
===== PascalABC.NET =====
begin
var (a, b, x) := ReadInteger3;
if x = 1 then
Print('Сумма', a + b)
else if x = 2 then
Print('Разность', a - b)
end.
1<span>112 - в четверичной системе счисления</span>
Var
a: array[1..10, 1..10] of integer;
i, j, k: integer;
begin
k := 1;
for i := 1 to 10 do
begin
for j := 1 to 10 do
begin
if(j >= i) then begin
a[i, j] := k;
k += 1;
end
else a[i, j] := 0;
write(a[i, j]:3);
end;
k := 1;
writeln();
end;
<span>end.</span>