Program n_1;
var i, b, k:integer; a: array [1..2000] of integer;
begin
writeln('Введите числа');
for i:=1 to 2000 do read(a[i]);
writeln;
writeln ('Числа, состоящие из 2 разрядов:');
for i:=1 to 2000 do begin
b:=a[i];
k:=0;
while b>0 do
begin
b:=b div 10;
k:=k+1;
end;
if k=2 then write(a[i], ' ');
end;
writeln;
writeln ('Числа, состоящие из 3 разрядов и кратные 3:');
for i:=1 to 2000 do begin
b:=a[i];
k:=0;
while b>0 do
begin
b:=b div 10;
k:=k+1;
end;
if k=3 then begin
b:=(a[i] mod 10) + ((a[i] div 10) mod 10) + ((a[i] div 100) mod 10);
if (b mod 3) = 0 then write(a[i], ' ');
end;
end;
end.
const
handsfree = false;
nmax = 10;
random_min = -50;
random_max = 50;
var
a: array[0..nmax] of real;
i, n: integer;
sum, x: real;
begin
{ввод массива}
n := nmax;
if handsfree then begin
for i := 0 to n do
begin
a[i] := random(random_max - random_min) + random_min;
write(a[i], ' ');
end
end
else begin
for i := 0 to n do
readln(a[i]);
end;
writeln();
{подсчет суммы}
write('x = ');
readln(x);
sum := a[n];
for i := n - 1 downto 0 do
sum := sum * x + a[i];
writeln('S = ', sqrt(sum));
end.
