var a:array [1..5] of integer; i:integer;begin randomize; for i:=1 to 5 do begin a[i]:=random(31)-15; write (a[i]:4); end; writeln; for i:=1 to 5 do begin a[i]:=a[i]*2; write (a[i]:4); end; writeln; readln;end.C++:#include <iostream>#include <ctime>#include <cstdlib>using namespace std;int main(){ int a[5]; srand (time(NULL)); for (int i = 0; i<5; i++) { a[i] = rand()%15-15; cout <<a[i] <<" "; } cout <<endl; for (int i = 0; i<5; i++) { a[i]*=2; cout <<a[i] <<" "; } return 0;
Объяснение:
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.