#include <iostream>
using namespace std;
int main()
{
int even= 0;
for (int i=1; i <=70;i++)
{
if (i%2==0)
even+=i;
}
cout<<"Even= ";
cout<<even;
return 0;
}
var
a,b,c:array [1..20] of integer;
i,k,l:integer;
begin
randomize;
k:=1;
l:=1;
writeln ('Исходный массив: ');
for i:=1 to 20 do
begin
a[i]:=random(9)+1;
if a[i] mod 2 = 0 then
begin
b[k]:=a[i];
inc(k);
end else
begin
c[l]:=a[i];
inc(l);
end;
write (a[i],' ');
end;
k:=k-1;
l:=l-1;
writeln;
writeln ('Массив четных чисел');
for i:=1 to k do write (b[i],' ');
writeln;
writeln ('Массив нечетных чисел');
for i:=1 to l do write (c[i],' ');
writeln;
readln;
end.
#include <iostream>
using namespace std;
int main()
{
setlocale(LC_ALL, "Russian");
int a, b;
cin >> a;
cin >> b;
cout << "НОД(" << a << ";" << b << ")=";
while (a != 0 and b != 0) {
if (a > b) {
a = a % b;
}
else {
b = b % a;
}
}
cout << a + b << endl;
}