#include <iostream> using namespace std; int main() { int a[1000000] ; cout << "Введите число n..." << endl ; int n , x = 1 ; cin >> n ; for (size_t i = 2 ; i <= 2*n; i+=2){ a[i] = i ; cout << x << " - " << a[i] << endl ; x++; } return 0; }