今年の ioccc 会場はここですか?

#include <iostream>
int main(void){
 struct counter{ counter() {
  static int n = 0;
  std::cout << ((++n) % 10);
 }};
 int num;
 std::cout << "整数を入力してください:";
 std::cin >> num;
 delete [] new counter[ num ];
 return 0;
}