在换行之前,我如何才能接受几个整数作为输入?[关闭]

#include <string>
#include <sstream>
#include <iostream>

int main()
{
  std::vector<int> database;
  std::string text_line;
  std::getline(std::cin, text_line);
  std::istringstream input_stream(text_line);
  int value;
  while (input_stream >> value)
  {
    database.push_back(value);
  }
// Edit 1: printing the vector
  for (auto&& v:database)
  {
     std::cout << v << " ";
  }
  std::cout << "\n";
  return EXIT_SUCCESS;
}

int main(){
  std::vector<int> arr;

  do {
    int v;
    char sep;
    auto code = std::scanf("%d%c", &v, &sep);
    if (code >= 1)
      arr.push_back(v);
    if (code < 2 || sep == '\n')
      break;
  } while(true);

  for (auto&& v:arr)
    std::printf("%d ", v);
}

std::scanf std::printf cin cout

printf scanf

std::cin >> x https://en.cppreference.com/w/cpp/locale/num_get/get

. ,

\t0x123 012 \t33 \n-3.-0x33\n

#include <iostream>
#include <vector>

int main(){
    std::vector<int> arr;
    int temp;
    while(std::cin >> temp)
        arr.push_back(temp);
    for(auto i : arr)
        std::cout << i << " ";
    std::cout << '\n';
}

EOF signal