range-based for이 가능한 문자열제외 모든 타입에 대해 cin이 가능하게 해줍니다.

istream_iterable_nonstring.cpp

#include <iostream>
#include <type_traits>
#include <vector>
template<typename T>
struct is_string
        : public std::disjunction<
                std::is_same<char *, typename std::decay_t<T>>,
                std::is_same<const char *, typename std::decay_t<T>>,
                std::is_same<std::string, typename std::decay_t<T>>
        > {
};
namespace isiter
{
    using std::begin;
    using std::end;
 
    template <typename T>
    auto is_iterable_impl(int)
    -> decltype (
        begin(std::declval<T&>()) != end(std::declval<T&>()),
        ++std::declval<decltype(begin(std::declval<T&>()))&>(),
        *begin(std::declval<T&>()),
        std::true_type{});
    template <typename T>
    std::false_type is_iterable_impl(...);
}
template <typename T>
using is_iterable = decltype(isiter::is_iterable_impl<T>(0));
template <typename T,
          typename = typename std::enable_if<is_iterable<T>::value&&!is_string<T>::value>::type>
std::istream& operator>> (std::istream& i,T& t) {
  for(auto&k:t)i>>k;
  return i;
}
using namespace std;

int main()
{
	int a[5];
	cin>>a;
	for(int k:a)cout<<k<<endl;
}