1.using std::count;
1 int main(int argc, char *argv[]) 2 { 3 using std::count; 4 using std::endl; 5 using std::cin; 6 char response; 7 cin >> response; 8 std::cout << response; 9 return 0; 10 }
2.using namespace std;
1 int main(int argc, char *argv[]) 2 { 3 using namespace std; 4 char response; 5 cin >> response; 6 std::cout << response; 7 return 0; 8 }