What is wrong with the following program? (10) #include                          //Line 1 using namespace  std;                   //Line 2 int...

What is wrong with the following program? (10)

using namespace  std;                   //Line 2

int main()                                            //Line 3

{                                                              //Line 4

    cout <><>

    return 0;                                          //Line 6

}

What is wrong with the following program? (10)

int main()                            //Line 3

{                                              //Line 4

string str;                             //Line 5

 std::cin >> str;                  //Line 6

cout <><>

return 0;                              //Line 8

}                                              //Line 9