So below I have a code in C++ that is supposed to invert the arguments in a vector, but not the sequence. I have listed my problems as sidenotes in the code below. The invert function is supposed to invert each argument, and then the main function just outputs the inverted words in same order For instance, program("one two three four")=ruof eerth owt eno

 #include <iostream>
 #include <string>
 using namespace std;

 int invert(string normal)
{
     string inverted;
     for (int num=normal.size()-1; num>=0; num--)
     {
         inverted.append(normal[num]);    //I don't know how to get each character
                                          //I need another command for append
     }
     return **inverted**;  <----
 }

 int main(int argc, char* argv[])
 {
     string text;
     for (int a=1; a<argc; a++)
     {
         text.append(invert(argv[a])); //Can't run the invert function
         text.append(" ");
     }
     cout << text << endl;
     return 0;
 }