В тексте поменять слова местами

#include <iostream>
#include <string>
 
using namespace std;
 
int main()
{
string stroka="hello world another moon";
char *p,s[80];
 
strcpy(s,stroka.c_str());
stroka.clear();
strcpy(s,strrev(s));
p = strtok(s," ");
stroka+=strrev(p);
 
do{
    p = strtok('\0'," ");
    if(p)
     {
       stroka+=" ";
       stroka+=strrev(p);
      }  
} while(p);
cout<<stroka;
 
system("pause>NUL");
    return 0;
}

#include <iostream>
#include <string>
#include <sstream>
#include <vector>
#include <algorithm>
 
int main()
{
    std::string text;
    std::cout << "Enter text:";
    getline(std::cin, text);
    std::istringstream iss(text);
    std::string word;
    std::vector<std::string> vec;
    while (iss >> word)
        vec.push_back(word);
    std::reverse(std::begin(vec), std::end(vec));
    std::ostringstream oss(std::ostringstream::ate);
    oss.str(vec[0]);
    std::for_each(vec.begin()+1, vec.end(), [&oss](std::string word) {oss << " " << word;});
    std::string text2 = oss.str();
    std::cout << text2 << std::endl;
    return 0;
}

#include <algorithm>
#include <iostream>
#include <iterator>
#include <sstream>
#include <string>
#include <vector>
 
int main()
{
    const std::string str = "Eniki beniki eli vareniki";
    std::istringstream ist(str);
    const std::vector<std::string> v { std::istream_iterator<std::string>(ist), std::istream_iterator<std::string>() };
    std::reverse_copy(v.cbegin(), v.cend(), std::ostream_iterator<std::string>(std::cout, " "));
}