./a.out Abc Def Ghi ihG feD cbA

prncmdlinerev.c

#include <stdio.h>
#include <stdlib.h>
#include <string.h>

int main(int argc, char *argv[])
{
    char **arg = argv + argc -1;
    
    while(arg > argv) {
        char *sptr = *arg + strlen(*arg) - 1;
        while(sptr >= *arg) {
            printf("%c", *sptr);
            --sptr;
        }
        printf("\n");
        --arg;
    }
    
    printf("\n");
    
    return EXIT_SUCCESS;
}

prncmdlinerev.cpp

#include <iostream>
#include <string>
#include <vector>
#include <set>
#include <list>
#include <algorithm>
#include <cstdlib>

using namespace std;


template <class T>
void printReverse(const T& container) 
{
    auto rbiterv = container.crbegin();

    while(rbiterv != container.crend()) {
        auto& elem = *rbiterv++;
        auto rbiterelem = elem.crbegin();

        while( rbiterelem != elem.crend() ) {
            cout << *rbiterelem++;
        }
        cout << " ";
    }
    cout << endl;
}


int main(int argc, char* argv[])
{
    cout << "Sorting and Uniqueness for vector container" << endl;
    {
        vector<string> cmdlineargs { argv+1, argv+argc };
        
        cout << boolalpha;
        cout << is_sorted(cmdlineargs.begin(), cmdlineargs.end()) << endl;
        
        //sort(cmdlineargs.begin(), cmdlineargs.end());
        stable_sort(cmdlineargs.begin(), cmdlineargs.end());
        
        cout << is_sorted(cmdlineargs.begin(), cmdlineargs.end()) << endl;
        
        auto iter = unique(cmdlineargs.begin(), cmdlineargs.end());
        cmdlineargs.erase(iter, cmdlineargs.end());
        
        printReverse(cmdlineargs);
    }
    cout << endl;


    cout << "Sorting and Uniqueness for list container" << endl;
    {
        list<string> cmdlineargs { argv+1, argv+argc };
        
        cmdlineargs.sort();
        cmdlineargs.unique();
        
        printReverse(cmdlineargs);
    }
    cout << endl;


    cout << "Sorting and Uniqueness for set container" << endl;
    {
        set<string> cmdlineargs { argv+1, argv+argc };
        
        printReverse(cmdlineargs);
    }
    cout << endl;

    return EXIT_SUCCESS;
}