/in/ac.cpp:9:13: error: member reference base type 'char *' is not a structure or union
                if(argv[i].length()>=2){
                   ~~~~~~~^~~~~~~
/in/ac.cpp:10:21: error: member reference base type 'char *' is not a structure or union
                        for(g=0;g<argv[i].length();g++){
                                  ~~~~~~~^~~~~~~
/in/ac.cpp:16:17: error: member reference base type 'char *' is not a structure or union
                        if(g==argv[i].length()){
                              ~~~~~~~^~~~~~~
3 errors generated.