/in/foo.cc: In function 'int main()':
/in/foo.cc:12:18: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
     for(int j=0;j<prm.size()&&prm[j]*i<=10001;j++){
                 ~^~~~~~~~~~~
/in/foo.cc:19:23: warning: format '%s' expects argument of type 'char*', but argument 2 has type 'char (*)[101]' [-Wformat=]
         scanf("%s",&a1);
                    ~~~^
/in/foo.cc:20:22: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
         for(int i=0;i<strlen(a1);i++){
                     ~^~~~~~~~~~~