/in/foo.cc: In function 'int main()':
/in/foo.cc:20:103: warning: format '%s' expects argument of type 'char*', but argument 2 has type 'char (*)[21]' [-Wformat=]
         scanf("%s %d %d %c %c %d",&a[i].name,&a[i].last,&a[i].Class,&a[i].job,&a[i].west,&a[i].article);
                                                                                                       ^
/in/foo.cc:15:13: warning: unused variable 'j' [-Wunused-variable]
     int n,i,j,sum=0,l=0;
             ^