/in/foo.cc: In function 'int main()':
/in/foo.cc:38:13: error: 'ss' was not declared in this scope
             ss+=sum;
             ^~
/in/foo.cc:41:54: error: 'ss' was not declared in this scope
         printf("%s\n%d\n%I64d\n",st[0].name,st[0].su,ss);
                                                      ^~